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Nagano Prefecture A Mountain Domain Where Gods and Demons Clash: Nagano Yokai Encyclopedia

Takeminakata and Mishaguji of Suwa, the Nine-Headed Dragon and Demoness Momiji of Togakushi, and the Tengu of Iizuna

A Mountain Domain Where Gods and Demons Clash:
Nagano Yokai Encyclopedia

Nagano Prefecture · ながの

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The landlocked mountain province of Shinano (present-day Nagano) is one of the most yokai-dense regions in the Japanese archipelago. The 3,000-meter peaks of the Northern, Central, and Southern Alps, Lake Suwa sinking at the foot of the Yatsushigatake mountains, the rugged sacred peaks of Togakushi and Iizuna, and the deep valleys pierced by the Nakasendo and Kiso roads ── the higher the mountains and the deeper the valleys, the more tales of clashes between gods and demons accumulate.

Among them, Suwa is an exceptionally rare land of "defeated gods" in Japan, where a deity defeated in the myth of the transfer of the land fled, mingled with indigenous gods, and birthed a new faith. Those driven into the mountains became gods, slain demons were etched into place names, and a wind that cuts people without a sound blows through the mountain passes. Lacking the bounties of the sea, this province has instead harbored tales of gods and demons equal to the number of its mountains and valleys. The ancient layer of faith from the Jomon period remains exposed and alive today ── let us trace these yokai of Shinano, moving from Suwa, to Togakushi and Iizuna, to Kiso and the villages.

Suwa ── The God of the Defeated and the Origin Tale of the Underworld

To speak of the yokai of Shinano, one must begin with Suwa. Here lies a stratum of faith unique in the archipelago, where gods from different eras are layered upon a single land. Even when new gods arrived, the old gods were not erased; defeated gods and native gods alike have continued to be enshrined side by side on the shores of the same lake.

Takeminakata-no-Kami

takeminakata

Takeminakata-no-Kami is a son of Okuninushi-no-Kami who appears in the *Kojiki*'s myth of the Transfer of the Land (Kuni-yuzuri). He has been worshipped as Suwa-no-Okami and Suwa-Daimyojin, the deity enshrined at Suwa Taisha. The Kokugakuin University Deity Name Database summarizes that Takeminakata-no-Kami challenged Takemikazuchi-no-Kami to a test of strength, was defeated, pursued to the Sea of Suwa in Shinano Province, and pledged the surrender of Ashihara-no-Nakatsukuni. Reading only this narrative makes him appear as a defeated god of resistance. However, in Suwa, his immense strength and the memories of the frontier were reassembled into a grand divine character governing wind and rain, water, hunting, agriculture, and victory in contests. The official history of Suwa Taisha narrates that Takeminakata-no-Kami is the deity who moved from Izumo to Suwa, newly building and ruling Shinano Province. The characteristics of the Suwa faith possess a depth that cannot be explained by a single scene from the central myth. The official explanation of the Suwa faith presents Suwa Taisha as an ancient faith that does not have a main sanctuary (honden), but worships nature itself as the object of reverence (goshintai), and describes Takeminakata-no-Kami as a powerful deity governing wind and rain, and the tutelary god of agriculture, hunting, seafaring, and contests. In other words, Takeminakata-no-Kami is simultaneously the loser of the Izumo myth and the local principal deity who unifies the nature and livelihood of the Suwa basin. There is also scholarly fluctuation regarding the positioning of this deity. Kokugakuin points out that Takeminakata-no-Kami's name does not appear in the genealogy of Okuninushi-no-Kami in the *Kojiki*, nor does he appear in the *Nihon Shoki*. However, he is confirmed as the enshrined deity of Suwa by the *Sendai Kuji Hongi* and the entry for Minakatatomi Shrine in the *Engishiki* Jinmyocho. Furthermore, the *Suwa Daimyojin Ekotoba* relays that he defeated Moriya-no-Kami, who was originally the god of Suwa, and enshrined himself there. Takeminakata-no-Kami is a deity standing at the intersection where ancient myths, local Suwa rites, the tutelary god of samurai families, and beliefs in dragon and water deities all overlap.

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The newest layer is Takeminakata-no-Kami, who fled to Suwa after being defeated in the myth of the transfer of the land (Kuni-yuzuri). In the *Kojiki* (Records of Ancient Matters), Takeminakata, a son of Okuninushi, challenges the heavenly messenger Takemikazuchi to a test of strength. However, Takemikazuchi's hand turned into an icicle, then into a sword blade, and he crushed Takeminakata's hand like a reed. The defeated god was pursued all the way to the Sea of Suwa (Lake Suwa) in the province of Shinano, where he surrendered, swearing "I will never leave this land". Yet, this "loser" of the central mythology was elevated in Suwa to a god of war controlling wind and water, and by the late Heian period, he was pushed to the status of a martial deity rivaling those of Ise and Katori. A god defeated and sealed in the frontier transforms into the strongest god of war precisely in that land ── this reversal is the very gateway to the Suwa faith. Suwa Taisha consists of four shrines: the Kamisha (Upper Shrine) Honmiya and Maemiya, and the Shimosha (Lower Shrine) Akimiya and Harumiya. It lacks a main sanctuary (honden); the Kamisha venerates Mount Moriya as its divine body, while the Shimosha venerates sacred trees. This pre-shrine architecture speaks to the antiquity of the shrines. The Kamisha sits to the south of Lake Suwa, and the Shimosha to the north, forming a pair across the lake ── this structure, treating the lake itself as a sacred precinct, is unseen in other grand shrines.

But even before Takeminakata arrived, Suwa had its own native deity: Moriya-no-Kami, the indigenous god who resisted Takeminakata's invasion wielding iron rings. The medieval *Suwa Daimyojin Ekotoba* records that Moriya fought with iron rings while the Suwa deity fought with a wisteria branch, resulting in Moriya's defeat. Though defeated, he was not erased; the Moriya clan, claiming descent from him, held the practical ritual power as the Chief Priests (Jinchokan) of the Kamisha for about 78 generations until the Meiji era. Suwa is a land where the descendants of the defeated god, rather than the victorious one, preside over the festivals. The site of their battle is said to have been across the Tenryu River, and in Okaya today, the Fujishima Shrine venerating Takeminakata and the Moriya Shrine venerating Moriya-no-Kami still stand divided on opposite banks of the river. The Jinchokan Moriya Historical Museum in Chino houses the ancient documents passed down through the Moriya family, preserving to this day the unique layering of Suwa where the victorious god and the defeated god are enshrined together.

What the Moriya clan manipulated was a spirit said to descend upon stones, trees, and all things in nature ── Mishaguji. The Jinchokan would call Mishaguji down upon a young boy, establishing the child as the "Ohouri" ── a living god serving as the direct vessel for the deity itself. Through an enthronement ritual, the young Ohouri became a living god, treated in the flesh as Suwa Myojin himself. This concept, akin to the *marebito* (sacred guest) faith where a god borrows human form to appear on earth, shows that Suwa is a land that has thinned the boundary between gods and humans to the absolute limit. Faith in Suwa Myojin as a god of war spread nationwide through the samurai class from the medieval to early modern periods, resulting in over ten thousand branch shrines across the archipelago today. During the Sengoku period, Takeda Shingen, who conquered Suwa, took the daughter of the defeated Suwa Yorishige (Suwa Goryonin) as a concubine, passing the blood of Suwa to his son Katsuyori. It is said that Shingen himself revered Suwa Myojin and marched into battle under banners bearing his divine name ── the god supposedly defeated and sealed in Suwa was thus summoned back to the battlefield. Theories viewing Mishaguji as a remnant of nature worship since the Jomon period (such as Kunio Yanagita's *Sai-no-Kami* theory or Shinichi Nakazawa's *Shukujin* theory) are fascinating, but these are modern interpretations; the only certainty is the singular point that "the Moriya clan held the ritual power to call down this spirit."

The Onbashira Festival, which conveys the ancient layers of Suwa to the present day. Pulling giant trees from the mountains, sliding them down steep slopes, and erecting them at the shrines—it is the manifestation of a fierce tree worship.
The Onbashira Festival, which conveys the ancient layers of Suwa to the present day. Pulling giant trees from the mountains, sliding them down steep slopes, and erecting them at the shrines—it is the manifestation of a fierce tree worship.

The festivals of Suwa still expose this ancient layer. Once every seven years (by traditional reckoning), in the years of the Tiger and Monkey, giant fir trees are dragged out of the mountains and slid down steep slopes with people riding them in the Onbashira Festival ── a magnificent display of tree worship where gods are called down into the pillars. "Yamadashi" (dragging the giant trees from the mountain to the village), "Kiotoshi" (sliding down the steep hill in one go), and "Tate-onbashira" (erecting the pillars at the four corners of each shrine) ── this series of rituals is so intense it sometimes claims lives, yet the parishioners have repeated it without fail every seven years, turning out in full force. Pillars weighing several tons to over a dozen tons are dragged down the mountain using only human strength and erected around the shrines. The ancient tree worship of calling a god into a tree and welcoming the god from the mountain to the village along with the tree has directly become the festival. In the Kamisha's Ontosai (Head Festival), up to seventy-five deer heads were once offered (now reduced to a few taxidermy heads). It was said that among them, there was always a "split-eared deer of Takano," counted as one of the Seven Wonders of Suwa. Masumi Sugae, a travel writer who visited Suwa in the late Edo period, recorded the bizarre sight of the deer heads lined up at this festival. In an era when Buddhism abhorred the taking of life, the anomaly of Suwa, which continued to offer the heads of beasts to the god of hunting, is evident here. The New Year's *Kawazu-gari Shinji* (Frog Hunting Ritual), where frogs are shot and offered, also preserves an ancient form of animal sacrifice.

