Fire Yokai and Ghost Lights |
Onibi, Kitsunebi and Shiranui in Japanese Folklore

Hitodama are small, floating balls of light seen at night, long interpreted as souls that have left the human body. Reports describe bluish-white, orange, or red hues, often trailing a tail and drifting low to the ground. While often confused with onibi or kitsunebi, hitodama specifically denote the luminous manifestation of a human soul and are linked to death and liminal moments. They appear frequently in classical literature, early modern essays, and regional lore, with sightings continuing into modern times.

Grave Fire is a type of ghostly flame that appears around cemeteries and old gorintō (five-ring pagoda gravestones). In Toriyama Sekien’s Konjaku Gazu Zoku Hyakki, flames blaze from a timeworn gorintō with damaged Sanskrit seed syllables amid an overgrown burial ground. Some interpret the missing syllables as leaving worldly desires unsevered, which flare up as fire. Early modern ghost tales describe it as a phosphorescent flame arising from blood or fat seeping from corpses or graves, drifting and wavering at night.

Battlefield Will-o'-Wisp refers to ghost lights that gather over killing grounds where many fell. They drift softly, and in great numbers cast a pale glow across the fields. Said to be fires exuded by the grudges of fallen soldiers and horses, they are depicted in Toriyama Sekien’s Konjaku Gazu Zoku Hyakki as flames rising from blood spilled on the earth. Reliable tales of harm are rare; witnesses are said to recite a Buddhist chant and quietly depart.

Shiranui is a mysterious light said to appear off the coast of Kyūshū, especially over the Yatsushiro and Ariake seas. On a calm night around the first day of the eighth lunar month, one or two 'parent fires' kindle offshore. They divide to either side and multiply until hundreds or thousands of lights stretch in a horizontal line. The display is difficult to see close to sea level but clear from higher ground, and the lights are said to recede when approached. Also called Thousand Lanterns or Dragon Lanterns, Shiranui was feared as a sign that fishers should not put to sea. It is now generally explained as an atmospheric optical phenomenon related to mirage formation.

Tsurube-bi is a mysterious fire that moves up and down from treetops at night like a hanging bucket. It appears in Toriyama Sekien’s Gazu Hyakki Yagyō, interpreted as the fiery apparition from Kyoto’s Saiin noted in Edo-period ghost tales. In Shikoku and Kyushu, it’s said to be a wood spirit turning into a bluish-white fireball that dangles from branches. The flames do not burn things, and faces of people or animals sometimes appear within. Considered a type of will-o’-the-wisp, it’s often reported on quiet mountain paths.

A nocturnal apparition in which a heron’s body appears to glow pale blue. Also called Goi no Hi and Goi no Hikari. Recorded in Edo-period picture books and essays, it was seen on moonlit and rainy nights. Often identified as the black-crowned night heron (goisagi); in flight it looked like blue flames, startling onlookers. Explanations include reflections from wet plumage or substances along the water’s edge, yet many locales remember it as a ghostly fire.

Ubagabi is a will-o’-the-wisp that appears on rainy nights, with traditions centered around Hiraoka in Kawachi and along the Hozu River in Tanba. It flies as a fireball about a foot across and is said to sometimes show the face of an old woman or the shape of a bird. Explanations tie it to the curse of an old woman who stole lamp oil from Hiraoka Shrine, or divine punishment upon a woman who drowned after discarding her child; the phenomenon is noted in old books and picture scrolls. Contact is considered a dire omen.

Furari-bi is a strange fire depicted in Edo-period yokai art, often shown as a bird wreathed in flames. Examples appear in Toriyama Sekien’s Gazu Hyakki Yagyo, Sawaki Suushi’s Hyakkai Zukan, and the anonymous Bakemono-zukushi. Explanatory notes are scarce, so its nature is unclear. Generally it is understood as a manifestation of unappeased spirits wandering as fire, with the birdlike visage serving as a symbolic form.

Sōgenbi is a monk’s ghost light associated with Mibu-dera in Kyoto and depicted by Toriyama Sekien in the *Gazu Hyakki Yagyō*. It is recognised by the tormented face of a monk floating inside a ball of fire. The name is also written Sōgen-bi, “Sōgen’s fire,” after the monk at the centre of the tale. In Toriyama Sekien’s *Gazu Hyakki Yagyō*, the apparition is not an anonymous glow: the face enclosed by flame makes the fire the visible fate of a person. According to the legend, Sōgen served at Mibu-dera’s Jizō Hall but stole lamp oil and offerings from the temple. After death, karmic punishment turned him into a will-o’-the-wisp. In the line of tales preserved in the *Edo Kaidan-shū*, including *Shin Otogi Bōko*, Sōgenbi is not a natural light but a sacred lamp defiled by theft and returned as punishment. Vengeful spirit, flame and temple ground meet in a distinctly Kyoto apparition.

