the oil presser
RegionalOn the Kusazumigoe pass in Amakusa, a grandmother tells her grandchildren: "long ago, an abura-sumashi used to appear here" — and a voice answers from the empty pass: "I still do!" That perfectly timed punchline is essentially the entire attested folklore of the abura-sumashi — and it's enough: the yokai as jump-scare with impeccable comedic instincts.
the contrary demon
ChronicleThe amanojaku is pure contrariness with a body: order it, and it does the opposite; it "reads people's hearts and plays pranks in opposition to them."
the hag who argued with a volcano
RegionalTakayama's resident wonder-worker: Arikura-no-baba — "the ant-saddle hag" — an old woman of supernatural powers: healing, divination, weather-work.
the changing cat
RegionalThe bakeneko is the house cat under suspicion: one tail (unlike the nekomata's fork), and a repertoire of unsettling domestic behaviors — licking the lamp oil, speaking, dancing with a napkin on its head.
the dream-eater
ChronicleThe baku is the gentlest creature in the whole night parade: a chimera assembled — the legend says — from "the spare pieces that were left over when the gods finished creating all other animals," whose job is to eat nightmares.
the cold-fire rooster
RegionalIn the remote bamboo groves of Iyo lives a chicken the size of a turkey, comb blazing red, that breathes fire which is cold — a glowing spectral flame that ignites nothing.
the spirit of the banana plant
ChronicleThe banana plant's spirit, walking as a person — Sekien, Konjaku Hyakki Shūi.
the tanuki in the teakettle
RegionalThe tanuki-kettle, in its two canonical shapes:
the landscape giant
ChronicleThe giant so large the landscape is his biography: lakes are his footprints, hills are his discarded shell-heaps, and one clumsy afternoon of comparing mountains explains why Mount Tsukuba has a split peak.
the boss of Sado
RegionalSado Island has tanuki lore and — famously — no fox lore, and folk tradition knows exactly whose doing that is: Danzaburou, the island's boss tanuki, who kept the kitsune out permanently by out-conning the con artists.
the demon emperor
RegionalThe angriest ghost in Japanese history was an emperor.
the man who put demons on payroll
ChronicleA 7th-century ascetic (traditional dates 634–701), exiled to Izu Ōshima in 699 for — per the official Shoku Nihongi — "bewitch the people with his words".
the wind cat
Edo catalogA small leopard-marked cat-thing that rides the wind between trees — "jumping very high with the wind, crossing cliffs" — the fūri (Chinese fengli, "wind leopard-cat"), documented in the 10th-century Taiping Yulan and the Bencao Gangmu, carried to Japan by the Wakan Sansai Zue and Sekien's plate.
the old woodcutter who fells nothing
RegionalIn most of Shikoku the phantom tree-felling (tengu-daoshi) has a culprit: the furusoma — "the old woodsman" — "the ghost of a lumberjack that died after being crushed by a felled tree," in the fuller telling while cutting illegally.
the old camellia's spirit
RegionalThe camellia drops its flowers whole — the entire head falling at once with a soft weight, not petal by petal.
the two-mouthed woman
RegionalA woman with a second mouth hidden under the hair at the back of her skull — a mouth that must be fed, that mutters and demands, whose hair moves like tendrils to feed it.
the demon of Gangō-ji
ChronicleAt Gangō-ji temple in Nara, in the Asuka period, attendants at the bell tower kept dying in the night.
the rattling giant skeleton
Modern inventionA skeleton ten-plus meters tall, assembled from the massed bones of the unburied — battlefield and famine dead — walking at 2 a.m., teeth clattering gachi gachi, biting the heads off travelers.
the tengu you don't name on the mountain
RegionalA widespread alternate name for the tengu class — written "dog-guest" (狗賓) — with the interesting material not in the being but in how people handled the word and the appetite:
the white snake, sacred by pigment
RegionalThe white snake as institution: venerated as Benzaiten's messengers and wealth-bringers, enshrined at temples and shrines nationwide, with the standing folk terms — "killing them brings misfortune...
the beast that knows every demon
Edo catalogThe hakutaku is the patron beast of this very project: the Chinese Bai Ze, who — the legend says — met the Yellow Emperor and dictated a complete catalog of every ghost and demon in the world (the Bái Zé Tú).
the mask that cries when it looks down
Edo catalogThe most famous face in the tradition is carved: hannya, the Noh mask of the jealous woman become demon — bull horns, metal eyes, the leering mouth.
the dog who broke the sacrifice
RegionalThe tradition's greatest dog.