The "Hito-ana" (Human Cave) said to be located on Mount Tateshina. According to the medieval "Shintoshu," Koga Saburo descended through this cave to the seventy-two kingdoms of the underworld, eventually taking the form of a serpent and becoming linked to the Suwa Daimyojin.
The "Hito-ana" (Human Cave) said to be located on Mount Tateshina. According to the medieval "Shintoshu," Koga Saburo descended through this cave to the seventy-two kingdoms of the underworld, eventually taking the form of a serpent and becoming linked to the Suwa Daimyojin.

And the god of Suwa also comes from the depths of the earth. According to the origin tale in the Muromachi-period collection of tales, the *Shintoshu*, Koga Saburo of Omi Province, searching for his wife who was abducted by a tengu, descended into a human cave on Mount Tateshina in Shinano, only to be left behind in the underworld due to the betrayal of his older brother who held the rope above ground. Seventy-two countries stretched across the underworld. Saburo wandered through each one, eventually reaching the country of Yuiman, where he spent over thirteen years. When he finally returned to the surface, his body had already transformed into a giant serpent covered in scales due to his long life underground. Saburo, who eventually regained his human form through the teachings of a monk, is said to have become Suwa Daimyojin, and his wife Princess Kasuga became the deity of the Shimosha [6]. At Shinraku-ji Temple in Miyota, the "Pond Where Koga Saburo Emerged" is still passed down today. This story of wandering the underworld to become a serpent and then a god is inextricably linked to the dragon and serpent worship of Suwa.

Why Are There So Many Yokai in Shinano?

It is no coincidence that so many yokai have accumulated in a single prefecture. Shinano is surrounded by high mountains on all four sides, harboring deep valleys and countless mountain passes within. The "boundaries" separating the domains of humans from the non-human were carved as topography itself between mountains and between villages. Every time a person crossed a pass, traversed a valley, or peered into a deep pool, they stepped upon that boundary. The Kamaitachi that blows, the Yamabiko that echoes, and the Azuki-arai that makes noise are all products of such boundary places.

A forest at the foot of the Yatsugatake Mountains, retaining strong traces of the Jomon period. The Mishaguji faith of Suwa is said to have originated from this kind of ancient nature worship that predates the Kojiki and Nihon Shoki.
A forest at the foot of the Yatsugatake Mountains, retaining strong traces of the Jomon period. The Mishaguji faith of Suwa is said to have originated from this kind of ancient nature worship that predates the Kojiki and Nihon Shoki.

Furthermore, Shinano is a land where ancient time since the Jomon period lies exposed. At the foot of the Yatsushigatake mountains, Jomon sites like Togariishi and Idojiri are densely clustered, and clay figurines (dogu) and stone rods have been unearthed from the ground. Some scholars view the Mishaguji faith of Suwa and the tree rituals of the Onbashira as remnants of this Jomon nature worship ── while this is an interpretation rather than an empirically proven fact, people have viscerally felt that the ancient layer preceding the *Kojiki* and *Nihon Shoki* still breathes in this land. It is because of this antiquity that Kunio Yanagita, Shinobu Orikuchi, and more recently Shinichi Nakazawa have often discussed Shinano as a "land where indigenous faith lies bare."

And Shinano had roads that carried people and stories. The Nakasendo and Kiso roads pierced the rugged valleys, and legends were transported along with travelers from post town to post town. The power of these highways is why Kozenji's Hayataro was known as far away as Enshu. Enclosed by mountains, yet connected to the outside by roads ── the yokai of Shinano have been passed down in this tension. The harshness of mountain life ── raising silkworms, breeding horses, and burning charcoal in the tatara ── casts an even deeper shadow over the strange phenomena.

Togakushi ── The Flying Rock Door and Demoness Momiji

North of Suwa, towering deep behind Nagano City, Mount Togakushi is a sacred site of rock.

Kuzuryū

kuzuryū

Kuzuryū, also written with the character for 'dragon' in an older form, is a nine-headed dragon worshipped as a water and rain deity and as a guardian of particular landscapes. Many traditions turn on the same transformation: a poisonous or violent dragon that once harmed people is subdued by an ascetic or eminent monk, abandons its demonic nature, and becomes a benevolent god. At Togakushi in Nagano, a nine-headed, dragon-tailed demon is said to have been sealed in a rock chamber through the merit of the Lotus Sutra by the ascetic Gakumon, also known as Gakumon Gyōja. It then settled as the local tutelary deity Kuzuryū Ōgami. At Hakone in Kanagawa, the monk Mangan is said to have subdued the poisonous dragon of Lake Ashi in the Nara period and enshrined it as the lake's guardian. In Echizen, Fukui, a Hakusan Gongen origin story tells of a nine-headed dragon swimming with a sacred image on its head, an episode said to explain the name of the Kuzuryū River. Rainmaking and flood control remain central, but regional worship also seeks relief from toothache, good relationships, and peace for the realm.

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It is said that Ame-no-Tajikarao-no-Mikoto threw open the Heavenly Rock Door (Ama-no-Iwato) behind which the sun goddess Amaterasu had hidden, and the door flew all the way to Shinano to become a mountain ── hence the name "Togakushi" (Hidden Door). Deep within the sharp rocky ridges, enshrined next to the Inner Shrine (Okusha) of Togakushi Shrine, is a nine-headed, one-tailed dragon god considered an earth deity older than Ame-no-Tajikarao ── Kuzuryu Okami. As a water god for rainmaking and a deity for sealing toothaches (cavities), he is still offered cooked rice every morning. Since the ascetic Gakumon Gyoja opened this mountain in the second year of Kasho (849), Togakushi developed into a major training ground for Shugendo ascetics encompassing five shrines (Okusha, Chusha, Hokosha, Kuzuryusha, and Hinomikosha), and tales were told of ascetics sealing the nine-headed, one-tailed dragon in a rock cave using spiritual power.

In the heart of the Togakushi mountains lies another darkness. It is the legend of Momiji, a beautiful woman exiled from the capital who turned into a demoness in the mountains of Shinano and ravaged the villages. However, detailed plot points such as "born in Aizu," "concubine of Minamoto no Tsunemoto," or "granted the power of the Demon King of the Sixth Heaven" are mostly relatively new additions depicted in the Meiji-era *Togakushiyama Kijo Momiji Taiji no Den*; in the oldest layer of the tale, it is merely told that an ascetic defeated a demon with nine heads and a dragon's tail. The core story of Taira no Koremochi receiving an imperial command and slaying the demoness is still performed today as the Noh and Kabuki play *Momijigari* (Viewing Autumn Foliage). The village where the demon was slain and disappeared is said to be "Kinasa" (Demonless Village), and the "Demon's Rock Cave" remains on Mount Arakura, which was said to be her stronghold, while Kitamuki Kannon in Bessho Onsen is spoken of as the place where Koremochi prayed for victory. On the other hand, in Kinasa, there also remains a cultural tradition entirely contrary to the demoness: that the exiled Momiji taught the village the weaving and elegance of the capital ── this narrative, where the defeated leaves something behind in the land, reflects the ambiguity characteristic of Shinano, which enshrines the defeated god Takeminakata. The "Demon's Rock Cave" where Momiji is said to have holed up remains on Mount Arakura, and in Kinasa, a festival commemorating the demoness Momiji is still held in autumn. The nine-headed dragon who is the god of mountains and water, the demoness Momiji who fell to the mountains, and the giant monk Ao-bozu who swells in the twilight ── Togakushi was a mountain where the sacred and the demonic lived back-to-back.

Iizuna ── The Tengu Riding a White Fox and the Magic of Pipe Foxes

Standing to the east of Togakushi, Mount Iizuna is a mountain where ascetics received "magic" (*ho*).

Iizuna Saburō

Iizuna Saburō

Iizuna Saburō is a great tengu enthroned on Mt. Iizuna in Shinano Province, and the lord of that mountain, who as Izuna Gongen drew a syncretic Shintō-Buddhist devotion. Counted among the Eight Great Tengu, he is said to have styled himself "the third tengu of Japan." He is figured as a crow-tengu bearing a sword and a rope (saku), mounted upon a white fox, and was deeply revered by the warrior houses as a war-god of victory. His name is recorded as "Izuna Saburō" in the medieval Togakushi-san Kenkō-ji Ruki (1458), which transmits that in the first year of Tenpuku (1233) the Izuna Daimyōjin named himself "the third tengu of Japan"—the reason for the "Saburō" (third son), ranking after Atago Tarōbō and Hira Jirōbō. He also stands named as "Izuna no Saburō" in the Muromachi Noh play Kurama Tengu.

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The Iizuna Gongen enshrined here is a syncretic god of victory with the face of a crow tengu, riding a white fox, holding a sword and a lasso, bearing flames on his back, with a white snake coiled around the fox. His familiar is Iizuna Saburo, a great tengu who calls himself the "Third Tengu of Japan" ── ranking next to Tarobo of Mount Atago and Jirobo of Mount Hira. The "Iizuna-no-ho" (Magic of Iizuna) said to be granted by this mountain is a sorcery that commands *kuda-gitsune* (pipe foxes), fox spirits small enough to fit inside a bamboo tube, and the practitioners were called "Iizuna-tsukai." It is said that the pipe foxes possess people and make them sick, or bring them wealth. It was rumored that by asking an Iizuna-tsukai, one could have a pipe fox possess a hated enemy to make them suffer, or make a ruined family wealthy in a single generation. However, families keeping pipe foxes were sometimes shunned in marriage as "kuda-gitsune-suji" (pipe fox lineages), and the power of the magic was spoken of with both awe and discrimination. From the Chubu region to the mountains of Kanto, faith in these possessing spirits is deeply rooted.

