Tradition / Region: Japanese folklore (Shima, Mie Prefecture)
Alternate Names: Sansho Kurage
Category: Plant
The Myth
Among the women divers of Shima, who for generations descended into the sea to gather abalone and seaweed, there were stories of a feared presence beneath the water known as the Sansho-birashi.
When the divers worked along the reefs, they sometimes felt a sudden sting, sharp as a needle. At first it was only a small pain, but soon it spread through the body, tightening the chest and making it hard to breathe. Some said the shock could even cloud the mind, leaving the diver confused or helpless in the water.
In earlier times, such attacks were believed to be the work of a demon that lurked among the reefs. The creature was said to be small and difficult to see, nearly transparent, hiding where the seaweed cast shadows. It struck silently and vanished just as quickly.
Because of this, divers took precautions. They crushed the leaves of the sanshō plant and smeared the sharp-scented juice across their skin before entering the sea. Others tucked sprigs of sanshō into their hair as charms, believing the plant’s power would repel the unseen attacker.
Another creature feared in the same waters was called the Sansho Kurage, a jellyfish-like being said to drift beneath seaweed beds. Its sting was said to bring burning pain and fever, and it too became part of the stories told among the divers before they slipped beneath the waves.
Even as time passed and people learned ways to treat the stings, the name Sansho-birashi remained, a reminder that the sea was never empty, and that unseen things could still wait among the rocks for those who entered their realm.
Gallery
Sources
Tyz-Yokai Blog. (n.d.). Sanshō-birashi. Retrieved March 1, 2026, from https://tyz-yokai.blog.jp/archives/1056156792.html
Interpretive Lenses
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