Keukegen

Also Known As: 毛羽毛現; glossed in its own caption as 希有希見, “rarely seen”, and written 希有希現 in some later books; read けうけげん or けうげげん
Region/Culture: East Asia
Mythos: Japanese Mythology
Primary Type/Nature: Fairy Folk and Spirit Beings
Mythical Attributes: Hair covers the whole of it, which is the single quality its only Edo-period source thinks worth recording, along with the claim that almost nobody ever sees it.
Role in Mythos: It is one of the creatures Toriyama Sekien drew into his 1781 picture book without any known folk tradition behind it, and it has been earning a reputation ever since.
Relation to Humans: Sekien puts it in a garden, beside a household water jar, close enough to the veranda that someone would have to walk past it. Twentieth-century writers gave it the habit of nesting under damp floorboards and sickening the people overhead, and that is the version most readers meet first.

The water jar sits on its stone with the lid on straight. A long-handled dipper leans against the leaves beside it, a lantern hangs from its chain at the edge of the veranda, and the shōji are drawn. Everything in the picture is where a careful household would put it. Then the eye travels past the jar and finds that the shrubbery has grown a face. Two round pale eyes and a small blunt nose, set high in a standing heap of black hair that falls all the way to the ground.

That is the whole of it. One woodblock page, printed in 1781 in the third of Toriyama Sekien’s illustrated yokai books, the Konjaku Hyakki Shūi, in the volume called Rain. Sekien gave the creature a name, a single line of explanation, and moved on to the next one.

The line is worth having in full, because nearly everything written about the keukegen since has been an attempt to work around how little it contains. Hair grows over its whole body, Sekien writes, just as it did on the Mao-nü. That is the entire description. It is not a description of a monster at all. It is a comparison, and the thing being compared to is not Japanese.

The Mao-nü, the hair-covered woman, comes out of the Liexian zhuan, the old Chinese collection of immortals’ lives. Her name was Yujiang. Hunters in the mountains of Huayin had been catching sight of her for generations, and hair had grown over her body. She told them she had been a palace woman of the First Emperor of Qin, and that when Qin fell she had run into the mountains to save herself, and that a Daoist called Gu Chun had taught her to eat pine needles. After that she was never hungry and never cold, her body turned light enough to fly, and she had been alive for a hundred and seventy years and more. In the cave where she lived, people said, you could hear someone playing a zither.

That is Sekien’s whole frame of reference: a saint so old and so far from human company that her body took a pelt. Set the two side by side and his joke sharpens, because he gives the name a second writing in the same caption, three characters that read the same aloud and mean “rarely seen”. A holy woman glimpsed once a generation by hunters; a hairy nothing in a suburban garden that you will also never quite catch sight of. The whole creature is a pun with a picture attached.

Look at the picture properly and it refuses to be the formless heap that later descriptions promise. The hair is drawn in long combed strokes, parted and swept outward from the middle of the mass like a bad wig, and it hangs in dense hanks past where shoulders would be. The eyes are the surprise. They are large and round and perfectly steady, staring straight out of the print at the reader, with a snub little nose between them that would look at home on a lapdog. There is no mouth. There are no arms and no legs. It is not hiding, it is not crouching, and it does not appear remotely shy. It is standing in a tidy garden beside a water jar, looking back.

Everything you have probably heard about it arrived afterward. That it lives under the floor, in the damp, in the space beneath a house where the air never turns over. That it spreads illness through the rooms above, so the family runs low fevers and small misfortunes and nobody can say why. That it is a kind of plague spirit, a pestilence given a body. Those readings have names and dates attached: Tada Katsumi set it among the plague deities in 1990, and Mizuki Shigeru’s enormously influential yokai compendia put it under the damp floorboards, where it has stayed. Murakami Kenji’s yokai dictionary notes the obvious problem plainly, which is that none of this comes out of Edo-period folk belief. It comes out of the twentieth century.

Sekien never says it makes anyone ill.

This is less damning than it sounds, because the Konjaku Hyakki Shūi is full of creatures that appear to have no folklore behind them at all. Sekien was an artist with a working knowledge of Chinese and Japanese books, a fondness for wordplay, and three volumes to fill. He invented freely. What he handed the future was a shape and a name, and later writers did what people do with a shape and a name, which is to give it somewhere to live and something to want. The damp-floorboard story is a good one, and it earns its keep by being useful. A spirit that thrives in the cold unswept corner and leaves when the shutters are opened is a household rule wearing fur.

Whatever powers it has run entirely on that logic. It asks nothing, builds nothing, fights nothing. It settles into stale air and standing damp and the kind of neglect that nobody notices because there is nothing to notice, and the harm it does arrives as a slow ordinary decline in the health of a house. There is no confrontation and no tale in which anyone defeats it, because there is no tale at all, only the one image and a century of housekeeping advice grown over the top of it.

Its weakness follows just as directly, and it is the reason the creature has lasted. You do not need a priest or a charm or salt on the threshold. You open the windows, let the light into the corner, sweep out the damp and the dust and whatever has been quietly composting under the boards, and the conditions it needs are simply gone. The cure and the diagnosis are the same act. Which leaves the older keukegen, Sekien’s one, still standing out there beside the water jar with its two round eyes, uninterested in anyone’s health, a hairy visual pun about a Chinese immortal who ate pine needles for a hundred and seventy years.

Frequently Asked Questions

What is a Keukegen?

Keukegen is a hair-covered creature illustrated by the artist Toriyama Sekien in his 1781 picture book Konjaku Hyakki Shūi. Sekien’s caption describes only two things about it: that hair grows over its entire body, and that it is rarely seen. It has no known folk tradition behind it and appears to be one of Sekien’s own inventions.

What does the name Keukegen mean?

The name is a pun. Written 毛羽毛現 it points to the creature’s covering of hair, while in the same caption Sekien also writes it 希有希見, three characters that sound identical and mean “rarely seen”. Some later books use a third spelling, 希有希現. All of them turn on the joke that this is a marvel almost nobody lays eyes on.

Does Keukegen cause sickness?

Not in its original source. The idea that Keukegen lives under damp floorboards and brings illness to the household above belongs to twentieth-century yokai writing, notably Tada Katsumi’s treatment of it as a plague spirit and Mizuki Shigeru’s widely read compendia. Murakami Kenji’s yokai dictionary points out that this explanation is not drawn from Edo-period folk belief.

What does Keukegen look like?

In Sekien’s print it is a standing mass of long black hair reaching the ground, roughly as tall as the household water jar beside it. Two large round eyes and a small blunt nose show through the hair, and there is no visible mouth, no arms and no legs. Descriptions that give it no face at all do not match the picture.

Who is the Mao-nü that Sekien compares Keukegen to?

The Mao-nü, or hair-covered woman, is an immortal from the Chinese Liexian zhuan. She was said to have been a palace woman of the First Emperor of Qin who fled into the mountains when the dynasty fell, learned from a Daoist to live on pine needles, grew hair over her body, and survived more than a hundred and seventy years. Sekien names her as the model for Keukegen’s appearance.