The magical power of Iizuna also attracted the warlords of the Sengoku period. It is said that Uesugi Kenshin placed a statue of Iizuna Gongen on the crest of his helmet, and Takeda Shingen also fervently believed in him [11]. The Deputy Shogun (Kanrei) Hosokawa Masamoto was so absorbed in the magic of Iizuna that he was remembered as a man obsessed with sorcery. The mountain faith of the single province of Shinano eventually spread throughout the Kanto region, and Mount Takao Yakuoin still enshrines Iizuna Daigongen as one of its main deities today. The tengu and fox magic of a single mountain thus took root in the sacred mountains of the eastern provinces. Tengu dwelt in the sacred mountains throughout Shinano; Raiju (thunder beasts), which appeared in the form of beasts alongside thunder, were said to leave sharp claw marks on struck trees; and in deep valleys, Yamabiko (echoes), which returned human voices exactly as spoken, bewildered travelers ── it is said that an "Echo Rock" that returns words remains on Mount Koiwadake in Kita-Azumi. The higher the mountain, the more its peak was the domain of the non-human.

Kiso ── Valley Beasts and the Tale of the Spirit Dog

Kiso no Kakehashi, a perilous point on the Nakasendo trail. This narrow path built along a sheer cliff was a precarious boundary separating the human realm from the domain of mountain beasts and yokai.
Kiso no Kakehashi, a perilous point on the Nakasendo trail. This narrow path built along a sheer cliff was a precarious boundary separating the human realm from the domain of mountain beasts and yokai.

In the deep valleys pierced by the Kiso Road, a difficult section of the Nakasendo, lurk the monsters of mountain beasts. This valley, lined with treacherous spots like "Kiso no Kakehashi" and "Torii Pass," is a rugged path where it was not uncommon for travelers to lose their lives, and it harbored enough darkness to nurture stories of mountain beasts attacking people and gods demanding sacrifices.

Hihi (Demon Baboon)

HEE-hee

A yokai resembling a large monkey said to appear in the mountains, often described as an aged monkey that has transformed. It possesses formidable strength and is known in many tales to attack people, especially abducting women. Across regions it is said to burst into loud laughter at the sight of humans; its long lips curl upward until they cover its eyes. Edo-period picture scrolls and encyclopedias depict it as big-bodied with black fur. Some explain the name as imitating its laugh, and it is sometimes confused with other mountain beings like yamawaro.

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The baboon (Hihi) passed down in Kiso is said to be a monstrous transformation of an aged giant monkey that demanded a maiden as a sacrifice every year. It is the spirit dog Hayataro, passed down at Kozenji Temple in Komagane, who defeats it. A traveling monk, hearing that there was a human sacrifice ritual at Mitsuke Tenjin in Enshu (Shizuoka), overheard the monster chanting, "Don't let Hayataro of Shinano know," and traveled all the way to Shinano to borrow the dog ── Hayataro of Shinano and Shippei Taro of Enshu are two sides of the same story. Hiding in a large chest (*nagamochi*) as a substitute for the maiden, Hayataro fiercely bit into the monster when it appeared, and after a fierce death struggle, finally defeated it. However, he himself was deeply wounded, and it is said he struggled back to Kozenji in Shinano before taking his last breath. Hayataro's grave still remains on the temple grounds, and due to this connection with Mitsuke Tenjin in Enshu, a timeless exchange continues between the two locations today. This story pattern of a dog defeating a monkey god demanding maiden sacrifices exists in various places, but the monkey god extermination in the *Konjaku Monogatari-shu* (Anthology of Tales from the Past), considered its prototype, is a story from Mimasaka Province (Okayama), and Hayataro of Shinano is a separate local legend that grew along the post towns of the Nakasendo.

There are other beasts in the valleys. The Edo-period yokai art book *Ehon Hyakumonogatari* depicts the Onikuma (Demon Bear), an old bear of the Kiso Valley turned yokai. At night, it comes down to the villages on two legs, steals horses and cattle, and carries them back to the mountains to eat. It is said that the "Onikuma Rock," a giant boulder pushed into the valley by its monstrous strength, still remains in the mountains of Kiso. In the ceilings of temples and mountain caves lurk giant spiders (Oogumo), aged spiders that have gained demonic power; they were said to stroke people's faces late at night, sucking their vitality and causing illness. When that giant spider takes the form of a beautiful woman to seduce a man, it is the Jorogumo ── the bewitching transformation of a mountain spider that binds its prey with threads. The deep valleys and dense forests harbored a darkness sufficient to make people believe that beasts and insects alike could gain powers surpassing humans if they lived long enough.

Villages and Passes ── Whirlwinds and Nighttime Doorways

Even in the villages and passes descended from the mountains, the bizarre breathed quietly.

The Kamaitachi is the most characteristic yokai of Shinano and Echigo. Causing sharp cuts without pain or bleeding along with a whirlwind, this monster was spoken of in Hida as the work of a "group of three" ── the first knocks the person down, the second cuts with a blade, and the third applies medicine and leaves. Therefore, it does not hurt or bleed. This is the idea that the dry, cold winter wind of the snow country turns into invisible blades that attack people. When a funeral procession traveled along a mountain path, people feared that black clouds would suddenly well up and the cat demon Kasha (fire chariot), attempting to snatch the corpse, would appear. To prevent the Kasha from stealing the body, precautions such as placing bladed tools on the coffin and keeping sutras continuously chanted during the procession were taken in various places. The Amazake-baba (sweet sake hag), who walks around knocking on doors late at night asking, "Do you have sweet sake?" was associated with epidemics like smallpox, and it was said she would bring illness regardless of the answer. People warded off this old woman yokai by hanging cedar leaves, nandina branches, or chili peppers at their doors.

In the riverbank shallows, the Azuki-arai, making the "shoki-shoki" sound of washing adzuki beans every night, terrified travelers without ever showing its form ── the sound itself was the true body of this monster, and it was said that if you followed the sound and got too close, you would fall into the river. The Ame-onna (rain woman) of Shimo-Ina is said to appear on rainy days and abduct children, or simply stand in the rain; the Basho-no-sei (banana plant spirit) dwells in old banana stumps and transforms into a beautiful woman to bewitch monks; and in Higashi-Chikuma, there is the legend of the Warai-hannya (laughing hannya), a woman driven mad by jealousy and passion who turns into a demon, wearing a stiff smile like a mask. Many of these are village monsters spoken of nationwide, not just in Shinano, but the climate of Shinano, which lacks no passes, valleys, or lakes, was an unparalleled land for such monsters to take root. From the Demoness Momiji to the Warai-hannya, the fact that stories of jealousy and passion turning women into demons are so prominent in Shinano is likely not unrelated to the harshness of life enclosed by mountains.

Looking at it this way, one notices a single underlying bass note in the yokai of Shinano. The defeated, the slain, and the hunted are not erased, but are enshrined and passed down in that land as gods or as monsters. Takeminakata, Moriya-no-Kami, Koga Saburo, the Demoness Momiji, and even the beasts of Kiso rather than Kihachi ── it is not the songs of the victors, but the tales of the losers and the boundaries that form the core of imagination in this mountain country.

Lacking the sea, Shinano has harbored tales of gods and demons equal to the number of its mountains and valleys. Enshrining the god defeated in the myth of the transfer of the land as a god of war, carving the slain demon into the name "Kinasa," and elevating Saburo, who wandered the underworld, to a great deity ── the yokai of Shinano are the very memory of this ancient mountain province, wearing the faces of its high mountains and deep valleys.

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All yokai of Nagano Prefecture29

Complete list of yokai linked to Nagano Prefecture, including those not featured in the article above.

Legendary places in this prefecture

Specific places within Nagano Prefecture — mountains, shrines, pools — where yokai are told. Visit each.

  • Moriya-no-kami

    Moriya-no-kami

    Divine

    もりやのかみ

    Moriya-no-kami, the Local Deity of Suwa Who Confronted Takeminakata-no-kami

    Divine SpiritMoriya Shrine (present-day Kawagishi-higashi, Okaya City, Nagano Prefecture) / Suwa Grand Shrine Upper Shrine Ritual Sphere

    The charm of Moriya-no-kami lies in the fact that he is spoken of not as the victor of the central mythology, but as the deity who was there first. Takeminakata-no-kami is the Great God of Suwa standing at the center of the official historical view of Suwa Grand Shrine, but the story of that god entering Suwa requires a god on the receiving end. Moriya-no-kami fulfills that role. He is not a god who fights, loses, and vanishes, but one who, after reconciling, enters into the ritual order as the High Priest. Therein lies a uniquely Suwa-like layering of faith, not merely conquest and replacement. When reading Onbashira, Mishaguji, the Moriya clan, and Suwa Myojin as a single geological stratum, Moriya-no-kami stands precisely at the boundary of those layers.

  • Kuzuryū

    Kuzuryū

    Divine

    kuzuryū

    Kuzuryū Ōgami, Guardian of Togakushi's Waters

    Water and Dragon DeityNine-headed dragon traditions of Togakushi, the Kuzuryū River in Echizen, and Lake Ashi in Hakone

    Kuzuryū Ōgami of Mount Togakushi is worshipped as a once-violent being transformed through subjugation into a benevolent water deity. The core medieval account tells how the ascetic Gakumon subdued a nine-headed demon and made it a good dragon. Under the name Kuzuryū Gongen, the deity later became a focus of rainmaking rites performed by shrine attendants and Shugendō practitioners. Tradition says that Kuzuryū likes pears. Worshippers offered the fruit when praying for relief from toothache, and from the early modern period the deity also attracted prayers for relationships and marriage. Images vary with time, presenting a divine figure, a serpent, or a dragon, while the sacred geography remains constant: a sealed rock chamber, springs, and mountain ravines. Kuzuryū symbolizes the safety of local water sources and the stability of farming. Its former violence is not imagined to have vanished without trace, but to be quieted through remembrance and continued ritual. The Togakushi deity need not be confused with the Black and White Dragon traditions of Echizen, even though they share the work of a water god: regulating rain and river levels and protecting the lives that depend upon them.

