This version of Sakanoue no Tamuramaro is not treated as the historical military official, but as the deified Tamura Daimyojin of later generations. He is told as a warrior receiving the protection of Kannon at Kiyomizu-dera, a paired husband-and-wife deity with Suzuka Gozen at Suzuka Pass, and as General Tamura subjugating Akuro-o and Otakemaru in Tohoku. A single person's name wandered through the temple origins of Kyoto, the mountain pass faith of Suzuka, and the shrine and temple origins of Tohoku, acquiring different faces in each land. The power of Tamuramaro is not the sword that slashes demons itself. Kiyomizu Kannon, Vaisravana, Suzuka Gozen, the sacred sword, and the gods of the passes support his story, transforming his martial prowess into "protection acknowledged by the gods and buddhas." Therefore, in the Tamura-gatari, rather than the scenes of defeating enemies, what matters more is which gods and buddhas took his side, in what land he was enshrined, and to which mounds or temples the memories were transferred. Sakanoue no Tamuramaro is a hero who defeats yokai, but at the same time, an axis to pass down yokai as stories to later generations.

The key to reading Seoritsuhime lies in placing purification not on "making white" but on "making move." The sins and impurities in the Oharai-no-Kotoba are not things merely to be reflected upon in the mind. They are transferred onto purification objects, named by the incantation, and handed over to the water falling from the mountains. Seoritsuhime is their first carrier. The place she resides is not a calm lake surface, but the rapids of a swift river. In places where water hurries, where currents swirl, where footing becomes unstable, sins are separated from the human domain. The work of this deity differs from gentle comforting. Seoritsuhime does not envelop and preserve impurities. She receives what has been purified and carries it straight out to the great ocean. There is an ancient wisdom here that, rather than continually analyzing sin, one should change its location at a certain point. A human community would break if it only accumulated sins and impurities internally. Thus, purification reveals sins through words, places them on objects, and returns them to the natural cycle. Seoritsuhime is the deity of that switch, the power itself that returns stagnant things to the flow. Observing the chain of the four Haraedo deities makes Seoritsuhime's role even clearer. When she carries them from river to sea, Hayaakitsuhime swallows them in the tide's whirlpool, Ibukidonushi blows them away with his breath to the Root Country and Bottom Country, and Hayasasurahime finally causes them to be lost. In other words, Seoritsuhime is not the completion of eradication, but the initiation of the transfer toward eradication. The deity who handles the first step is often the closest to humans. In the moment a person lets go of a sin or impurity, it has not yet disappeared. However, it is no longer in the owner's hands. Seoritsuhime stands in that suspended time. Seoritsuhime's charm as a water goddess is also born from this. Water is precious not because it is pure, but because it purifies by flowing. It does not reject turbidity; it carries it. It is natural that faiths drawn to waterfalls and rapids turn toward Seoritsuhime. Falling water continuously crosses boundaries: from top to bottom, from mountain to river, from river to sea. The goddess standing there is not the guardian of a fixed sanctuary, but a deity who facilitates passage across boundaries. Her purity is not a halted innocence, but an order maintained by flow. On the other hand, one should keep a distance from the temptation to speak of Seoritsuhime as the "hidden true body" of Amaterasu Omikami. In the official explanation of Ise Jingu, Aramatsuri-no-Miya is the first auxiliary shrine of the Naiku, enshrining the Aramitama of Amaterasu Omikami, and the Aramitama is explained as a particularly conspicuous manifestation of divine power. Seoritsuhime's name is not placed there. Therefore, narratives connecting the two are safely treated as later annotations, folk beliefs, and modern reception. There is no need to deny such layers, but mixing them with the deity's character in the original texts ironically causes Seoritsuhime's own contours to be lost. Seoritsuhime's uniqueness lies not as a shadow name for the sun, but in the procedure of water. If Amaterasu Omikami is the deity who illuminates and orders the world, Seoritsuhime is the deity who hands over the sins and impurities inevitably generated within that order to the water for circulation. A bright order requires a system to process shadows. The place where Seoritsuhime works in the Oharai-no-Kotoba is exactly that location. To maintain a world ruled by light, water must carry the dirt away. She is not an opponent of light, but the waterway ensuring the world of light does not break. Praying to this deity does not mean pretending the dark things inside oneself never existed. Rather, it is about giving them a name, giving them a form, and handing them over to where they should flow. Seoritsuhime does not condemn those holding sins, but she refuses to let them hold onto them forever. Sadness, regret, anger, the turbidity of old relationships. She carries such things to the water's edge and creates a moment to let go. Her purification is not forgetting but transferring, not forgiveness but a flow path. Therefore, before Seoritsuhime is a pure goddess, she is a goddess of movement. In this sense, Seoritsuhime's divine authority is easily reinterpreted into modern emotional organization, but she should not be confined to simplistic psychology. The purification of the Oharai-no-Kotoba was a public word meant to rebuild a grand order encompassing not just the individual's inner self, but the community, officials, and the nation. Seoritsuhime connects that word to the water. She is a deity who hands over what cannot be resolved by the heart alone to space, current, and time.

