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.

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.

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.

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.

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.

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.

Musashino accounts link Suribachiyama, Mujinakubo, Senzoku Pond, and Koike Pond with Daidarabotchi’s feet and staff. In the 1919 account, Senzoku Pond marks the staff; in an account printed in 1983, Koike Pond is the staff hole and Senzoku Pond the place where he urinated. Such variants make several “story maps” from the same uneven ground. Separate from the ponds’ natural formation, they show how local memory arranged the landscape.

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.

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.

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.