  • Takeminakata-no-Kami

    Takeminakata-no-Kami

    Divine

    takeminakata

    Takeminakata-no-Kami, the Fierce God of Water and War Residing in Lake Suwa

    神霊・神格Suwa Taisha Kamisha Honmiya (Present-day Suwa City, Nagano Prefecture) / Around Lake Suwa

    To read Takeminakata-no-Kami deeply, it is crucial not to treat the defeat in the *Kojiki* and the victory of Suwa Daimyojin as separate stories. In the Kuni-yuzuri myth, Takeminakata-no-Kami challenges Takemikazuchi-no-Kami to a test of strength, is defeated, and pursued to the Sea of Suwa. Kokugakuin cites a theory that interprets this scene as refusing to submit to the words of Takemikazuchi-no-Kami, and provoking another kind of contest through a test of strength. In other words, he is a god who did not obey the command of Heaven with words, but responded with the power of his body. The defeat is not a sign of this god's weakness, but evidence that he touched the order of the world with strength. Upon entering Suwa, that defeat shifts into a narrative of local integration. Suwa Taisha narrates that Takeminakata-no-Kami moved from Izumo to Suwa, building and ruling Shinano Province—Takeminakata-no-Kami moved from Izumo to Suwa. Kokugakuin introduces that the *Suwa Daimyojin Ekotoba* states he defeated the original god of Suwa, Moriya-no-Kami, and enshrined himself. Here, there is a composition where a god arriving from the central myth overlaps with the old gods and rituals of Suwa. Takeminakata-no-Kami is not merely a god who fled to Suwa. He collided with the land of Suwa itself, settled there, and changed into a god called by the name of the land. The divine character of Suwa Daimyojin is strong as a god of wind and water. Suwa Taisha explains Takeminakata-no-Kami as a god worshipped since ancient times for governing rain and wind, and as a tutelary god of agriculture, hunting, seafaring, and contests—tutelary god of agriculture, hunting, seafaring, and contests. These four are not disjointed. Rain and wind dictate rice farming; lakes and rivers support transportation and fishing; mountains serve as hunting grounds; and contests relate not only to warriors but to negotiations with nature. Takeminakata-no-Kami was worshipped as a god who reconnects fierce nature to human life. The Omiwatari makes this reconnection visible. According to Nagano Prefecture's explanation, when Lake Suwa completely freezes over, the ice cracks and forms high, mountain-like ridges of ice. This path is considered to be the trail left by the male god of the Kamisha, Takeminakata-no-Mikoto, visiting the female god of the Shimosha, Yasakatome-no-Mikoto—the path where the male god visited the female god. Furthermore, in the Miwatari ritual, the direction and shape of that path are used to divine crops, social conditions, and climate rainfall. The ice is not just a natural phenomenon; it is the movement of a god, becoming letters that read the future of the land. In the Onbashira Festival, Takeminakata-no-Kami's power manifests as the movement of trees and people. The explanation of the Onbashira Festival by Suwa Taisha states that it is a festival where sixteen massive fir trees are hauled and erected at the four corners of the four shrines' precincts, and that a sacred *nagikama* harboring a divine spirit is struck into them to recognize them as sacred trees—sacred nagikama said to harbor a divine spirit. The pillars are dragged purely by human strength, without the use of carts or rollers. Here, divine power is not a quiet interiority, but is renewed as a giant tree moving from the mountain to the village, the bodies of parishioners taking on danger, and the pillars standing at the four corners of the shrine. The god of Suwa is periodically re-erected. Beliefs about hunting and meat-eating also connect the fierceness of this god to daily life. Suwa Taisha recounts that even in eras when taking life was considered a sin, the people of Suwa received the divine talisman of O-Suwa-sama and were permitted to eat venison to survive—eating venison to survive. This is not so much a denial of Buddhist taboos as it is a mechanism where the god assumes the reality of a mountain province. Takeminakata-no-Kami is not a god who grants only clean fertility. He protects the life of the land by embracing hunts involving blood, sacrifices, the winter lake, and the danger of massive trees. Finally, the system of the Ohori, a living god (arahitogami), is crucial. Suwa City explains the Ohori as the yorishiro of Suwa Myojin, and the priest who stood at the apex of the Suwa shrines as a living god—the yorishiro and living god of Suwa Myojin. In the faith of Takeminakata-no-Kami, god does not solely exist in distant myth, but dwells in the human body, the system of the shrine, and the roles of festivals. The god defeated in the Kuni-yuzuri stands at the center of politics and ritual in Suwa through a living god. This inversion is the deepest allure of Takeminakata-no-Kami.

  • Mishaguji

    Mishaguji

    Divine

    Mishaguji

    Mishaguji, Ancient Suwa Deity Descending into Stones and Trees

    Divine Spirit / DeitySuwa Region (modern-day Suwa area, Nagano Prefecture) / Ritual sphere of the Suwa Grand Shrine Upper Shrine

    If one were to treat Mishaguji as a "yokai," it should be viewed not as a terrifying monster, but as a being existing on the border between kami and yokai. Its essence does not lie in folktale tropes like attacking people, shape-shifting, or appearing on dark roads at night, but rather in the spiritual power of stones, trees, pillars, and land invoked through rituals. In Suwa, Takeminakata, Moriya, the Moriya clan, and the Onbashira Festival overlap in complex ways, leaving behind a thick layer of faith that cannot be fully explained by the deities of central mythology alone. Mishaguji is the key to reading this underlying stratum, a presence that transforms Suwa from a mere "stage of myths" into a "place where the land itself harbors the divine."

  • Omoikane

    Omoikane

    Divine

    omoikane-no-kami

    Omoikane, God of Wisdom Who Devises the Rock Cave Plan

    Deity / Divine SpiritTakamagahara / Togakushi Shrine Chusha (Nagano City, Nagano Pref.) / Chichibu Shrine (Chichibu City, Saitama Pref.)

    Omoikane, who formulates the plan for the rock cave, is the god who was first commanded to "think" in the darkness. When Amaterasu-Omikami hid in the Heavenly Rock Cave and the world was filled with calamity, the Kojiki recounts that the myriads of gods gathered at Ame-no-Yasukawara and there bade Omoikane, child of Takamimusubi-no-kami, to ponder. Amaterasu is at the center of the crisis, Ame-no-tajikarao is the one who reaches out at the end, and Ame-no-uzume is the one who turns the situation with her dance. However, it is Omoikane who places them all within the same strategy. He is not just a "god of wisdom," but the architect of crisis management. Omoikane's wisdom manifests not as quiet abstraction, but as highly specific procedural arrangements. After his deliberation, he has the long-crowing roosters of Tokoyo crow, takes hard rocks and iron of heaven, seeks the smith Amatsu-mara, has Ishikoridome make a mirror, has Tamanoya make magatama jewels, and tasks Ame-no-koyane and Futodama with divination, reciting norito prayers, and holding gohei offerings. These are not disjointed props. Just as Kokugakuin University's artifact commentary reads the Heavenly Rock Cave myth as an origin tale of rituals equipped with mirrors, jewels, cloth, iron products, and divination bones, Omoikane's plan is the compositional power to organize ritual technology into a single drama. The core of this compositional power is not in "persuading" Amaterasu, but in creating a situation where she approaches the doorway on her own. The mirror shows Amaterasu a strange presence outside, the jewels and cloth decorate the sacred space, the prayers establish order as words, and the dance and laughter break the enclosed atmosphere. Ame-no-tajikarao hides beside the door, but the only moment he can act is when Amaterasu attempts to step outside slightly. In other words, Omoikane's strategy is not one of coercion. It is a strategy to arrange the conditions that change the opponent's consciousness, creating a single point where the final force can act. It is significant that the Kokugakuin University annotations connect the meaning of Omoikane's name to "possessing the wisdom of deep thought" from an alternate account in the Nihon Shoki. Thoughtfulness is not merely having a lot of knowledge. It is the ability to read the situation, the stakeholders, and the procedures, thinking about what order of actions will cause the maximum change with the minimum destruction. At the Heavenly Rock Cave, merely breaking the stone door with military force was not the solution. The sun goddess's reappearance had to be established as a ritual, a council, a laugh, and the act of looking into a mirror. Omoikane is the god who reads that totality. His reappearance during the Descent of the Heavenly Grandson shows that this god's wisdom was not a one-time cleverness. Amaterasu-Omikami adds Tokoyo-no-omoikane-no-kami, Ame-no-tajikarao, and Ame-no-ishikadowake-no-kami alongside the sacred treasures, and commands that the mirror be worshipped as her own spirit. Furthermore, Omoikane is given the role of "taking charge of preceding affairs and governing." The god who assembled the ritual before the rock cave takes charge of the rituals centered around the mirror on earth, and engages in governance. Here, "thinking" transitions from mythological crisis response to the intellect of operating institutions. Ame-no-yagokoro-omoikane-no-mikoto at the Chusha of Togakushi Shrine preserves this character as a tactical god within mountain worship. The official history states the Chusha's deity is Ame-no-yagokoro-omoikane-no-mikoto, describing him as the god who originated the Iwato Kagura (sacred dance) during the Heavenly Rock Cave event. Here, Omoikane is not simply a smart god, but the inventor of rituals including performing arts. The Iwato Kagura belongs not only to Uzume who danced it, but also to the wisdom of Omoikane who constructed that setting. The Chusha's faith in academic success and business prosperity can be read as a faith in the power to synergize multiple conditions, beyond the simple wish that wisdom works well for exams or commerce. Yagokoro-omoikane-no-mikoto at Chichibu Shrine provides further political and regional context. The official page identifies this god as the ancestral god of politics, scholarship, industry, and good fortune, marking Chichibu-hiko-no-mikoto's enshrinement of his ancestral god as the origin of the shrine. The combination of politics, scholarship, and industry is very close to Omoikane's essence. Politics is the intellect to position people, scholarship is the intellect to establish logic, and industry is the intellect to actualize materials and techniques. The god who combined mirrors, jewels, iron, divination, and personnel allocation at the Heavenly Rock Cave being worshipped as the ancestral god of these three domains in later eras shows a perfect alignment between his mythological deeds and his divine virtues in faith. Reducing Omoikane to a light metaphor like "brain trust" obscures the gravity of the myth. He is a god who, when darkness covered the world, did not fight the darkness itself, but designed a space so the world could regain its brightness on its own. Amaterasu, Uzume, Tajikarao, the mirror maker, the jewel maker, norito, divination, and the sakaki tree—only when all of these are aligned does the rock cave open. Omoikane's power is not individual cleverness, but the power to weave multiple forces into a single restoration. What is needed in a deadlocked situation is neither shouting nor destruction, but the intellect to find the sequence. Omoikane is the god of that quiet sequence.