Aburahi-daimyojin is a deity unique to Koka, intertwining nature spirits, Buddhism, and samurai worship. Its origins lie in ancient mountain worship directed at Mount Aburahi, a sacred peak whose summit shrine still venerates the water goddess Mitsuhanome-no-kami, preserving an older layer of belief. Overlaid onto this is the legend of the descent: "A god descended with a light like burning oil," which is told as the origin of the shrine's name. Furthermore, a Muromachi-period history connected the shrine's founding to Prince Shotoku (with Nyoirin Kannon as its original Buddhist manifestation, or *honji-butsu*), and in the Middle Ages, it evolved into the "Sosha of Koka," revered as a war god by the Koka samurai. Its mention in the oaths of the *Watanabe Family Documents* indicates that Aburahi-daimyojin was the deity before whom the shinobi of Koka swore their vows. Its multifaceted nature—encompassing fiery light, a sacred mountain, martial divinity, and the protection of fire and oil—mirrors the spiritual history of Koka, a land where espionage, fire arts, and Shugendo mountain asceticism intersected.

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.

Modeled on the chieftain who ruled ogres from Mount Ōe. He descends to villages disguised as a monk or young warrior, exploiting lust, drink, and human weakness. At banquets he feigns hospitality, but in truth he is a raging ogre who abducts people. In the slaying tale, his foes turned a sacred oath against him and sapped his strength with poisoned sake. Letting in guests dressed as mountain ascetics proved fatal.

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.

The key to reading Hira-san Jirōbō lies in the meaning of the rank "second seat, next after Tarōbō," and in the medieval sources particular to Mt. Hira. In the tengu hierarchy, Jirōbō is held to be the second after Atago-san Tarōbō. This ordering appears almost in common both in the forty-eight tengu of the Tengu-kyō and in the Eight Great Tengu framework, and the very names Tarōbō and Jirōbō derive from the ordinals "one" and "two." Rather than being told of alone, Jirōbō appears more often paired with Tarōbō as the twin pillars of the tengu world. The firm ancient layer of Hira's tengu lies in the Hirasan Kojin Reitaku (by Keisei, 1239). This dialogue, in which the aged tengu of Mt. Hira answers Keisei's questions and speaks of the tengu world and the afterlife, is a primary source particular to Mt. Hira, showing that Hira held a firm place as a tengu sacred mountain in the medieval age. Here one common confusion should be set right. Jirōbō is often bound to the tale of the Chinese tengu Chira Eiju (= Zegaibō), but the original story in the Konjaku Monogatarishū, Book 20 runs on the plot of a tengu of Shintan defeated by a monk of Mt. Hiei, and does not name Mt. Hira as the seat of the Japanese tengu. Making Chira Eiju the tengu of Hira is a later arrangement; the tradition proper to Mt. Hira itself should rather be sought in the aforementioned Kojin Reitaku. The tale of relocation from Mt. Hiei is likewise understood not as historical fact but as a later narrative telling the changeover of a sacred mountain's leadership. Based at Mt. Hira, the sacred peak of Ōmi, fearing Buddhist law while testing human conceit—this coexistence of modesty and fortitude is the image of Jirōbō. Chigiri Kōsai of tengu scholarship, too, set Jirōbō in the place next after Tarōbō.