Japan's bigfoot
RegionalIn the early 1970s, around Mt.
the hunger that walks the pass
RegionalOn a mountain pass, a healthy traveler is struck — mid-stride — by hunger so total the legs stop working: "acute hunger, fatigue, and numbness of the limbs...
the laughing ape that demands brides
RegionalA monstrous ape of superhuman strength that "often abduct women" — the villain behind Japan's classic human-sacrifice tale-type: the village that must yearly present a daughter to the mountain's "god," until a traveler (and, in the famous telling, the black dog Shippeitarō) exposes the god as a beast and kills it.
the fire rat and the robe that shamed a suitor
RegionalFrom Chinese marvel-texts (Shenyi Jing): a rat that lives "in the fire within an inextinguishable tree in southern mountains" — accounts run to 250 kg, with "hair resembling silk threads".
the phoenix
ChronicleThe hō-ō is the fenghuang, China's phoenix, resident in Japan since antiquity as the arrival announcement of good government: like the kirin, it appears when a sage rules — the auspicious beasts as heaven's approval ratings.
the arm at Rashōmon
ChronicleShuten-dōji's lieutenant — and the survivor: after Mt.
the rice-bearer and the foxes
RegionalThe most-worshipped deity in Japan — roughly 40,000 of Japan's 120,000 shrines, over a third of all, are Inari's — and the reason this bestiary's fox entries exist.
the 808 tanuki of Matsuyama
RegionalMatsuyama Castle had a supernatural garrison: Inugami Gyōbu, the great bake-danuki of the Kumayama cave, commander of eight hundred and eight tanuki, holder of a court-style title (Gyōbu, "penal affairs") granted by the castle's own lords — the castle guardian as feudal appointee.
the one-inch boy
ChronicleThree centimeters of samurai: born to a praying couple by grace of the Sumiyoshi gods, Issun-bōshi sails to the capital in a rice bowl with a chopstick oar, a needle for a sword, a straw for its scabbard — the tale's genius is that inventory.
the snake-bone hag
ChronicleAn old woman with a great serpent coiled around her body — Sekien, Konjaku Hyakki Shūi (1781).
the tree of laughing faces
ChronicleA tree whose flowers are human heads.
the entangling bride
RegionalThe jorōgumo is the tsuchigumo's seductive counterpart: a spider that at great age (folk figure: 400 years) takes the form of a beautiful woman and hunts men with intimacy instead of webs — though the webs come too.
the vampire tree
Modern inventionA tree grown on an old battlefield, fed so long on the blood beneath it that it thirsts: branches seize travelers, "changing its branches into the shape of a tube," and drink.
the corpse-stealer
RegionalThe kasha comes to funerals.
the river otter
RegionalThe forgotten third trickster.
the aunt who owns the woods
Regional"The old woman who owns the wooded plain" — also rendered "swamp aunt": a wild-haired demonic woman of tree hollows and riverbank willow groves.
the demon boy who hid inside a cow
Edo catalogThe demon boy of the Raikō cycle — the tradition's most cinematic assassination attempt.
the demon women (class page)
RegionalThe class page for the tradition's transformation-women: kijo — "demon women," those "who transformed into oni through karma and resentment".
the children of the trees
RegionalThe Kinki mountains' resident children: kinoko — "the children of the trees" — told in Nara's Yoshino and in Hyōgo: figures "as children from two to four years of age," dressed "in clothes made of leaves, or blue," classed among the yamawaro mountain-child family.
the golden boy
RegionalA red-skinned super-child on Mt.
the auspicious beast
RegionalThe kirin is the anti-yokai: where the parade's creatures mark disorder, the kirin appears only at moments of perfect order — "with the imminent arrival or death of a sage or illustrious ruler".
fox possession (the case history)
ChronicleThe fox-possession dossier, promoted to its own entry because it has what almost nothing else in the tradition has: a complete arc from 9th-century scripture to 19th-century psychiatry to living memory.
the serpent of Dōjō-ji
ChronicleThe traveling monk Anchin promised the young woman he'd return; he lied, and fled.
the man the oni danced with
ChronicleThe tradition's gentlest oni story.
