Noppera-bō

のっぺらぼう

A human-looking figure whose face vanishes when a traveler comes close.

  • Street · Road
  • Harmful

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Rokurokubi

轆轤首(ろくろくび)

A seemingly human figure whose neck stretches at night—and one name that once covered more than one uncanny form.

  • House
  • Mixed

Danger 3/5 Editorial rating Danger rating 3 out of 5. This is an editorial rating, not a folklore measurement.

Kamaitachi

鎌鼬(かまいたち)

In Nagano in 1955 the kamaitachi was a weasel so fast that no one had ever seen it — known only by the clean cut it leaves on a stumbling traveler's shin.

  • Mountain · Road
  • Harmful

Danger 3/5 Editorial rating Danger rating 3 out of 5. This is an editorial rating, not a folklore measurement.

Wanyūdō

輪入道(わにゅうどう)

In Toriyama Sekien's 1779 picture book, a single ox-cart wheel rolls through the night by itself — and anyone who sees it is said to lose their soul.

  • Street · Road
  • Harmful

Danger 4/5 Editorial rating Danger rating 4 out of 5. This is an editorial rating, not a folklore measurement.

Kodama

木霊(こだま)

Kodama can mean both a presence within an old tree and the echo that returns from a mountain — but Japanese tradition gives it no single fixed body.

  • Forest · Mountain
  • Neutral

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Nekomata

猫又(ねこまた)

A 1931 Kagawa record describes an aging cat whose tail divides in two and that rises to dance on its hind legs.

  • House · Mountain
  • Mixed

Danger 3/5 Editorial rating Danger rating 3 out of 5. This is an editorial rating, not a folklore measurement.

Mokumokuren

目目連(もくもくれん)

Rows of human eyes appear across old shoji in Toriyama Sekien's 1781 picture-book image.

  • House
  • Unknown

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Ushi-oni

牛鬼(うしおに)

Toriyama Sekien's 1776 print shows a bull-like head on a squat clawed body at the water's edge — and tells us nothing else about it.

  • Coast · Sea
  • Unknown

Danger 3/5 Editorial rating Danger rating 3 out of 5. This is an editorial rating, not a folklore measurement.

Kitsune

狐(きつね)

A 1930 account from Toyooka describes blurred blue or red foxfire moving restlessly from beyond the mountain to somewhere close by.

  • Mountain · Forest · Road
  • Unknown

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Nobusuma

野衾(のぶすま)

A 1938 Tokyo record describes something like a flying squirrel that drifts down onto a traveler and covers the eyes and mouth — and stops there.

  • Forest · Road · Mountain
  • Harmful

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Hakutaku

白澤(はくたく)

A beast from Chinese legend that named every harmful thing in the world for the Yellow Emperor, and whose image — nine eyes, six horns, a human face — was carried by Edo travelers and set beside pillows during the cholera epidemic of 1858.

  • House · Road
  • Helpful

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Kawa-akago

川赤子(かわあかご)

Toriyama Sekien drew an infant-shaped creature rising from the water plants of a mountain river in 1779, watching a man on a raft — and admitted in the caption that he was guessing about what it was.

  • River
  • Unknown

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Suiko

水虎(すいこ)

A Chinese pharmacological encyclopedia describes a river creature the size of a small child, armoured in scales that arrows cannot pierce, which keeps its body underwater and lets only its two tiger-pawed knees break the surface.

  • River
  • Harmful

Danger 3/5 Editorial rating Danger rating 3 out of 5. This is an editorial rating, not a folklore measurement.

Shin

蜃(しん)

Old records describe a creature at the coast whose breath rises over the water and takes the shape of towers. The sources never agreed on what it was — and the Japanese word for a mirage is still its name.

  • Sea · Coast · Sky
  • Neutral

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Yamabiko

山彦(やまびこ)

The echo in a Japanese valley was heard as an answer before anyone drew the thing answering — and when painters finally gave it a body, they produced a small animal that is neither quite a dog nor quite a monkey.

  • Mountain · Forest
  • Unknown

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Satori

覚(さとり)

Sekien's 1779 entry describes a black, long-haired creature of the deep mountains that understands speech, reads what you are thinking, and leaves the moment you decide to kill it — and a later tale defeats it with something nobody thought at all.