From Sarasvatī to Benzaiten — Two Thousand Years of Cultural Transformation. While the basic description touches on Benzaiten's major sanctuaries and folk beliefs, this in-depth analysis explores her cultural evolution spanning over two millennia from ancient India's Sarasvatī to modern Japan's Benzaiten. Sarasvatī is one of the oldest deities in the Rigveda (c. 1500–1200 BCE), governing river flows, music, arts, language, and poetry. After being adopted into Buddhism, she was transformed into a tutelary deity in the Golden Light Sutra and Lotus Sutra, spreading to China, Korea, and Japan. In Japan, she evolved through several stages: (1) as a scriptural protector during the ancient Ritsuryo Buddhist period (7th–9th centuries); (2) merging with Ugajin to form Uga-Benzaiten in the medieval Kamakura period; (3) becoming a deity of wealth and a member of the Seven Lucky Gods in the early modern Edo period; (4) having her enshrined identity frequently altered to Ichikishimahime during the Meiji era's separation of Shinto and Buddhism; and (5) transitioning into a subject of modern superstitions, tourism, and subculture. She stands as a prime example of an ancient deity's cultural evolution, continuously transmitting her legacy while altering her appearance, attributes, and name over two millennia. Ugajin — The Mysterious Human-Headed Snake Deity. Ugajin, who merged with Benzaiten from the Kamakura period onward, is a bizarre figure depicted with a human head and a coiled snake body, and remains a mystery in academic studies. While the etymology of "Uga" points to the grain deity Ukanomitama from the Kojiki and Nihon Shoki, the origins of the serpent imagery are debated, with theories citing influences from the Chinese creator deities Fuxi and Nuwa, the Indian Naga (serpent gods), and indigenous Japanese snake worship from sites like Mount Miwa and Suwa. The amalgamation of a "uniquely Japanese snake deity of unknown origin" with a "Buddhist goddess of Indian origin" to form Uga-Benzaiten is a symbolic testament to the syncretism, creativity, and mysticism of medieval Japanese religious culture. Two-Armed vs. Eight-Armed Statues — Dual Iconographic Lineages. There are two main lineages of Benzaiten statues. (1) Two-Armed Statues: Depicting an elegant heavenly maiden playing a biwa (lute). This lineage inherits the original musical goddess nature of Sarasvatī and has been the traditional form in Japan since the Heian period. (2) Eight-Armed Statues: Depicting a heavily armed warrior goddess holding eight weapons and ritual implements such as a sword, jewel, bow, arrow, axe, halberd, dharma wheel, and vajra. This form, described in the 5th–6th century Chinese translation of the Golden Light Sutra, emphasizes her role as a protector of the state. The eight-armed figure embodies a fierce martial nature quite distinct from the "elegant goddess of arts" image. Combined with the medieval serpentine form of Ugajin, Benzaiten evolved into an immensely complex deity integrating "elegance, martial prowess, magic, and wealth." The Folklore of Serpentine Transformation — A Layering of Water, Wealth, and Fertility Gods. The transformation of Benzaiten (Uga-Benzaiten) into a snake deity is a folkloric phenomenon deeply intertwined with ancient Japanese snake worship (Mount Miwa, Suwa, Usa, Kumano, etc.). In ancient Japan, the snake was revered as a deity uniting four attributes: water (shrines by rivers, ponds, and the sea), wealth (shedding skin, infinite multiplication), fertility (grain and land), and healing (medicine and taboos). As a result of Benzaiten's fusion with Ugajin and acquisition of snake deity traits, all layers of ancient snake worship—waterside shrines, snakes in wallets, shed skin amulets, and prayers for healing—have been inherited as part of "Benzaiten faith." Even today, modern superstitions like "money-washing water, wallet snakes, and relationship-severing" vividly demonstrate the living heritage of a folk culture where ancient snake gods, medieval Benzaiten, early modern wealth deities, and modern tourism intersect. The Couples' Taboo — Modern Superstition of a Jealous Goddess. At major Benzaiten sanctuaries (especially Enoshima and Itsukushima), a modern superstition prevails that "couples who visit together will incur the beautiful goddess's jealousy and break up." This is a modern variation of an ancient Indian fierce goddess nature (Sarasvatī is sometimes depicted as the wife of Brahma, possessing jealousy and passion), medieval Japanese snake attributes (snakes were symbols of jealousy and attachment), and ascetic taboos such as the historic ban on women on sacred mountains. Going beyond mere superstition, it stands as a fascinating phenomenon condensing the complex religious, folkloric, and psychological history from antiquity to the present, making it a subject of study in 21st-century folklore, psychology, and tourism studies. At the same time, connections with "relationship-severing shrines" (like Yasui Konpiragu in Kyoto) have been noted, showing how Benzaiten's taboo nature integrates with modern cultural practices of seeking separation. The Seven Lucky Gods Faith and Edo Commoner Culture. As the only female member of the Seven Lucky Gods (Ebisu, Daikoku, Bishamonten, Benzaiten, Fukurokuju, Jurojin, and Hotei) established in the Edo period, Benzaiten became a central figure in commoner culture. Practices such as the New Year's Seven Lucky Gods pilgrimage, placing a treasure ship picture under one's pillow, hatsumode (first shrine visit of the year), and praying for business prosperity deeply permeated Edo daily life. This represents a significant cultural shift from the medieval Uga-Benzaiten faith (esoteric Buddhism, mysticism, aristocratic culture) to the early modern Seven Lucky Gods faith (commoners, commerce, urban culture). Benzaiten's early modern worship marks a crucial milestone in an epic cultural transformation spanning over two millennia: from an ancient Indian goddess of arts, to a medieval Japanese esoteric deity, to an early modern Japanese deity of wealth, and finally into a subject of modern tourism and subculture. Benzaiten in the 21st Century — Tourism, Subculture, and Severing Ties. In the 21st century, Benzaiten's legacy continues as a tourism resource through the Three Great Benten Shrines, nationwide Benten shrines, and Seven Lucky Gods pilgrimages. Simultaneously, she is repeatedly reimagined in subculture works, such as the video games *Okami* and *Megami Tensei*, and the manga *Nura: Rise of the Yokai Clan*. She has become a multifaceted icon where ancient Indian goddess traits, medieval Japanese snake attributes, early modern wealth associations, and modern relationship-severing taboos intersect. As a rare example of a single deity embodying over two thousand years of cultural evolution—from Sarasvatī in ancient India to Benzaiten in modern Japan—she remains a vital subject of study in yokai studies, folklore, religious history, and comparative mythology.