the hag of the temple kitchen
Edo catalogAn old woman spinning thread beside a resting cat, in a temple's kuri — the kitchen/storage quarters — Sekien, Konjaku Hyakki Shūi (1784).
the old man who cries like a baby
RegionalA baby crying alone in mountain wilderness.
the thousand-tale warehouse (source anchor)
ChronicleWhere the tradition goes when it needs a tale's oldest telling: the Konjaku Monogatarishū — "over one thousand tales," early 12th century, anonymous, 28 of 31 volumes surviving — organized as Buddhism's eastward journey: India, China, Japan.
the fox in the pipe
RegionalA fox small enough to live in a bamboo tube — accounts give 36–39 cm bodies, weasel/squirrel comparisons, one description of "a cat-like face, otter-like body, grayish fur, and a thick tail".
the prophesying calf
RegionalA calf is born with a human face.
the man who became an explanation
RegionalKūkai (774–835): founder of Shingon esoteric Buddhism, student of Huiguo in Tang China, builder of Kōyasan and Tōji, calligrapher-poet-engineer — "among Japan's most accomplished individuals" by any accounting.
the hag of Adachigahara
RegionalOn the Adachigahara moor (Fukushima) stood a lone hut, an old woman, and a room she forbade her guests to open.
the nine-headed dragon, three conversions
RegionalNine heads, three addresses, one arc — the dragon subdued into office:
the bean tanuki of the breweries
RegionalThe small tanuki of western Japan — and the sake industry's resident spirit.
the old man at the crossroads
ChronicleAn old man with a heavy staff, met on desolate roads and crossroads in harsh weather; the encounter itself causes illness — Sekien, Konjaku Gazu Zoku Hyakki (1779).
the peach boy
RegionalThe most famous departure in Japanese storytelling: a boy born of a peach, armed with kibi dango, recruiting a dog, a monkey, and a pheasant into service — one dumpling each — for the conquest of Onigashima, the demons' island.
the lucky tea kettle
Edo catalogThe kindest famous story in the tradition.
the badger question
RegionalThe mujina is the yokai whose central mystery is what animal it even is: badger in one province, tanuki in the next, sometimes a palm civet — the word slides regionally across species, and that slippage reached Japan's Supreme Court.
the visiting demon of New Year's Eve
RegionalNew Year's Eve, Oga Peninsula, Akita: masked figures in straw coats storm the houses shouting "泣ぐ子は居ねがー" — "Any crybabies here?" — hunting the lazy and the whining, scolding children, driving out misfortune.
the earthquake catfish
RegionalUnder the islands of Japan, in the mud, lies a catfish the size of the country's misfortune.
the forked-tail cat
ChronicleThe nekomata is the older and darker of Japan's two great cat yokai: first recorded not as superstition but as news — a beast killing people near Nara in 1233 — and later as the fate awaiting any house cat kept too long, its tail splitting in two as it learns to walk upright, speak, and dance with the dead.
the flesh-man who pointed at heaven
RegionalApril 4, 1609, Sunpu Castle — the retired shōgun Tokugawa Ieyasu's own grounds: a humanoid "lump of meat, with four limbs but no fingers," standing and pointing to the heavens with its arms.
the field gun that fires bats
Edo catalogA tanuki- or flying-squirrel-like beast of the northern mountain valleys that attacks at dusk to drink blood — and its method is the tradition's strangest weapon: it obscures the victim's sight by "releasing bat-like creatures from its mouth to cover the person's face" — Ehon Hyaku Monogatari (1841).
the field hammer
ChronicleA snake shaped like a hammer-head or mallet: thick in the middle, blunt, mouth where a face should be, rolling downhill at travelers.
the rock that yawned
Edo catalogA toad some eight feet long in Iwakuni Mountain, Suō (Yamaguchi), that "exhaled rainbow-like vapor to inhale birds and insects" — recorded in Ehon Hyaku Monogatari and Hokuetsu Kitan.
the great head
Picture onlyA face — only a face — vast as weather: a married woman's head with blackened teeth (ohaguro) filling the sky, or an old woman's face crammed into a storeroom, sticky to the touch.
the god who died twice and married the storm's daughter
ChronicleThe kind youngest brother of the Inaba hare tale pays for the princess's choice with two murders — his own: the brothers roll a red-hot boulder down a mountain disguised as a boar (he catches it; he burns to death) and later snap him inside a wedged log.
