Tradition / Region: Japanese Mythology
Alternate Names: Inugami, Inuzuka, Loyal Dog
Category: Dog
The Myth
Across Japan there are many stories of loyal dogs who sacrifice themselves to save their masters, and in some places these dogs are worshipped as gods under the name Inugami Myōjin.
One ancient tale tells of a hunter who lived by the Shirajiya River. He hunted constantly in the mountains, killing deer and wolves without prayer or remorse. His only companion was a faithful hunting dog named Koshiromaru.
One day, the hunter entered the forest with his dog and was caught far from home when night fell. Uneasy, he took shelter beneath a rotten tree and prepared to sleep. As darkness deepened, Koshiromaru suddenly began barking wildly at him, leaping and circling in agitation. The hunter tried to quiet him, but the dog would not stop. Angered and thinking the dog had gone mad, the hunter drew his sword and cut off its head.
In that instant the severed head leapt into the hollow of the tree and clamped its jaws onto a giant snake that had been hiding there, ready to swallow the hunter whole. The head continued biting until the serpent died.
Realizing that his dog had tried to save him, the hunter was overcome with grief and remorse. To honor Koshiromaru’s loyalty, he built a shrine on that very spot and began worshipping the dog’s spirit as a deity. The shrine came to be known as Inugami Myōjin, and the region itself took its name from the dog’s sacrifice.
Another old story tells of a hunter in Mutsu who kept many dogs and often slept in the mountains with them. One night a single dog woke and barked fiercely, leaping at its master. Thinking it had turned savage, the man tried to strike it down. But when he stepped aside, the dog sprang into the hollow tree where the man had planned to sleep and attacked a massive snake hidden within. The hunter then understood the dog’s warning and killed the serpent. This time the dog survived, and the man returned home deeply grateful for its devotion.
In some darker versions, the master kills the dog in suspicion, only to be slain by the snake afterward. In others, the regretful master is reborn as a bird, forever crying out the dog’s name.
Because of these tales, loyal dogs who died protecting their masters came to be honored throughout Japan. Shrines, mounds, and place names commemorate them, and their spirits are believed to guard the living. Thus the faithful dog, once a humble companion, is remembered as Inugami Myōjin — a protector whose loyalty transcends death.
Gallery
Sources
Tyz-Yokai Blog. (n.d.). Inugami Myōjin. Retrieved March 1, 2026, from https://tyz-yokai.blog.jp/archives/1069534939.html
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