The ancient mythic type of the tragic hero. The general entry covered Yamato Takeru's myth. Here the focus is the ancient pattern of the tragic hero. Yamato Takeru is a rare heroic deity who unites the tragic hero, short-lived warrior, father-son conflict, sacrificial love, and ascent after death in a single figure. He begins with fratricide, is rejected by his father and sent on campaigns, survives through his wife's sacrifice, and dies from a mountain god's curse. That arc is structurally close to tragic heroes across the ancient world, including Heracles, Sigurd, and Arjuna. It is a Japanese form of a widespread story pattern: the fate, suffering, and heavenly transformation of the hero. Father-son conflict and the myth of heroic exile. Yamato Takeru is estranged from Emperor Keiko and repeatedly ordered to go on distant campaigns. In comparative mythology, this belongs to the broad pattern of a dangerous son being exiled, tested, and made to conquer. Stories in which a father or ruler sends such a figure away are often compared with traditions surrounding David, Sigurd, and Zheng He, and they reflect questions of patriarchy, succession, and kingship. The tale marks the killing of the brother as a failure of human restraint, yet it also shows the father's coldness. That double structure gives the story a tragic intelligence beyond simple good and evil. Disguise as a young woman: strategy turned into myth. In the Kumaso episode, Yamato Takeru disguises himself as a young woman, enters the enemy camp, and kills the chieftain. The scene is a memorable mythic rendering of military strategy, disguise, and surprise attack. Yet the female disguise is more than tactics. In ancient Japanese myth and folklore, reversal, thresholds, and the crossing of gendered boundaries can be sources of ritual power and sacred danger. Yamato Takeru's disguise can therefore be read not simply as deception but as an act that embodies the magical force of inversion. It also stands as a mythic ancestor to later religious and theatrical traditions of cross-gender performance in kagura, noh, and kabuki. The Kusanagi sword and the Three Sacred Treasures. Yamato Takeru receives the Kusanagi sword from Yamato-hime, escapes the Yaizu fire with it, and after his death the sword is enshrined at Atsuta Jingu. Kusanagi is one of the Three Sacred Treasures at the core of ancient Japanese royal legitimacy. Its transmission runs from Susanoo's defeat of Yamata no Orochi, to presentation to Amaterasu, to the heavenly descent of Ninigi, to Yamato-hime, to Yamato Takeru, and finally to Atsuta Jingu. Through that chain, myth, sacred object, and imperial lineage are joined in material and religious form. Yamato Takeru is one of the few figures who actually uses a sacred treasure in battle, making him a symbol of the union of artifact, hero, and state. Ototachibana-hime's sea sacrifice and the origin of Azuma. Ototachibana-hime's self-sacrifice at sea and Yamato Takeru's cry, "Azuma haya," are treated as the mythic origin of Azuma, the eastern lands and eastern Japan. Ancient myth did not only entertain; it gave meaning to names, geography, land, and local custom. Here a woman's sacrifice becomes attached to the name of the entire east. Hashirimizu Shrine in Yokosuka still enshrines Ototachibana-hime, showing that the episode continues not only in texts but also in place names, worship, and local memory. The death poem and ancient Japanese longing for home. The death poem Yamato Takeru sings at Nobono, "Yamato wa kuni no mahoroba," has long been cherished as one of ancient Japan's foundational expressions of homeland, longing, and love of country. Mahoroba means an excellent, beautiful place, and the word condenses an early feeling for the homeland and the land itself. It influenced later waka traditions such as the Man'yoshu, Kokinshu, and Shinkokinshu. The structure is powerful: a hero at the edge of death praises the place he longs to return to. In modern Japan, the poem has continued to appear in education, literature, music, and public speech. The white-bird legend and ancient Japanese ideas of ascent and rebirth. After death, Yamato Takeru becomes a white bird, rises from his tomb, passes through Kotohiki-no-hara in Yamato and Shiki in Kawachi, and flies high into the sky. The legend is a representative example of the ancient Japanese idea that a hero may ascend and be transformed after death. In early Japan, the white bird could be imagined as a bearer of souls or a messenger of the gods. Beliefs in the dead soul becoming a bird and rising to the sky also have affinities with northern Asian, Siberian, and Korean ideas of birds, funerary practice, and the soul. The image later resonated with Pure Land faith, Shinto views of death, warrior ethics, and even the spiritual culture around the kamikaze special attack corps. It is not merely an ending to a hero tale. It is one of the narratives through which ancient Japan thought about death, religion, and beauty. Yamato Takeru in the twenty-first century. Today Yamato Takeru remains a subject of ancient-history research, local tourism, Shinto worship, and popular culture. Visits to Nobono, Kotohiki-no-hara, Atsuta Jingu, Yaizu Shrine, and Hashirimizu Shrine continue. He is repeatedly reshaped in works such as the game Okami, the 1994 film Yamato Takeru, and manga including Demon Slayer. Across more than two millennia of cultural memory, he has remained a symbol of the tragic hero, the short-lived warrior, love and sacrifice, and ascent after death. From political emphasis in prewar State Shinto, through postwar cultural reinterpretation, to plural retellings in the twenty-first century, he is a model case of how an ancient divine figure can keep entering modern culture.