  • Ame-no-tajikarao

    Ame-no-tajikarao

    Divine

    ame-no-tajikarao

    Ame-no-tajikarao, the God of Strength Who Opens the Rock Cave

    Deity / Divine SpiritTakamagahara / Sana-no-agata (now Taki, Taki District, Mie Prefecture) / Mount Togakushi (now Togakushi, Nagano City, Nagano Prefecture)

    Merely calling Ame-no-tajikarao a "god of strength" fails to capture his true sharpness. In the Kojiki's Heavenly Rock Cave ③, he takes action at the precise moment when the myriads of gods are making noise, Ame-no-uzume is dancing, Ame-no-koyane and Futodama present the mirror, and Amaterasu-Omikami begins to peek out from inside the door. Ame-no-tajikarao is not a director controlling the scene. After the wisdom of Omoikane, the laughter-inducing dance of Ame-no-uzume, and the prayers and mirror of Ame-no-koyane and Futodama have all accumulated, only he, hiding on the sidelines, directly takes the goddess's hand. In mythology, "touching" carries heavy weight. He does not forcibly drag the sun goddess out, but rather seizes the slight movement of her leaning outwards, securing her on the side of the world. His power is both physical brawn and the ability to read the exact right moment. The resolution of the Heavenly Rock Cave myth is structured as a collaborative effort by multiple gods. As pointed out by Kokugakuin University's Artifact Database, this scene layers elements of ancient rituals such as divination bones, forging, mirrors, jewels, cloth, and sakaki branches. Omoikane thinks, Ishikoridome makes the mirror, Tamanoya makes the magatama, Ame-no-koyane and Futodama handle the ritual and words, and Ame-no-uzume directs Amaterasu's enclosed consciousness to the outside through laughter and dance. Within this entirety, Ame-no-tajikarao bears the shortest and most irreversible action. For prepared rituals to change reality, a physical body to "open" was needed at the very end. Therefore, his divinity lies not in solitary super strength, but in the final point where ritual makes contact with the world. In the Kojiki, immediately after Ame-no-tajikarao takes Amaterasu's hand and pulls her out, Futodama stretches a shirikumena (shimenawa) behind her and declares, "You may not return further inside than this." This sequence is crucial. Because opening and making return impossible are continuous. The restoration of light cannot be achieved merely by opening the door temporarily. It was necessary to end the state of self-confinement and seal that boundary with a sacred rope so that darkness would not cover the world again. Ame-no-tajikarao is the god who lays his hand on the boundary between the inside and outside of the rock cave, darkness and light, retreat and reappearance, completing the mythological "restoration of light" by pairing with Futodama's rope. Taking into account the variant traditions in the Nihon Shoki lineage, this god's actions become even more multi-dimensional. Kokugakuin University's annotation on Heavenly Rock Cave ③ introduces that in the main text of the Nihon Shoki's seventh stage, it is depicted as Tajikarao-no-kami catching Amaterasu's hand and pulling her out, while in the first variant (Issho 3), it is depicted as Ame-no-tajikarao-no-kami standing by the rock door and pulling it completely open. If the Kojiki focuses on the "divine hand," the Nihon Shoki variant shifts the focus to the "rock door" itself. In either case, he is the god who breaks the blockage. Whether the object is the hand of a god or a door of stone, Ame-no-tajikarao's action lies in breaking through boundaries. The "hand" included in his name can be read not merely as a symbol of muscular strength, but as an organ that directly intervenes between the divine and the world. His reappearance in the Descent of the Heavenly Grandson ② reconnects the scene of the Heavenly Rock Cave to the Ise ritual system. In the main text, in addition to the descent of the five attendant deities, the eight-span mirror, magatama, and Kusanagi sword, Tokoyo-no-omoikane-no-kami, Ame-no-tajikarao, and Ame-no-ishikadowake-no-kami are added as accompanying deities. It further notes that the mirror should be worshipped as the spirit of Amaterasu-Omikami, and that Ame-no-tajikarao is enshrined in Sanana-no-agata. Here, he transitions from the hero of the momentary opening of the rock cave to a member of the ritual order that transfers Amaterasu's spirit to the earth. If Omoikane supports ritual and governance, and Ame-no-ishikadowake is stationed as the god of the gates, Ame-no-tajikarao is the power that supports the boundary transition when the sacred treasures descend from heaven to earth. The hand that opened the Heavenly Rock Cave is now added to the procession of sacred treasures descending from Takamagahara to Ashihara-no-nakatsukuni. Togakushi Shrine is a sacred site that transformed this mythological role into the shape of a mountain. According to its official history, Togakushi Shrine enshrines deities related to the Heavenly Rock Cave myth from Takamagahara, with Ame-no-tajikarao-no-mikoto enshrined at the Okusha, Ame-no-yagokoro-omoikane-no-mikoto at the Chusha, and Ame-no-uzume-no-mikoto at the Hinomiko-sha. This is a structure where the mythological casting is deployed across the five shrines of Togakushi. Furthermore, the legend that the rock door pushed open by Tajikarao-no-mikoto fell to the lower world and became Mount Togakushi connects the very place name "Togakushi" (hidden door) to the memory of the Heavenly Rock Cave. The door that opened for only an instant in the Kojiki remains as a mountain in Togakushi. Ame-no-tajikarao is also the god who converts unseen events in Takamagahara into a mountain worship practice that people can climb and visit. In modern times, it is natural, given the meaning of his name, that Ame-no-tajikarao is worshipped as a god of good fortune, fulfillment of wishes, bountiful harvests, and victory in sports. However, the power referred to here is not the power to simply pin down an opponent. In the story of the Heavenly Rock Cave, had he merely destroyed the door with sheer force, Amaterasu likely would not have returned. Only when wisdom, ritual implements, laughter, mirrors, and words are aligned, and Amaterasu herself turns her consciousness outward, does Ame-no-tajikarao's hand change the world. Therefore, praying to this god is not about wishing for a blind breakthrough, but rather praying for the power to take the final step without hesitation after all preparations are complete. There is a closed door. But at the same time, there is a power waiting before the door. Ame-no-tajikarao is the god of that quiet standby and the decisive hand.

  • Ryūjin

    Ryūjin

    Divine

    ryūjin

    Ryūjin, the Water God Who Stills the Storm

    Water and Dragon DeityWater-deity traditions throughout Japan, with distinct Ryūjin legends at Enoshima, Kifune, Togakushi, Hakone, Mount Miwa, and elsewhere

    As the water god who stills storms, Ryūjin stands at the meeting of sea and sky and holds the weather in divine power. Fishers, sailors, and rice-growing communities all prayed to this god in moments of need. That power has two edges: timely rain can nourish a field, while great waves and violent wind can break a ship. People therefore developed rites not simply to obtain power from Ryūjin, but to soothe the raging aspect of water and invite its life-giving one. The sea god's greatest treasures are the tide-flowing and tide-ebbing jewels, which command the rise and retreat of the sea. Yamasachi-hiko receives the pair from the sea god, uses one to overwhelm his elder brother with water, and the other to draw it away and save him. Their control of the tide expresses the heart of Ryūjin's authority. Coastal shrines received prayers for calm weather and a rich catch; inland rites sought rain, offered black horses in drought, or lowered offerings into deep pools. Legends from Lake Ashi and other waters in which a monk subdues a dragon and transforms it into a guardian preserve the close bond between fear and reverence. Ryūjin's role as lord of the Dragon Palace grows from the same divinity of water. Beyond the sea or beneath it lies a realm of wealth and a different measure of time. A visitor may return with treasure, or carry away years that cannot be recovered, as Urashima Tarō does when he opens the jeweled box. Ryūjin is therefore not merely a fabulous beast but the deification of water itself, the source on which life and death both depend. To still the storm is also to renew the fragile covenant between human beings and the natural world.

  • Kama-itachi

    Kama-itachi

    Legendary

    kah-mah-ee-TAH-chee

    Kama-itachi

    Animal ShapeshiftersCentral Japan, Kinki, and Shin’etsu regions (various locales)

    Kama-itachi is a name for a wind-borne anomaly found in Edo-period art, essays, and oral lore, referring both to the phenomenon and its alleged agent. It is tied to whirlwinds and chill gusts in northern and mountainous regions, noted for razor-like lacerations when one stumbles on the road, delayed pain or bleeding, and frequent injuries to the legs. Its true nature varies across sources: invisible minor spirits, beasts riding the wind, or acts of deities coexist as explanations. In Shin’etsu it is said to strike those who break calendrical taboos, and in Hida a three-stage action is told. In parts of Chubu and Kinki, the whirlwind itself is called kama-itachi, while Edo essays report beast tracks left after a dust devil. Under regional aliases like Tosa’s “Field Sickle,” funerary tools turned uncanny are blamed for similar wounds. In haiku it settled as a winter season word and a sign of wind-borne calamity. This version limits itself to attested sources, avoids overlinking to specific places or persons, and presents regional types side by side.