Jiosenbi (lit. Jiosen Fire) is a mysterious fire said to appear at Izuminawate in Minakuchi, Omi Province. Jiosen was a candy-like sweet made by boiling down the roots of the Rehmannia plant (Jio), sold by peddlers during the Edo period as a confection that doubled as medicine. Legend has it that a man who made his living selling Jiosen was murdered at Izuminawate by bandits after his savings. His obsession with his money and his deep regret turned into a mysterious fire on rainy nights, floating and flying around a large tree called the Hizagashira Pine. Rather than the fire itself, the focus on the peddler's delusion transforming into fire shows the cause-and-effect narrative typical of early modern ghost fire tales.

Kazembō is a yokai depicted by Toriyama Sekien in Konjaku Hyakki Shūi: a monk-shaped will-o’-the-wisp said to appear at Toribe Hill, Kyoto’s historic cremation ground. Shown as a beggar-monk wreathed in flames and smoke, it is often interpreted as the spirit-fire of a monk who sought self-cremation for salvation but, shackled by earthly attachments, failed to pass on. Sekien’s image is the primary source; the name and appearance were later cataloged in yokai encyclopedias.

A mysterious ghostly fire said to drift along rainy nights like a lantern. Recorded in late Edo essays such as Kansō Sadan and Shoshū Saiyakuki Shōroku as observed in Ise. Those who carelessly approach are struck by an illness like an epidemic. If encountered, one should lie flat and let it pass before fleeing. It hovers roughly 12 to 36 inches above the ground.

Taimatsumaru is a fire-bearing bird yokai depicted in Toriyama Sekien’s Hyakki Tsurezure Bukuro. Shown as a raptor wreathed in flames from beak and talons, it casts uncanny light across the deep mountain night. Sekien links it in his notes to the glow of the “tengu pebbles,” interpreting it as a force that hinders ascetics in training. Its fire is not a practical torch but a delusive flame that leads night travelers astray. No specific historical locations of appearance are recorded.

A yokai appearing as a flaming ox-cart wheel with the face of a giant monk-like ogre set in its hub. Said to steal the souls of onlookers. It can be warded off by posting a paper on the doorway reading “This is the village of Katsumo.” Illustrated by Toriyama Sekien in Konjaku Gazu Zoku Hyakki, it is a key example in the lineage of wheel-yokai tales and is often discussed alongside Katawaguruma, with a common origin widely proposed.

Katawaguruma is a night apparition of a single ox-cart wheel wreathed in flames, racing down dark roads with a human face glaring from its hub. Recorded in early Edo-period kaidan and essays, it was feared to bring misfortune to those who saw it—and even to those who merely gossiped about it. Accounts differ on whether the face is male or female. Sightings are tied to Kyoto and Omi, and the creature appears in contemporary paintings. Scholars often discuss its connection to the wheel-demon Wanyūdō.

A yokai said to appear at funerals, funeral processions, and graveyards to snatch coffins and corpses. In the early modern period it was told as a hellish jailer or thunder god’s doing, stealing bodies amid black clouds and lightning. Later it merged with bakeneko lore, spreading the belief that an aged cat becomes a kasha and preys on the dead. Reports occur nationwide and are not strictly framed as moral retribution. Traditional countermeasures include blades, prayer beads, mounded earth, and constant vigil.

A smoke-born yokai depicted by Toriyama Sekien in Konjaku Hyakki Shūi. The “ra” in its name refers to a thin gauze, evoking a spirit of smoke that drifts like sheer fabric. Rooted in the age-old sense of presence within hearth and stove smoke, it appears as a formless, drifting entity. In sources, Sekien’s illustration is the primary standard; no specific harm or blessing is defined, and it’s understood as the very essence of smoke made animate.

A yokai illustrated in the mid-Edo period by Toriyama Sekien in Konjaku Gazu Zoku Hyakki. It appears as an infant that licks oil from household lamps. The motif draws on a local belief from Ōtsu in Ōmi: an oil seller who stole oil offered to a Jizō statue died and became a wandering fire. Sekien adapted that ghost-fire tale, embodying an obsession with oil in the form of a red baby.

Korōka is a yokai associated with stone lanterns, depicted in Toriyama Sekien’s Hyakki Tsurezurebukuro. It sits atop a stone lantern and breathes fire, likely visualizing the lantern’s flame as a spirit turned monster. Sekien alludes to battlefield will-o’-the-wisp tales but notes no classical source for a lantern’s flame becoming a yokai, making his image highly inventive. Later retellings sometimes describe lanterns that light themselves, though such claims are often disputed.