This version, 'The Death Herald Crying Itsumade (Until When) / Itsumaden', goes beyond being a mere physical monstrous bird, highlighting its aspect as an 'ominous bird of prophecy' that embodies the anxiety of its era's society. In the *Taiheiki*, the appearance of this monstrous bird coincides with the political upheaval of the Kenmu Restoration (1334). The bird's cry of 'Itsumade (Until when?)' superficially incites the fear of death from plagues. However, in a literary and historical context, it acts as a political allegory, representing the agonizing cries of the common people exhausted under Emperor Go-Daigo's direct rule: 'Until when will this war and suffering continue?' In medieval literature, a monster appearing on the roof of the Emperor's palace (Shishinden) signified a warning from heaven (heavenly punishment) against the instability of royal authority and a lack of virtue. Furthermore, the sequence of exterminating this monstrous bird strongly mirrors the 'template' of Minamoto no Yorimasa's 'Nue extermination' in *The Tale of the Heike*. The structure—an unidentified chimera appearing at the night palace, its subjugation by a master archer, and the subsequent reward from the Emperor—served as an epic device to heroicize Oki Jirozaemon Hiroari as a 'new Yorimasa', thereby decorating the authority of the Kenmu government that commanded him. However, while the Nue cried with a voice 'like a bulbul', this bird uttered the clear, human-like words 'Itsumade', imbuing it with a much more direct curse upon its era. During the Edo period, when Toriyama Sekien drew it in his *Konjaku Gazu Zoku Hyakki*, he added the depiction of it breathing terrifying flames from its mouth. The original text of the *Taiheiki* contains absolutely no mention of it breathing fire. This is thought to be the result of overlaying the imagery of mysterious lights flying in the night sky and the 'Kasha' (fire chariot) that carries the resentment of the dead. The visual impact of this 'flame' and 'nocturnal monstrous bird' decisively shifted its interpretation in the later Showa period toward a vengeful spirit, described as 'a monster born from the resentment emitted by abandoned corpses.' In this version, Itsumaden is not merely a bird of prey that attacks people; it is closer to an 'arbiter' that manifests using the resentment of those who died with no one to mourn them and the distortions of society as its energy. Therefore, its cry functions as a cold herald of death, striking directly at the listener's mind more than any physical attack could, questioning: 'Until when will your fate (or your sins) hold out?'