the snake in the comb box, the mountain with no shrine
ChronicleThe god of Mount Miwa — worshipped, uniquely, as the mountain: Ōmiwa Shrine has no honden; "the mountain itself serves as the sacred space".
the demon
ChronicleIf the kitsune is the great shapeshifter of Japanese folklore, the oni is its great embodiment of brute otherness: horned, huge, iron-clubbed, standing at the gate between this world and punishment.
one gulp of the oni
Edo catalogNot a creature but a fate: to be eaten by an oni in a single mouthful — completely, instantly, silently.
the demon bear of Kiso
Edo catalogAn ancient bear of the Kiso Valley turned yokai: it comes down from the mountains at night, "walks upright like a human," and carries off cattle and horses "back to the mountains for consumption" — Ehon Hyaku Monogatari (1841).
the Kantō fox that marks a family
RegionalThe fox-spirit of Kantō's mountain villages — Chichibu (Saitama), Okutama, Gunma, Tochigi, Ibaraki, into Nagano's Saku district.
the face-powder hag
Picture onlyA heavily stooped old woman under "a large torn umbrella, holding a walking stick in one hand and a sake bottle in the other" — Sekien, Konjaku Hyakki Shūi (1784).
the demon of Suzuka Pass
ChronicleThe third seat of medieval Japan's "three great evil yokai" (with Shuten-dōji and Tamamo-no-Mae — the grouping noted via Komatsu in our shuten-dōji entry): Ōtakemaru, the storm-wielding oni of the Suzuka Mountains, who robbed imperial tribute on the pass between capital and east — the one place all wealth had to walk.
the mountain father who priced mortality
ChronicleThe great mountain god — father of the tradition's most consequential wedding offer.
the god at the crossroads
ChronicleWhen the heavenly grandson Ninigi descended to rule the earth, one being stood waiting at the crossroads of heaven and earth: a towering figure, ruddy-faced, bearded, jeweled spear in hand — and with the long nose that would echo down Japanese iconography for a millennium.
the mind-reader of the mountains
Edo catalogYou're at your mountain campfire and an ape-thing sits down across from you — and speaks your thoughts a beat before you finish thinking them.
the thousand wolves and their ladder
RegionalNight.
the fish that guards the roofline
RegionalThe composite beast on Japan's castle roofs: fish body, dragon (earlier tiger) head, upright tail, spiked back — and one job.
the tanuki who died for the theater
Edo catalogThe third of the three famous tanuki, and the tradition's most touching death.
the higher you look, the taller it gets
RegionalWestern Japan's growing roadman: meet it at night and it gains height as your gaze rises; the escape is optical — "the creature grows taller as you look up, but becomes smaller when you look down," shrinking to nothing as you lower your eyes; some tellings prescribe looking at it between your own legs.
the death god who is younger than he looks
Edo catalogThe world's most famous "ancient Japanese death god" is an Edo invention.
the lion that visits eight thousand ways
RegionalThe danced lion: performers in the great lacquered head and body-cloth, visiting door to door at New Year and festival — Japan's "most numerous folk performing art," with roughly 8,000 documented traditions (Toyama alone maintaining 1,170 active sites).
the conch working its way up to dragon
RegionalA conch shell that serves a nine-thousand-year apprenticeship: "3,000 years in mountains, 3,000 in villages, and 3,000 in the sea," then transforms into a dragon — Ehon Hyaku Monogatari (1841).
the drunkard boy, king of oni
RegionalThe single greatest yokai narrative in the canon: an oni king on Mt.
the king of the tengu
ChronicleThe tengu's roster has a crown, and it sits on Mt.
the bell princess
Edo catalogA woman whose face is a bell, crowned with the kagura-suzu — the tiered ritual bell-cluster shaken in shrine dance.
the field god with a fixed timetable
ChronicleThe yama-no-kami's downhill season, with dates: in Niigata's records the god arrives March 16 and departs October 16, returning heavenward November 16 — a deity with a train schedule, welcomed and seen off annually by the villages that host the growing season.
the nine-tailed courtesan
ChronicleThe kitsune legend at imperial scale: a peerless courtesan at the Heian court who is in truth a golden nine-tailed fox on her third civilization.