A type of onibi (will-o’-the-wisp) seen near rice field ridges, river embankments, and graveyards. A lantern-sized flame drifts about a meter above the ground and vanishes when approached. In Shikoku it’s often blamed on foxes or tanuki, with names and traits varying by region. Sometimes it appears in strings along night roads and is linked to ominous signs like sudden deaths or fevers, yet its true nature remains unknown.

A yokai depicted by Edo-period artist Toriyama Sekien in Konjaku Hyakki Shūi. It rises from beneath the floorboards, licking the oil of an andon lamp and disrupting night work. Sekien notes it as the spirit of someone who shirked duties in life, becoming a “Himamushi Night Nyūdō” after death to lick lamp oil and hinder late-night tasks. The name is linked to a visual wordplay on “Hemamushi-nyūdō,” commonly read as a moral against laziness and sloth.

A yokai depicted by Toriyama Sekien in Konjaku Gazu Zoku Hyakki: an old woman who blows out lights. She is said to snuff lanterns, andon lamps, and candle flames from a distance with a single puff, interpreted as an ominous, yin presence that abhors the cheerful, yang nature of fire. Oral accounts are scarce, and scholars often view the figure as largely Sekien’s invention. Later books and picture chapbooks show name variants (“Fukkeshi Baba,” “Fukikeshi Baba”) and link her to tales of lamps going out at parties or on night roads.

Basan is a phantom bird from Iyo, also called Basabasa or the Dog Phoenix. It sports a red comb and breathes vivid red fire, yet the flames are like foxfire—cold and unable to burn. Said to lurk in deep bamboo groves, it rarely shows itself. On late nights it may swoop over villages with a loud rustling of wings, only to vanish at once. It startles people but causes no harm. Edo-period curiosa and picture scrolls record its image and traits.

Minobi is a will-o’-the-wisp–like fire said to appear as tiny lights dotting a straw rain cloak on boats crossing Lake Biwa, especially on rainy nights in the rainy season. It neither burns nor spreads; if the cloak is removed, the lights vanish. Brushing at them makes them multiply, glittering like starlight. Some traditions call it the manifestation of drowned spirits, while modern views liken it to a kind of gaseous luminescence; similar reports exist across Japan.

A haunting said to appear at cremation grounds (sanmai-ba) after many corpses are burned. The amassed dead form a humanlike figure; in some regions it appears as a giant nyūdō. It performs ominous acts tied to death—beating clappers at night or driving stakes into the cremation grounds—to frighten people. It reportedly loses power and vanishes when it crosses running water.

Kagutsuchi (Hinokagutsuchi-no-kami) is the personification of fire, a fierce deity whose very birth brings about death and rebirth. In the "Kojiki," Izanami dies after her genitals are burned giving birth to the fire god Kagutsuchi, and the enraged Izanagi slashes Kagutsuchi to pieces. From the blood and body parts of the slain god, even more deities are born. Fire is essential for life, but in the context of childbirth, it is dangerous enough to lead the mother goddess to her death. This duality makes Kagutsuchi not just a god of fire, but a turning point in mythology. The "Nihon Shoki" also contains variant traditions regarding the birth of the fire god and the death of Izanami. Throughout the Kiki mythology, fire is treated as a force that connects the end of creation with the beginning of Yomi (the underworld). Following Kagutsuchi, the story progresses to the visit to the underworld, ritual purification (misogi), and the birth of the Three Precious Children. In other words, the fire god is an entity that temporarily destroys the order of the world's creation, triggering a chain of death, defilement, purification, and the birth of the sun goddess. In the yokai guide, while treated as a divine spirit, he has strong connections to deities of calamity, fire prevention beliefs, and mountain worship. In later beliefs, Kagutsuchi is worshipped under names like Homusubi-no-kami as a god of fire prevention and protection against fires. The Atago belief centered at Mt. Atago in Kyoto and the Akiha belief represented by Akihasan Hongu Akiha Shrine are major pillars of folk religion where people fear fire yet pray to it for protection. It is not a contradiction that the god who creates fire also becomes the god who quells it. Entrusting uncontrollable power to the deity of that very power is the depth of Japanese fire worship. Compared to related fire anomalies, Kagutsuchi operates on an entirely different scale. While Kitsunebi (foxfire) and Shiranui are mysterious lights seen by human eyes, Kagutsuchi is a fire that alters the structure of the mythological world. He is not a ghost story about seeing fire, but the catalyst through which the land of the dead, ritual purification, and the birth of the sun goddess continuously unfold. Therein lies his high rank as a divine spirit.