  • Koga Saburo

    Koga Saburo

    Legendary

    Koga Saburo

    Koga Saburo, the Serpent Deity of the Underworld

    Half-Human / Half-YokaiKoka District, Omi Province (around present-day Koka City, Shiga Prefecture) / Mount Tateshina (present-day Nagano Prefecture) / Suwa Taisha

    The fascination of the Koga Saburo legend lies not merely in its heroic epic, but in how it explains the origins of Suwa Myojin as "the return of a mortal who fell underground." Unlike Takeminakata-no-Kami from the Kojiki, who retreats to Suwa as the defeated figure in the myth of the transfer of the land, Koga Saburo travels from Omi to Shinano, falls into the underworld through a cave on Mount Tateshina, and returns as a serpent. The deity of Suwa does not simply descend from the heavens, nor does it merely arrive from central mythology; it manifests by passing through mountain caves, subterranean kingdoms, and the body of a snake. This narrative beautifully weaves together the elements of Suwa worship—water, mountains, dragons, serpents, hunting, and the syncretism of Shinto and Buddhism—into a single tale. This is precisely why it is meaningful to establish Koga Saburo as a distinct figure alongside the official enshrined deity Takeminakata.

  • Tengu

    Tengu

    Legendary

    Tengu

    What Is a Tengu? An Overview of Types and Iconography

    Mountain & Wilderness SpiritsKyoto, Shiga, and Wakayama Prefectures (the seats of the great tengu on the various sacred mountains)

    This edition is not about a single seat on a particular sacred mountain, but a general treatise that thoroughly unravels "what a tengu is" from the history of its iconography and types. The individual traditions of each seat are left to the page of each great tengu. The form of the tengu is not uniform. The first type is the long-nosed tengu—ruddy face and high nose, clad in the ascetic's headcloth (tokin) and the suzukake robe, a feather fan in hand and one-toothed high clogs on the feet. The second is the crow tengu, with a crow's beak and wings, grasping a sword or a vajra staff. The third are the lesser tengu called leaf tengu and wood-chip tengu, held to be weak and numerous kin. Rather than a fixed classification, these reflect the breadth of the tengu image across eras and regions. The iconography shifted over time. The Heian-period tengu was first conceived as a bird like a black kite, and the image of the crow tengu retains that vestige. The long nose grows prominent only from the late Kamakura period; the Zegaibō Emaki depicts a scene in which a tengu that had disguised itself as a human has its nose lengthen as it returns to bird form. As for the origin of the long nose, there are theories that derive it from the high-nosed Jidō mask of gigaku and link the crow tengu to the Karura (Garuda) mask, and a view that sees the long nose as an iconographic vestige of a bird's beak—but none can be called settled doctrine. It was overlaid with the god Sarutahiko, described in the Nihon Shoki as having a nose seven hand-spans long, and the custom arose of using a tengu mask for the role of Sarutahiko in festivals. The tengu's dual nature is rooted in the Buddhist notion of the way of the tengu. Because it studies the Buddhist path it does not fall into hell, and because it handles heterodox arts it cannot reach paradise either—an intermediate state, and the one who falls there was held to be the arrogant monk. The Tengu Zōshi depicts this notion as satire of the monks of the seven great temples, yet Chigiri Kōsai too warns that the simplification "only arrogant monks become tengu" goes too far. Demon though it is, once subdued it turns to guardianship, and it was held that if a Shugendō practitioner recites the Tengu Sutra he may summon the tengu of the various provinces to grant his wishes—this amplitude between guardian and demon is the very core of the tengu. The certain medieval source for the grouping called the "Eight Great Tengu" lies in the libretto of the Muromachi-period Noh play Kurama Tengu. The passage in which the great tengu calls up the tengu of the provinces he commands in geographical order—"In Tsukushi, Buzenbō of Hiko-san; in the four provinces of Shikoku, Sagamibō of Shiramine; Hōkibō of Ōyama; Saburō of Iizuna… the host of Zenki of Ōmine, Takama of Katsuragi"—shows that the Eight Great Tengu were rooted in medieval belief and performing arts, not an Edo invention. Still, the composition wavers by source, with a variant that adds Hōkibō of Ishizuchi-san; it is no fixed roster.

  • Iizuna Saburō

    Iizuna Saburō

    Legendary

    Iizuna Saburō

    The War-God Who Rides a White Fox — Iizuna Saburō

    Mountain & Wilderness SpiritsMt. Iizuna, Shinano Province (Nagano City, Nagano)

    To read Iizuna Saburō, one must overlay three strata: the syncretic honzon-image of "Izuna Gongen," the heterodox art of the "Izuna method," and the devotion of the Warring-States commanders. The antiquity of this faith is backed by the texts. The Asabashō of the first year of Kenji (1275) carries the name of Mt. Iizuna and its founding ascetic; the Togakushi-san Kenkō-ji Ruki (1458) records "Izuna Saburō" and "the third tengu of Japan"; the Iizuna-san Meguri Saimon (1546) gives the origin as the Chira Tengu come from Tenjiku; and the Iizuna-san Ryaku Engi transmits the honji-butsu and the lineage of the Sennichi-dayū. From Kamakura to Edo, it is a faith handed down in layers. The iconography of the honzon is profoundly distinctive. A crow-tengu holding a sword and a rope rides upon a white fox, with a snake often coiling about the fox. Its honji-butsu is expounded now as Fudō Myōō, now as Dakini-ten, varying by source. It is precisely this composite character—"tengu, fox, Fudō and Dakini" joined in a single body—that is the reason Izuna Gongen, surpassing a mere mountain tengu, became a point of concentration of esoteric ritual power. At Takaosan Yakuō-in, the Iizuna Shrine of Shinshū, Jinya-ji on Mt. Kano in Chiba and elsewhere, the faith is especially deep in Kantō and to the north. The "Izuna method" is the practical face of this ritual power. This sorcery, which employs tengu and kuda-gitsune to heal illness and, by possession, to deliver oracles, was counted a heterodox art alongside the Atago Shōgun-hō and the Dakini-ten-hō, and those who wielded it were called Izuna-tsukai. The folk belief that one kept and employed kuda-gitsune within a bamboo tube made the very name "Izuna" a byword for witchcraft. And it was the devotion of the warrior houses that raised Iizuna Saburō to a war-god. It is famous that the crest of Uesugi Kenshin's helmet was an image of Izuna Gongen; there is also the case of Takeda Katsuyori granting the name Nishina to the adopted son of the Sennichi-dayū, and commanders such as Hosokawa Masamoto who practiced the Izuna method itself. As a god who governs victory in war, Iizuna Saburō is, even among the forty-eight tengu of the Tengu-kyō, the seat most bound to this-worldly benefit. Chigiri Kōsai of tengu scholarship placed this many-sided Iizuna Saburō within the system of the great tengu of the many mountains.

  • Raijū

    Raijū

    Legendary

    RYE-joo

    Thunder Beast of Kuji District Lore

    Animal ShapeshiftersHitachi Province (modern Kuji District, Ibaraki Prefecture)

    A local apparition said to descend with peals of thunder during the seedbed season, feared for ravaging paddies. Rites to drive it off include cracking split bamboo, and folk custom sets bamboo poles in fields to mark a safe return path. It is understood less as a human-harming monster than as a personification of lightning disaster, and those who approach are said to have their vitality sapped and fall stupefied. Its diet and appearance are inconsistent, with traditions likening it to a weasel, a tanuki, or a cat.

  • Jorōgumo (Enchanting Spider)

    Jorōgumo (Enchanting Spider)

    Legendary

    jo-ROH-goo-moh

    Tradition-Faithful Jorōgumo Archetype

    Animal ShapeshiftersVarious regions across Japan (notably Izu and Sendai)

    A Jorōgumo based on the canonical image found in Edo-period sources. A great spider, having aged into a yokai, assumes the form of a young woman or a mother and child to exploit lapses in human judgment. She appears at liminal places such as waterfalls, deep pools, verandas at the edges of mountain villages, and abandoned houses, casting many layers of silk to bind victims and dull their judgment through sleep or enchantment. Toriyama Sekien depicted her commanding fire-breathing spiderlings, helping fix motifs of acting in groups and fleeing into the upper parts of houses such as the attic. In some regions she is deified as a protector against drowning, with stones or small shrines raised in her honor. Many tales end with her being thwarted by human wit—cutting her threads and tying them to a stump, or seeing through her disguise—while others warn of taboos where breaking a vow of secrecy brings death, or of fatal infatuations that drain one’s life. This profile avoids modern embellishment and stays within the breadth of existing tradition.

  • Rain Woman

    Rain Woman

    Epic

    AH-meh-ON-nah

    Rain-Summoning Female Spirit

    Weather & Calamity SpiritsVarious regions of Japan (notably Shinshū/Nagano and the Kantō area)

    In historical sources, Ame-onna first appears in Toriyama Sekien’s illustrations, though his entry leans on an allegory from Chu, leaving the standalone monster image faint. In oral traditions nationwide two types stand out. One is a female apparition on rainy nights that targets children (such as Shinshu’s “Ame-onba”), with motifs like approaching crying children on night roads and carrying a sack. The other is a numinous being that summons rain in drought, tied to rain-invoking rites and shrine prayers, venerated as a symbol of blessed showers. Rather than contradicting each other, these reflect a folk reading of rain’s dual gifts and perils. From early modern times, a nickname meaning “one who brings rain” also stuck to individuals, but that is a social label, not a yokai image. Sources vary widely by region, and many tales leave names and citations unspecified.