In medieval Japan, the monkey deity was told as a fusion of mountain divinity and simian monster. It ruled mountain domains and demanded offerings like a calendar ritual, seen as a relic of ancient sacred marriage rites, yet storytelling emphasized its brutality as a yokai. In slaying tales, a passing hunter or a monk with sacred power stands in as a substitute, and a trained dog plays the decisive role. The defeated deity sometimes possesses a shrine official to beg forgiveness, hinting at lingering sanctity. In some regions it was known as a possessing spirit, with sudden rages blamed on its curse. Early modern ghost stories pair man‑eating ferocity with comic butt‑fondling, portraying the ambivalent scorn and fear directed at monkeys.

A famed form tied to legends of Mount Mikami in Ōmi and the shores of Lake Biwa. Said to coil around the mountain seven and a half times, its shell is as hard as metal or stone, impervious to arrows and blades. At night its legs gleam crimson, casting a long shadow over the lake and mountain skirts. Tales of its slaying are linked to martial valor and understood in relation to dragon-god worship and the numinous power of bridges. Connections to mining and blacksmith lore have been noted, though details remain unclear.

An interpretive line anchored in Toriyama Sekien’s iconography, organizing the notion of Fudō Myōō’s epiphany at waterfalls as a yokai-encyclopedia entry. The title “Takiryōō” is treated as a pictorial theme, while the entity itself is viewed as a manifestation of Myōō devotion. It appears at waterfall basins across the provinces, subduing demons and malign influences, and is cited in miracle tales told by ascetics and pilgrims. Its virtue and demon-subduing nature take precedence over yokai-style terror, placing it closer to a divine spirit among strange phenomena. Concrete site names and dated incidents are scarce, with accounts drawn mainly from iconographic materials and temple origin narratives.

A compiled version of the Myōtaraten images rooted in local faiths of Echigo Yahiko and Okitama in Dewa. Their origin tales involve transformations of an old woman, an ogre, or a shapeshifting cat, whose ferocity is quelled when enshrined, after which they call rain and protect children and the virtuous as village guardian deities. Though bearing a Buddhist-style celestial name, the being is essentially a deified female presence embodying the numinous power of mountains and borders, centered on faith around Mount Yahiko and the Ichihon-yanagi wayside shrine. One tradition says thunder roars once a year when she returns to Sado, aligning agrarian views that link thunderstorms with harvests. Names and forms vary—old crone, celestial maiden, demoness—but the core is a turn toward benevolent protection.

A version grounded in medieval tales where the spirit of the monk Raiyō becomes a swarm of rats or a monstrous iron-furred rat known as the Tesso and gnaws through the sutra repository of Enryaku-ji. Rivalries among temple powers are projected onto a narrative of vengeful deification, linking ritual efficacy with retribution. In literature it appears mainly in war chronicles, blending a real monk’s biography with a settled ghost-vengeance legend. Later yomihon and paintings amplified this image, symbolizing rat blight and the ruin of sutra scrolls, yet at its core lies a folk pattern of a rancorous spirit bringing calamity upon sacred objects and scriptures.

