Katawaguruma Nyūdō

Tradition / Region: Japanese Mythology
Alternative names: One-Wheeled Monk / Flaming Wheel Monk
Category: Yokai, Flame


The Myth

The Katawaguruma Nyūdō is a terrifying yokai that roams the streets of Kyoto at night. It appears as a gigantic hairy monk with a fierce face and enormous strength, riding upon a single wheel engulfed in flames. The burning wheel races through the darkness like a cart from hell, spreading fire and fear wherever it passes.

According to legend, the creature was once a powerful and wealthy monk who lived in the Rokuhara district of Kyoto. Cruel and arrogant, he delighted in the suffering of others and committed countless wicked deeds without fear of divine punishment. Although he enjoyed great prosperity during his life, his evil eventually caught up with him.

Divine punishment descended upon the monk, and he was consumed by supernatural flames. Transformed into a monstrous spirit, he became the Katawaguruma Nyūdō, forever condemned to wander Kyoto upon his fiery wheel.

One night, a woman living nearby put her three children to sleep and, through a knot hole in her door, secretly watched the terrible apparition pass by. The flaming monk noticed her gaze and shouted:

“Look to your children instead of looking at me!”

Terrified, the woman rushed to her children, but it was too late. The Katawaguruma Nyūdō seized all four members of the family and carried them away into the night, and they were never seen again.

Thus the One-Wheeled Monk became one of Kyoto’s most feared supernatural beings — a burning spirit born from greed and cruelty, whose fiery wheel still races through the darkness searching for those unfortunate enough to witness its passage.


Sources

TYZ. (n.d.). Katawaguruma Nyudo [片輪車入道]. In 新版TYZ 妖怪図鑑. Retrieved June 13, 2026, from https://tyz-yokai.blog.jp/archives/1079937229.html


Keukegen

Tradition / Region: Japanese Mythology
Alternate Names: 毛羽毛現, Keugegen (variant reading)
Category: Dog, Yokai


The Myth

Keukegen are strange little creatures said to dwell in neglected homes and damp places where dirt gathers and sickness lingers.

They are described as being about the size of a small dog, but their true form is hard to see clearly. From a distance they appear as nothing more than a lump of long, filthy hair. Up close, the mass shifts and moves, revealing a living creature hidden beneath the tangled fur.

These beings prefer cool, dark, and moist places. They settle beneath floorboards, inside moldy closets, or in abandoned corners of houses where dust, rot, and still air collect. Gardens choked with weeds and damp refuse are also said to attract them.

Though they may seem harmless, Keukegen are not welcome visitors. Wherever they settle, sickness soon follows. People in the house begin to fall ill, fevers spread, and misfortune seems to cling to the place. Because the creatures are shy and rarely show themselves, many only realize they are present when illness has already taken hold.

They do not attack openly and usually avoid being seen. Some who claim to have glimpsed one are dismissed as imagining things, yet the signs of its presence — sickness, weakness, and bad luck — are said to be unmistakable.

The only sure way to drive a Keukegen away is simple: clean the house. Fresh air, sunlight, and order force the creature to leave, for it cannot live where a home is well kept.

Thus Keukegen are remembered as small, filthy spirits that creep into neglected places, bringing disease in their wake, and fleeing wherever cleanliness and care take root.


Gallery


Sources

Foster, M. D. (n.d.). Keukegen. In yokai.com, from https://yokai.com/keukegen/


Interpretive Lenses

Religious Readings
  • Christian Ascetic Deep Dive
Philosophical Readings
  • Nietzschean Deep Dive
Psychological Readings
  • Jungian Deep Dive
Esoteric Deep Dive
  • Hermetic Deep Dive
Political / Social Readings
  • Marxist Deep Dive