  • Kasha (Corpse-Dragging Fiend)

    Kasha (Corpse-Dragging Fiend)

    Epic

    KAH-shah

    Cat-Type Kasha (Early Modern Tale Variant)

    Ghosts & SpiritsAcross Japan

    A composite form of the bakeneko that solidified in the late 17th century. An aged cat arrives with thunderstorm or dark clouds, seizing the corpse from a coffin by exploiting lapses during funeral processions or wakes. After Toriyama Sekien’s illustrations, the feline form became standard. Regional lore varies: forked tails, attendant will-o’-wisps, or concealment within black clouds. Its targets are not limited to evildoers. Folk countermeasures include night-long vigil at the wake, placing knives or razors atop the coffin, using prayer beads and sutra recitation, and disruptive funeral tactics.

  • Amazake Hag

    Amazake Hag

    Epic

    ah-mah-ZAH-keh BAH-bah

    Traditional Folklore Aligned

    Half-Human BeingsTohoku and Kanto regions

    Amazake-babaa was told as a visitor who heralds the arrival of epidemics. She knocks at midnight and asks whether there is sweet sake; the very act is a test of taboo, and answering is understood as a conduit for misfortune. People hung apotropaic symbols—cedar sprigs, nandina, and chili peppers—at their gates and avoided replying. Across Edo, people visited images of an old woman said to calm coughs, linking petitions to folk belief. The tradition overlaps memories of smallpox outbreaks; some view her as a guise of the smallpox deity, while others absorbed the image of a peddler woman on cold nights, creating regional variation. The yokai is transmitted with the taboo structure of “answer and you fall ill,” accompanied by threshold-warding rites, and is positioned as a portent tale that signals the presence of disease.

  • Yamabiko

    Yamabiko

    Epic

    yah-mah-BEE-koh

    Traditional Figure (Kodama and Mountain-Deity Retainer Interpretation)

    Natural phenomena and nature spiritsAcross Japan (mountains and gorges)

    Yamabiko is the personification of echoes in the mountains, interpreted as a kodama or a retainer of the mountain deity. Its habit of repeating words back is seen as a boundary-marking reply within the mountain domain, warning against reckless shouting that disrupts the mountain’s vital energy. Early modern images depict it as a small beast akin to a dog or monkey; figures in Hyakkai Zukan and Gazu Hyakki Yagyō have been linked to the yama-ko in Wakan Sansai Zue and to Penghou, said to dwell within trees. Depending on region, intermediaries vary—bird calls like the yobukodori or resonant rocks such as “Yamabiko Rock.” Phenomenon, spirit, and monster imagery overlap in layered tradition.

  • Azuki-arai (Bean Washer)

    Azuki-arai (Bean Washer)

    Epic

    ah-ZOO-kee ah-RAH-ee

    Azukiarai of the Mountain Stream

    Ghosts & SpiritsVarious regions—especially mountain valleys in Kanto, Chubu, and Kinki

    Rooted in the classic image of the Azukiarai, it blends with the sounds of ravines and flumes, washing red beans through the midnight hours. It lures with sound and tests the curious who peer in. Drawing on early modern notes that it excels at counting and judges vessel measure and bean quantity at a glance, it is not wantonly harmful, but serves as a keeper of taboos along the water’s edge.

  • Great Spider

    Great Spider

    Epic

    OHH-goo-moh

    Great Spider of Mountain and Wilds

    Animal ShapeshiftersVarious regions of Japan (mainly mountain areas and around temples and shrines)

    A tradition-grounded composite of spider apparitions said to gain occult power through great age, lurking in mountain passes, temple rafters, and caves. Appearances range from an ordinary spider grown enormous, to a hairy arm extending from the ceiling, to an old woman in human guise. Avoiding notice, it moves by night, saps vital energy, and binds victims with silk. In slaying tales it often retreats after its limbs are severed by blades, or reveals its true form and is later found as a corpse. Names and lairs vary; reports surface sporadically in local curiosities and essays. Though terms like yamagumo and tsuchigumo sometimes overlap, here it refers broadly to eldritch old spiders.

  • Hihi (Demon Baboon)

    Hihi (Demon Baboon)

    Epic

    HEE-hee

    Hihi (Traditional Accounts)

    Animal ShapeshiftersVarious regions (mountain areas)

    A depiction of the hihi based on Edo-period images and folklore. Said to dwell in mountains, it is an aged monkey transformed into a giant, powerfully built being. Many regions tell that it bursts into loud laughter, and when its long upturned lips roll back to cover its eyes, it leaves an opening to strike. Tales include the abduction of women, bouts with woodcutters, and raising wind and storm to hurl people. Natural history compendia such as Wakan Sansai Zue report black hair, large size, and hearsay of human speech, though exact locales and physical evidence remain uncertain. Its name is commonly linked to its laugh. It is sometimes conflated with yama-warawa or monkey deities, but is often distinguished as an ape-shaped mountain monster.

  • Osaki-gitsune

    Osaki-gitsune

    Rare

    osaki-gitsune

    The Small Fox Clinging to Family Lineages: Osaki-gitsune

    Animal YokaiChichibu, Musashi Province (Present-day Chichibu region, Saitama Prefecture) / Kōzuke Province and Kōshinetsu region

    In this version, we read the Osaki-gitsune as the "small fox clinging to family lineages." The terror of the Osaki-gitsune is not that it suddenly jumps out on a mountain path. Its terror lies in the fact that by being spoken of as possessing a house for generations—that the family is an "Osaki holder"—it completely alters the reputation of the entire family. The yokai does not appear before the individual; it rides upon the family name. The Osaki-gitsune functioned as an explanation for wealth. In village societies, when only a specific family became wealthy, the reason was sometimes spoken of not merely as effort or luck, but as the invisible power of a fox. This narrative contains both envy and fear. A wealthy family has power, but whether that power is legitimate is doubted. The Osaki-gitsune is an entity that translates economic imbalance into the form of a yokai. As an explanation for illness or possession, the Osaki-gitsune also played a major role. Unexplained ailments, sudden madness, and abnormal appetites were spoken of as fox possession, becoming subjects for prayers and exorcisms. Here, the fox does not just enter the sick person's body; it spreads the suspicion of "Who sent it?" and "Which family has it?" The belief in spirit possession expands bodily issues into issues of the family and the community. The proximity to the Kuda-gitsune enriches the reading of this version. Both are small fox spirits that possess houses and are tied to wealth and disease. However, while the Kuda-gitsune easily takes on the sorcerous image of bamboo tubes or Izuna magic, the Osaki-gitsune functions more strongly as a family's reputation. Whether they actually keep a fox cannot be confirmed. Even so, simply being said to "have it" sways marriage prospects and social interactions. The invisible fox has visible effects socially. The Osaki-gitsune in this version is less a yokai with the appearance of a small animal, and more a suspicion dwelling in a house. While the shape of its tail or the size of its body changes depending on the teller, the feeling that "there is something in that house" never disappears. The outline of the Osaki-gitsune is clearest when we shift our eyes from searching for yokai in the fields and mountains, to looking at family reputations. The power of the Osaki-gitsune lies not in visible possessions, but in the suspicion of invisible possession. Even without evidence of actually keeping a fox, if it is said that "that house has Osaki," the attitudes of those around them change. Before showing its form, the yokai begins to operate as a reputation. In this version, we read the Osaki-gitsune as a memory device of the village. A certain family has been rich since the old days, produces sick people, or is avoided in marriage. Such memories are bundled under the name of the fox. The Osaki-gitsune has the function of transforming individual incidents into the narrative of a single family lineage. Therefore, the cute image of a fox is insufficient for the Osaki-gitsune. Even though it is small, it sways the evaluation and future of a family. Though it is a fox yokai, what it truly bites into are human relationships. The small fox lurking in the house becomes largest in the eyes of the community. Precisely because it is invisible, this fox enters deep into the house. The fewer people who have seen its form, the harder it is to deny. Something no one can verify sways the judgments of marriage and association. The Osaki-gitsune demonstrates very sharply the process by which a yokai becomes a social fact. That slight invisibility is what makes the Osaki-gitsune remain for a long time.

  • Demons of Mt. Ichiya

    Demons of Mt. Ichiya

    Rare

    ichiyazan-no-oni

    The Demons of Kinasa Who Built a Mountain in One Night

    Demons / Giant MonstersMinase, Shinano Province (Present-day Kinasa, Nagano City) / Mt. Ichiyazan

    Unlike the demoness Momiji, who was refined on the Noh and Kabuki stages, the demons of Mt. Ichiya are indigenous demons who bear the very origin of the place name. Their action is singular—to build a mountain overnight and block the arrival of the capital. The desperation of a local existence refusing to be stripped of its home is condensed into this single point. While the Momiji legend is a story of descent—'a noblewoman exiled from the capital falls into a demon'—the demons of Mt. Ichiya are depicted as entities that existed in the village from the beginning and resist the capital coming from the outside. The name of the real-life general Abe no Hirafu overlaps with the quasi-historical framework of Emperor Tenmu's capital relocation, giving the legend a strange sense of reality. The conclusion, where the demons are defeated and the name 'Kinasa' is born, is also a story of renaming the land from the perspective of the victor (the center), and the bitter aftertaste of this legend lies in the fact that the defeat of the demons itself was permanently carved as a place name. The cluster of Kyoto-derived place names remaining in Kinasa are scattered in the valley even today, serving as evidence of the victor's memory.

