Japanese Mountaind dweller Mythology Archives

Tradition / Region: Japanese Mythology
Alternate Names: Thousand Mountain Carp
Category: Fish, Mountain dweller, Carp

The Myth

The Senzanri is a strange and transformative carp, said to be capable of leaving the water and becoming a creature of the mountains.

According to the story, a boy named Torakichi spoke of this being from his own experience. He said that when certain substances were mixed into water or shaped like fish and placed in old ponds, crucian carp would appear in great numbers. These carp were not ordinary fish. Among them were those that would later become Senzanri, carp that transform and give birth after leaving the water.

It is commonly said that carp climb waterfalls and become dragons, but Torakichi explained that this belief misunderstands what truly happens. The carp do not become dragons. Instead, using the force they gather while leaping up waterfalls, they launch themselves into the mountains. There, far from rivers and ponds, the transformation begins.

Once on land, the carp rolls about in grassy places. As time passes, its body becomes rounder and harder, forming a shell. Hair grows between its scales. Its fins change into four limbs, and the creature begins to crawl like a land animal. Though its shape changes, its inner body remains that of a carp.

In this form, the Senzanri lives in mountain pools, where it gives birth to offspring known as mountain-burrowing carp. These young inherit the strange nature of their parent, belonging neither fully to water nor to land.

The Senzanri is thus a creature that bridges worlds: born as a fish, transformed by the mountains, and living a life hidden from ordinary human sight.

Gallery

Sources

TYZ-Yokai Blog contributors. (n.d.). 雪女 (Yuki-onna). In TYZ-Yokai Blog, from https://tyz-yokai.blog.jp/archives/1010654386.html

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How to Invite The Senzanri

The Myth

This strange incident is said to have happened in the youth of an old man named Kikuchi Yanosuke.

One night, under a faint, pale moon, Yanosuke and several companions were crossing Sakaiki Pass, a mountain path leading toward the coast. Yanosuke was known as a skilled flute player, and as they traveled, he played his flute while walking.

As they passed through a place called Ōyachi, they entered a deep valley. White birch trees grew thickly there, and below the path ran a marshy ravine filled with reeds and tall grasses.

While they were crossing this valley, a high, piercing voice suddenly rose from the depths below. From the darkness of the ravine, something unseen cried out:

“Omoshiroi zo—!”
(“This is interesting!”)

At the sound of the voice, everyone turned pale with fear. Without seeing any figure or source, the group fled in terror, abandoning the path and running from the valley.

Later in his life, Yanosuke experienced another unsettling event deep in the mountains, when he heard the scream of a woman echoing through the forest. It was later discovered that, at the very same time, his sister had been killed by her own son.

The voice calling “Omoshiroi zo” was never explained, and no form was ever seen. It remains remembered as one of the many eerie, disembodied presences said to dwell in the mountains and valleys of the region.