  • Mountain · Forest
  • Neutral

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Akaname

垢嘗(あかなめ)

Sekien drew a crouching figure with a long tongue in a bathhouse in 1776 and called it the grime-licker. He wrote nothing else about it — and everything you have been told about dirty bathrooms was added afterwards.

  • House
  • Neutral

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Hone-onna

骨女(ほねおんな)

Sekien drew Hone-onna in 1779 as an old skeleton carrying a peony lantern, and his caption names the 1666 tale behind it: a widower's night visitor whom only an outsider saw for what she was.

  • House · Street
  • Harmful

Danger 3/5 Editorial rating Danger rating 3 out of 5. This is an editorial rating, not a folklore measurement.

Tenome

手の目(てのめ)

Sekien's 1776 plate shows an elderly blind figure with a biwa on his back, holding out two palms, each with an open eye. He gave it a name and nothing more; the story of a murdered man hunting his killer came later.

  • Field · Road
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Tenjō-sagari

天井下り(てんじょうさがり)

In 1779 Sekien drew an old woman hanging upside down from the ceiling, and wrote a caption that is mostly a joke — about a demon who once escaped through a roof, and a phrase for knocking someone flat.

  • House
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Keukegen

毛羽毛現(けうけげん)

Sekien drew Keukegen in 1781 as a small creature covered in long hair, and spent his caption on its name — which, written another way, means rarely there and rarely seen. The damp houses and disease came later.

  • House
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Ao-bōzu

青坊主(あおぼうず)

In a 1984 record from Miai in Kagawa, a girl carrying lunch to her family's mountain field met Ao-bōzu, the blue monk. He asked her one question. She said no, and he was gone.

  • Mountain · Road · Field
  • Harmful

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Biwa-bokuboku

琵琶牧々(びわぼくぼく)

In 1784 Sekien drew a blind biwa priest with a biwa for a head, feeling his way under a willow. His caption names two legendary court lutes, Genjō and Bokuba, and builds the creature's name out of one of them.

  • Road · House
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Koto-furunushi

琴古主(ことふるぬし)

Sekien's 1784 Koto-furunushi is an old koto with a face and strings like wild hair. His caption says why it appeared: after Yatsuhashi changed the music, the old Tsukushi koto survived only as a name, and it came to make its grudge known.

  • House
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Boroboroton

暮露暮露団(ぼろぼろとん)

Sekien's 1784 Boroboroton is a worn, patched futon standing upright with cotton spilling out like hands. His caption gets there through wandering Zen mendicants, an old poetry contest, and one word that means both.

  • House
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Kyōrinrin

経凛々(きょうりんりん)

Sekien's 1784 Kyōrinrin is a figure built from sutra scrolls and folded scripture. His caption wonders whether these are the scriptures thrown away by the monk Shubin, whose curse on Kūkai turned back on himself.

  • Temple or shrine · House
  • Unknown

Danger 2/5 Editorial rating Danger rating 2 out of 5. This is an editorial rating, not a folklore measurement.

Seto-taishō

瀬戸大将(せとたいしょう)

Sekien's 1784 Seto-taishō is a warrior assembled from sake flasks, plates, bowls, a teapot, and a kettle, carrying a spear tipped with a vase. Its caption is a chain of puns on Cao Cao, Guan Yu, and the names of Japanese pottery.

  • House
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Yanari

鳴屋(やなり)

Sekien's 1776 plate shows a crew of small oni at the posts and under the veranda of a wooden house, pushing at the timbers. He named them for the sound a house makes at night and wrote nothing else.

  • House
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Otoroshi

おとろし

Otoroshi appears in a 1737 scroll and in Sekien's 1776 book as a hunched, hairy creature — on top of a torii in Sekien's version. Neither says what it does. The story about it dropping on the impious was read out of the picture later.

  • Temple or shrine
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.

Shōkera

しょうけら

Sekien drew Shōkera in 1776 as a clawed, long-limbed figure clinging to a roof and peering in through the skylight. The plate gives a name and nothing else: no purpose, no victim, no reason it is looking.

  • House
  • Unknown

Danger 1/5 Editorial rating Danger rating 1 out of 5. This is an editorial rating, not a folklore measurement.