Daidarabotchi is not so much a terrifying monster as a giant whose existence serves to explain the origins of the land. He has been debated both as a degraded folk version of the nation-building deities from the *Kojiki* and *Nihon Shoki* myths, and as a product of ancient peoples' imagination trying to explain Jomon period shell mounds or natural terrain features. Musashi Province is one of the areas where these legends are particularly strong, dotted with origin stories of place names—such as "Ootakubo" in Saitama City—where his footprints turned into depressions, marshes, and wells. Even massive geographical features like Mount Fuji, Lake Biwa, and Lake Haruna are attributed to this giant's deeds, operating on a scale far exceeding a single prefecture. Ever since Kunio Yanagita compiled the footprint legends from across the country, Daidarabotchi has become a "giant bearing the memory of place names and terrain," blending seamlessly into the very landscape of Japan.

Iconographic Disconnect from Western Mermaids. The image of a Ningyo that modern Japanese people envision—a "beautiful female upper body and a fish lower body"—is a product of Western mermaid legends (such as Hans Christian Andersen's *The Little Mermaid*) being imported and taking root from the modern era onward. Prior to this, traditional Japanese Ningyo iconography, as depicted in texts like the *Kaikoku Heidan*, was exceedingly bizarre and grotesque: "a human-like (or monkey-like) face on a scale-covered fish body." The facial features were not necessarily those of a beautiful woman; they were generally depicted as terrifying men, women, young, or old, bearing sharp fangs. The sheer ugliness of this design emphasized the visceral reality of the Ningyo as a "creature from the Other World" and the taboo, grotesque nature of the act of eating its flesh. Biological Models and the Natural History Perspective. The core of Japanese Ningyo folklore is believed to contain no small amount of misidentification of actual biological creatures. For example, a prevalent theory suggests that sirenians like dugongs and manatees, or pinnipeds like sea lions and seals, served as the models for the Umibozu and Ningyo. Additionally, in inland (river or swamp) Ningyo legends, there are cases where the true identity is speculated to have been the Japanese giant salamander. Edo period herbalists (Honzogakusha) meticulously collected and classified records of these unknown marine creatures washing ashore, attempting to re-examine yokai through the lens of "science" (natural history). The Curse of "Eternal Life". The "eternal youth and longevity" brought about by Ningyo meat is a universal human desire, yet in Japanese folklore, it is always depicted as two sides of the same coin alongside "tragedy." As the legend of Yao-bikuni demonstrates, one who obtains eternal youth by eating Ningyo meat must repeatedly watch their beloved family members and husbands age and die, forcing them to experience unbearable loneliness and despair (temporal isolation). The Ningyo is a yokai that acts as a cruel mirror, thrusting the "terror of escaping death" directly in humanity's face.

This version is grounded in Toriyama Sekien’s imagery and the Edo-period essays cited in his notes, interpreting the infant form as a minimal personification of a ghostly fire. Its core is the idea of an oil-thieving flame, with the baby figure best read as Sekien’s visual cue. Lamp oil was a daily necessity, and offerings of oil at temples and shrines were held in special regard. Stealing oil violated religious and ethical taboos and was told as a fire that wanders after death. Later handbooks retell it as a fireball entering a house, becoming a baby, and licking oil, but region-specific oral examples are scarce and no widespread template is certain. Accordingly, this version presents a three-step pattern—phantom fire appears (at crossroads or within shrine-temple precincts), the infant image manifests (gesturing as if licking oil before a lamp), then departs again as flame—while avoiding unverified details and foregrounding its symbolism as a warning against defiling offered oil.

Even among early modern ghost fire tales, the Jiosenbi is a rare example where "who, where, and why" are told in concrete detail. The victim is not a nameless monster, but a peddler selling a real-life sweet called Jiosen, and the scene is the Hizagashira Pine at Izuminawate near the Tokaido's Minakuchi post town—a large tree whose location people could identify. The conditions for the fire's occurrence are also restricted to "rainy nights." It is thought that the experience of seeing will-o'-the-wisps or fox fires on humid nights became intertwined with memories of murders along the highway, solidifying into a single ghost story. The fire as a symbol of obsession with money connects to the lineage of grudge tales born from the monetary economy of early modern cities. As an apparition rooted in the land of Minakuchi, Koka District, it holds value in being passed down alongside other local entities like the Katawa-guruma and Koka Saburo.

