The nurikabe is a yokai whose name means “plaster wall” due to its ability to change into a tall invisible wall at night, confusing travelers. Some say poking on the bottom left of the wall will make it disappear, while others maintain it cannot be passed. Image: Bakemono No E, 1802
Umibozu is a sea monster yokai who creates storms and breaks ships. Often appearing at night, the yokai will sometimes request a barrel from sailors, who would give a bottomless barrel so it wouldn’t drown them. In some regions, fishers sacrificed their first catch to the gods to prevent Umibozu’s appearance. Images: Bakemono no e, 18th Century & The sailor Tokuso and the sea monster by Utagawa Kuniyoshi, 1845
Ubume is a yokai that’s a ghost of a pregnant woman. She appears as a woman carrying a baby who hands the child off before vanishing. The recipient soon finds the baby is actually a heavy rock or bundle of leaves. To prevent women from becoming Ubume, their unborn child was removed and placed beside them in their grave. From Bakemono No E
Uwan is a yokai who loudly says its own name (like a pokemon) with a disembodied voice, causing people to lose sleep. Teeth blackening was popular among noblemen and the warrior class in medieval Japan, so his black teeth may signify that he was originally one of them. From: Bakemono No E, 18th century
Otoroshi is a long haired yokai who perches on the top of roofs and temple gates in Japan to wait and pounce on anyone who tries to enter with an evil soul. It mauls and eats the wicked when not snacking on small birds. Image: Bakemono no e, 17th Century
Here’s one yokai you don’t want to help with your spring cleaning: the Akaname is goblin-sized creature, with slimy black hair, from Japanese folklore whose tongue is twice as long as its height—that it uses to lick toilets. Image: Edo shokoku hyaku monogatari, 17th Century
Nure-onna (“wet woman”) is a yokai found in rivers and the ocean. It helps a fellow water monster, the ushi-oni, to hunt humans. It hands the victim a baby that turns into a heavy rock, pulling them into the water where the ushi-oni devours them. Image: Toriyama Sekien, 1776 & Sawaki Suushi, 1737
A nuppeppo is a wrinkly, featureless yokai with powder-white skin that smells of rotting flesh. It’s a harmless, solitary creature that can be found in deserted towns, graveyards, and temples. Some say eating a nuppeppo will grant eternal youth. Image: Hyakkai Zukkan
