Abura-sumashi
In its own language: 油すまし
from Japanese abura (oil) and sumasu (to press or pour)
A mountain spirit from Amakusa folklore said to be a thief turned yōkai
The abura-sumashi is a spirit from the folklore of Amakusa in Kumamoto Prefecture. It is believed to be the reincarnated ghost of a person who stole oil and fled into the woods.
- Spirit from Amakusa, Kumamoto Prefecture folklore
- Reincarnated ghost of an oil thief
- Punishment for stealing vital household oil
- Depicted with a straw coat and stony head
- Artistic style defined by Shigeru Mizuki
What it is
The abura-sumashi is a legendary creature found in the mountain folklore of Japan. Specifically, it belongs to the Amakusa region in Kumamoto Prefecture. This being is classified as a yōkai, a type of supernatural entity. It appears on remote mountain passes to startle travelers. The spirit is not a natural animal but a transformed human soul.
Where it comes from
Local belief holds that this spirit was once a human thief. The individual stole valuable oil and ran away into the forest. Because oil was essential for light and heat before electricity, stealing it was a serious crime. As punishment, the thief was reborn as a yōkai. This transformation serves as a moral warning against theft.
How it is done
Stories describe the abura-sumashi appearing suddenly to hikers. An old woman might tell her grandchildren about the spirit. A voice would then answer from the shadows, claiming to still live there. Sometimes the creature materializes out of thin air. It does not follow a ritual but acts as a surprise encounter.
Tools and materials
Modern depictions show a squat figure with a head like a stone or potato. Its body is covered in a rough straw coat. These images come from artist Shigeru Mizuki. The straw coat reflects its life in the wild woods.
Abura-sumashi, drawn and placed
- Living
- Revived
- Fading
- Historical
- Legendary
- Performed
- Lineage
- Japanese yōkai tradition
What it is for
The spirit serves as a cautionary tale. It warns against stealing resources needed for survival. In the past, oil was vital for heating homes and providing light. Taking it from shrines or temples was seen as a grave offense. The myth enforces social rules through fear.
Who does it
Scholars study these tales as part of Japanese folklore. No living practitioners perform rituals for this spirit. It exists only in stories and artistic representations. The tales are passed down orally or through books.
Peoples and places
This legend is specific to the Amakusa area of Kumamoto. It reflects local values regarding property and community safety. The story is unique to this region of Japan.
At a glance: who, where and when
Peoples
What people believe
The belief connects theft to spiritual retribution. It suggests that bad actions lead to unnatural forms. The yōkai world mirrors human justice. Those who break laws face eternal consequences.
When it is done
No specific festivals or dates are tied to this spirit. Encounters happen randomly on mountain trails.
How scholars and sceptics see it
Researchers view the abura-sumashi as a cultural artifact. It illustrates historical anxieties about resource scarcity. The myth shows how communities enforced moral codes.
Cautions and what is closed
The spirit is fictional and poses no real danger. It is a product of imagination and oral tradition.
Compare and confuse
It resembles other yōkai born from human sins. Many Japanese spirits represent karmic punishment for earthly crimes.
Law and persecution
There are no legal issues surrounding this legend. It is protected as cultural heritage.
Today
The abura-sumashi appears in modern media and art. Shigeru Mizuki’s illustrations popularized its look. It remains a niche figure in Japanese monster lore.
Questions people ask about Abura-sumashi
What is an abura-sumashi?
It is a yōkai from Japanese folklore in the Amakusa region. It is believed to be the ghost of a person who stole oil and fled into the mountains.
Why did the human become a spirit?
Before electricity, oil was essential for light and heat. Stealing it was a severe crime. The thief was punished by being reborn as a yōkai.
What does the abura-sumashi look like?
It is shown as a squat creature with a potato-like head. Its body is covered in a rough straw coat, based on artwork by Shigeru Mizuki.
Where does this legend come from?
It originates from the mountain passes of Kumamoto Prefecture in Japan. Stories say it surprises travelers on these remote trails.
Good reading and sources
The facts on this page come from the Wikipedia article "Abura-sumashi", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryJaadu rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes. Names and customs differ from one community to the next, and some knowledge is closed to outsiders and left out here. This page describes belief and practice. It does not say that any of it works, it is not a how-to, and it is not medical advice. If something is wrong, tell us. Last refreshed 2026-10-06.
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