Based on Toriyama Sekien’s “Tesso” motif, it appears as a giant rat draped in robe-like shadows, with red eyes and teeth said to be iron-hard. Its origin lies in the vengeful spirit tale of Raigō tied to disputes over the ordination platform at Onjōji, where rivalry between Enryakuji’s Sannō faction and the Miidera side was cast into story and overlapped with real rat damage to temple sutras and treasures. Names vary by period and source, with “Raigō Nezumi” and “Miidera Nezumi” coexisting. Medieval war tales exaggerate its numbers into a calamity of swarming rats, while from early modern times it links to shrine legends of pacification and blessings. Chronologies in records do not always align and the tale is highly narrative, yet shrine and temple names, linked verse, and oral lore support a core tradition. In some regions, extermination stories feature a great cat of Mount Hiei or guardian deities, reflecting the boundary-conscious rivalry between two religious centers.

A variant of the Katakuruma said to haunt Kyoto’s Higashi-no-Toin, marked by a strong urge to chasten with words. In the Enpo era, disliking the city’s taste for night roaming and nosy tongues, it rolled through the streets as a single ring of fire. It appears as one lone ox-cart wheel, cypress spokes sooted and red-hot, with a broad-jawed man’s face set in the hub. Its eyes flicker like lantern flames, its teeth gleam like a comb, and it often arrives biting a child’s single foot. Its first cry is always “Look to your child before you look at me,” both a threat and a plain command to tend the home; those who rush inside sometimes avert harm. But peep out of curiosity and, before rumor can spread, calamity befalls the household’s child. The foot it holds is not some stranger’s far away but is bound to the onlooker’s own child—the terror of this type—its fire slipping thinly through the door crack, drawing blood like beriberi in the sleeping room, leaving a tear. This speech-making Katakuruma is often confused with the Wheel Monk, yet it prefers admonition to mockery, and a single line of speech sets both the cause and the end. When a housewife once peered through a slit on Higashi-no-Toin, the wheel halted before the home, pressed its nose to the door, uttered a verse, and left; she ran to the parlor and found the child only lightly harmed, cured by prayer and decoctions. Thereafter, from the bell at sunset, households barred lattices tight, hung dim lamps within, and vowed not to speak of the strange at their lips. Sightings waned, yet during festivals and pilgrimages it returns, rolling as if stepping on the shadows of paper lanterns. It feeds above all on named gossip; if one whispers “katawa-guruma” thrice, its flame licks the eaves and seeks the lattice gap. Elders avoided the name, saying “the one-wheeled fire” or “the wheel’s voice.” Still, a gate warded with waka or votive words can halt it; honoring the power of speech, it eases if the text is orderly and heartfelt for the child. In towns thick with rumor it grows strong, in towns that mind their words and households it wanes, a monster mirroring Kyoto’s temperament.

Typified by records tracing to Lake Biwa, it is a collective form of strange lights that cling in faint specks to rain cloaks, umbrellas, and garments on rainy nights. They carry no heat and increase in brightness and number when brushed at, yet disperse naturally when garments are removed, a flame is lit, or time passes. Names and interpretations vary by region, with some seeing them as spirits of drowning victims, others as animal tricks or natural bioluminescence. Rather than causing harm, they are said to bewilder and unsettle, and are often visible only to solitary individuals.

At the core of Abura-bō is the guilt of misappropriating oil meant for temple and shrine lamps, manifesting as a spirit flame. Early modern records and local lore place its appearances around the foothills of Mount Hiei and temple precincts across Ōmi, most often from dusk to midnight in late spring through early summer. It takes the form of a small orange to yellow fireball, or the shadow of a monk cradling an oil jar, following a set course over gates, halls, and pond embankments before vanishing. Its voice is uncertain, though some regional tales mention indistinct murmurings. Names vary by area—“Abura-bō,” “Oil Thief,” “Oil Returned”—all carrying a folk warning about taboos surrounding oil and the need for proper rites. Specific individuals or temple names differ across sources, but the strict management of lamp oil in temple society likely fostered these tales. Methods to calm it include sutra chanting, burial of offerings, and restoring lamp offerings, though no fixed formula is known.