the shapeshifting raccoon dog
ChronicleThe kitsune's comic rival.
the giant washing his hands in the sea
RegionalA giant straddling the mountains of Sanuki — feet three ri (7 miles) apart — bent over the Seto Inland Sea, washing his hands in "the bay extending from Takamatsu to Marugame" — Ehon Hyaku Monogatari (1841).
the heavenly dog
ChronicleThe tengu is Japan's mountain lord: a Chinese "celestial dog" that arrived as a comet omen, grew wings and a beak, made war on Buddhism, then rose — by way of the mountain-ascetic imagination — into a red-faced, long-nosed demigod who teaches swordsmanship, punishes arrogance, and owns the peaks.
the tree that falls and isn't there
RegionalNight in the mountains: axe-strokes, the creak, the thunderous crash of a great tree coming down — and in the morning, no stump, no trunk, nothing felled.
stones from the empty sky
Edo catalogStones fall out of a clear sky — as if thrown, from nowhere findable.
the trickster who paid, and prophesied
ChronicleThe Kojiki's beloved beast-fable, and the tradition's cleanest trickster-morality tale.
the earth spider
ChronicleThe tsuchigumo is a yokai with a paper trail into real history: before it was a giant spider, "earth spider" was the court's slur for defiant local clans — people who "hide in the ground."
the crane wife
ChronicleA man frees a crane from a snare.
the legend of the abandoned old
RegionalThe darkest theory in the tradition — that the yamauba is the memory of old women abandoned in the mountains — rests on ubasute, and the scholarship's finding must lead the entry: ubasute "is the subject of legend, but...
the ox demon
RegionalAn ox's horned head on — depending on the region — a spider's body, an oni's frame, or (in one Izumo tradition) a shining white butterfly.
the god of the pulled-back hair
ChronicleA female ghost-figure with a single eye atop the head, materializing behind you to tug your back hair — Sekien, Konjaku Hyakki Shūi (1784).
the rider on the headless horse
RegionalAwa's one-eyed giant demon on a headless horse, abroad only on the yagyō days: New Year's Eve, Setsubun, kōshin nights, and the almanac's danger dates — "specific occasions when people were warned to avoid nighttime travel".
the field fox at the bottom of the ladder
RegionalThe wild fox — yako, nogitsune — as distinct from the shrine fox.
the mountain god who commutes
RegionalThe deity behind the tradition's whole mountain wing — with a commute: in spring the mountain god descends to become the field god (ta-no-kami), returning uphill in autumn — one deity, two seasonal job titles, the agricultural year as her itinerary.
the mountain man
RegionalA huge, hairy, half-naked man of the deep mountains who — this is the tradition's signature — works: carrying loads, stripping bark, helping with farm labor, "in exchange for tobacco or food rather than money".
the echo
Edo catalogShout into a valley and something shouts back.
the breath-drinker
Edo catalogThe bat's final form.
the mountain grandfather
RegionalA gray-furred old man of the Shikoku mountains, hip-high, on one leg — with a voice that can "shake the sky and earth, make leaves fall, and make the nearby trees and rocks move"; accounts claim burst eardrums and deaths by shout alone.
the eight-headed serpent
ChronicleThe founding monster of Japanese myth: eight heads, eight tails, a body spanning eight valleys and hills, moss and cypress growing on its back, belly ever bloody — devouring one daughter of Izumo per year until only Kushinadahime remained.
the mountain crone
RegionalThe yamauba is the mountain's old woman: golden-white unkempt hair, filthy tattered kimono, and — in the darker tellings — a second mouth hidden under the hair on top of her head.
the mountain child
Edo catalogThe kappa entry's flagship claim — one being, river in summer, mountain in winter — gets its mountain half.
the woman under the willow
Edo catalogA woman holding a child beneath a willow — Ehon Hyaku Monogatari (1841).
the loyal illusionist
ChronicleThe third famous tanuki completes the set — and joins the tradition's deepest current.
the horned snakes at the edge of the fields
ChronicleFrom the Hitachi Fudoki (8th century): the yato-no-kami — horned snake-deities of the marshlands — with the tradition's harshest look-tariff: "witnessing these creatures would destroy one's entire household lineage".
the word itself (master definition page)
RegionalTwo kanji, each meaning "suspicious, doubtful" — from Chinese yāoguài, but grown into meanings the Chinese word never held.