  • Kuda-gitsune

    Kuda-gitsune

    Rare

    kuda-gitsune

    The Possessing Fox Lurking in a Bamboo Tube: Kuda-gitsune

    Animal YokaiCentral mountains centered around Shinano Province (Present-day Nagano Prefecture) / Kai Province

    In this version, we read the Kuda-gitsune as the "commanded fox lurking in a bamboo tube." The smallness of the Kuda-gitsune is not just its appearance. Because it is small enough to fit in a tube, it can be carried around. Because it can hide under the floorboards or in the storage room, it becomes a family secret. Because it is out of public sight, the rumors that "it possessed another family," "it called in wealth," or "it sent an illness" can take hold. Being small is precisely its power to slip into the cracks of society. The premise of a commanded fox spirit distances the Kuda-gitsune from the Inari fox. While Inari foxes are often enshrined as divine messengers, the Kuda-gitsune is spoken of as a tool carrying human desire. While moving on its master's orders, it simultaneously affixes the reputation of a "possessed lineage" (tsukimono-suji) to that master's household. The power to bring profit is also the power to invite suspicion. The more the Kuda-gitsune fulfills human wishes, the murkier it makes human relationships. The Kuda-gitsune as an explanation for illness is folklorically significant. When unknown diseases, sudden madness, or abnormal appetites occurred, it was sometimes said that a fox had possessed the person. This is an explanation from an era outside modern medicine, but simultaneously the language expressing tension between households. The questions of "Who sent it?" and "Which family has the fox?" drag not only the sick person but the entire community into the fray. The relationship with Izuna magic strengthens the sorcerous nature of the Kuda-gitsune. In the belief spheres of Izuna Gongen and fox users, the imagination of commanding tiny fox spirits overlapped with mountain asceticism and magical power. Here, the Kuda-gitsune is not a wild fox, but a spiritual familiar placed under a practitioner's management. The container of the bamboo tube symbolizes this dominant relationship. Foxes are confined, carried, and dispatched to wherever necessary. The Kuda-gitsune in this version is not a cute little fox, but a fox serving as a family secret. Though its form is small, its impact is immense. Wealth, illness, marriage, reputation, and prayers revolve around a single fox spirit. Therefore, when reading the Kuda-gitsune, we must look at it not just as an animal yokai, but as a mechanism through which village society named invisible imbalances. The tube of the Kuda-gitsune is a symbol of domination. The imagination of shrinking a spirit, putting it in a container, and taking it out when needed perfectly expresses the human desire to possess invisible power. However, the spirit that was supposed to be possessed eventually turns the household itself into an object of suspicion. The Kuda-gitsune brings profit to its user while eating away at their reputation. In this version, we also read the Kuda-gitsune as the "reverse side of wealth." When there is wealth that cannot be explained by effort or luck, people imagine a secret spirit behind it. Tales of foxes carrying wealth are words mixed with envy and caution. Families possessing them are envied and shunned at the same time. The Kuda-gitsune brings profit and isolation together. Furthermore, the Kuda-gitsune is a spirit at exceptionally close range, even among foxes. It is not encountered in the wild mountains, but resides under the floorboards of the house or inside a tube. It is not in a distant otherworld, but lurking in the storage spaces of daily life. This proximity is the creepiness of the Kuda-gitsune. Because it is small, it is overlooked, and because it is overlooked, it can slip in anywhere. Reading the Kuda-gitsune is also reading what it means to "possess a fox." Holding a spirit might bring profit, but from that moment, the owner is also possessed by the spirit. The Kuda-gitsune shows that the more people desire secret power, the more they are bound by that secret.

  • Aobōzu (Blue Monk)

    Aobōzu (Blue Monk)

    Rare

    ah-oh-BOH-zoo

    Aobōzu of Traditional Iconography and Provincial Tales

    General ClassificationsVarious regions (Wakayama, Fukushima, Gifu, Hiroshima, Shizuoka, Nagano, Okayama, Yamaguchi, Kagawa, etc.)

    An Aobōzu type based on images in Edo-period picture scrolls and regional field collections. Depicted as a monk with a bluish hue or as a one-eyed priest, it may be told as an animal in disguise, a manifestation of a mountain deity, or an uncanny being of uncertain nature. It serves to warn children against wandering, anchors tales of hauntings in fields, mountains, and vacant houses, and conveys oral taboos. No fixed proper name or origin is agreed upon, and its conditions of appearance and behavior vary by region. Because Sekien’s print lacks commentary, notes from other sources list it alongside the “One-Eyed Monk” or as an allegory for an unseasoned priest, but neither view is definitive. In premodern oral accounts, concrete images coexist under multiple labels such as “Blue Priest,” “Great Monk,” and “Little Monk.”

  • Banana-Plant Spirit

    Banana-Plant Spirit

    Rare

    bah-SHOW-noh-SAY

    Tradition-Faithful, Sekien Illustrated Edition

    Natural Phenomena SpiritsAcross Japan (notably Ryukyu and Shinshu traditions)

    A整理 based on the plant-spirit of banana (bashō) as pictured in Toriyama Sekien’s Konjaku Hyakki Shūi. The broad leaves rustle and cast uncanny shadows in wind and rain, thought to summon the strange, with the belief that an aged clump comes to harbor a spirit. It takes the form of a beautiful woman to unsettle both clergy and laity, posing the riddle of whether grasses and trees can attain Buddhahood, and vanishes depending on one’s response. Tales include encounters in Ryukyuan banana groves, an apotropaic rule that those who carry blades are spared, and Shinano stories where striking it leaves the bashō stalk wounded by morning. It is not consistently harmful, more often serving as a warning through shock and confusion. Typical settings are temple gardens, banana plots, and manor yards.

  • Taira no Koremochi

    Taira no Koremochi

    Rare

    taira-no-koremochi

    The Yogo General Who Vanquished the Demoness Momiji

    Humanoid Yokai / Half-human Half-yokaiMt. Arakura, Togakushi, Shinano Province (Present-day Nagano Prefecture) / Bessho Onsen Kitamuki Kannon (Present-day Ueda City, Nagano Prefecture)

    Taira no Koremochi is an entity of the 'demon-slaying hero' archetype who stands not on the side of *yokai*, but on the side that strikes them down. Just as Sakanoue no Tamuramaro subdued Suzuka Gozen and Otakemaru, and Minamoto no Yorimitsu subdued Shuten-doji, Koremochi carved his name in lore as the one who vanquished the demoness Momiji of Togakushi. What makes him a hero is not pure military force, but the fact that the story weaves in 'the limits of human power'—he is initially defeated by Momiji's dark arts and can only conquer the demon after praying to buddhas and deities. The fascination of Koremochi's figure lies in the flexibility with which his protector swaps depending on the medium of the legend. In Noh it is Hachiman, in Bessho-lineage accounts it is Kitamuki Kannon—the same warlord is protected by different divinities depending on local faith and theatrical convenience. This implies that Koremochi is not an entity rigidly tied to a specific god, but rather a vessel carrying the archetype itself of 'the warrior who slays demons with divine protection'. While Kinasa reveres Momiji as a noblewoman, Koremochi is strictly a subjugator executing the orders of the center, and only by combining both does the dual nature of good and evil in the Momiji legend emerge. In this encyclopedia where *yokai* are the main characters, Koremochi is a rare subjugator included as a 'counterpart existence that makes the demon possible'.

  • Oni Bear

    Oni Bear

    Uncommon

    OH-nee KOO-mah

    Tradition-faithful Oni-Bear

    Animal ShapeshiftersKiso Valley, Shinano Province (Nagano Prefecture)

    Based on Edo-period sources, this depicts an old bear transformed into a yokai. It usually keeps to deep mountains and avoids human presence, but during famines or seasonal shifts it slips down to villages under cover of night to carry off livestock. Its upright gait can be mistaken for a human silhouette, and its tracks mingle human and bear prints. Tales of great strength tie it to local megalith lore, serving as an unspoken boundary marker for dangerous mountain zones. In slaying legends, communal coordination, selective use of hunting tools, and reverence for the mountain deity are emphasized, and the Oni-Bear is told as more than a mere beast—a symbol that brings calamity to those who break the laws of the mountain. Descriptions in early modern illustrated compilations heighten its uncanny nature while reflecting memories of real bear attacks, showing the intersection of folk environment and ghostly tale.

  • Momijigari (The Demon of the Maple Viewing)

    Momijigari (The Demon of the Maple Viewing)

    Uncommon

    moh-MEE-jee-GAH-ree

    Demoness Momiji (Performing Arts Tradition)

    Oni and giant creaturesTogakushi Mountain, Shinano Province (Nagano), Japan

    A demoness archetype fixed in Noh, joruri, and kabuki from the Muromachi to Edo periods. She appears under the pretext of autumn leaf viewing as a courtly lady-in-waiting or princess’s attendant, lulling suspicion with music and dance. At the feast she inebriates warriors, but near midnight her nature is exposed by divine protection or a sacred blade, and she reveals her true form in the wilds of Mount Togakushi. Commonly called Momiji, she bears aliases such as Princess Sarashina depending on the work. Her slaying tales extol martial virtue and reflect awe of the mountains, inheriting Togakushi worship and the rhetoric of oni-hunting lore. On stage, the contrast between the elegant disguise of the first act and the ferocious demon visage of the second is emblematic.

  • Smiling Hannya

    Smiling Hannya

    Uncommon

    wah-RAH-ee HAHN-nyah

    Edo Painting Traditions Edition

    Demons & GiantsShinano Province (Higashichikuma District, Nagano Prefecture), and elsewhere

    An edition distilled from late Edo-period ukiyo-e and comic prints depicting the smiling Hannya. Horns, fangs, bristling hair, wide staring eyes, and a strained grin form its core. Objects in its hands often allude to life and death, unsettling viewers with deliberate motifs. The demon-woman is understood to have once been human, transformed by accumulated jealousy, resentment, and attachment, aligning with the concept behind the Hannya mask. Specific local legends are sparse, yet it was treated in night-time tales and picture books as a symbol of fear and admonition, preserved as an image of the extreme of a woman’s grudge. In local oral tradition sometimes only the name remains, with the transmission of its form relying mainly on pictorial sources.

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