Shuten-dōji (酒呑童子)

Deep in the mountains of Ōe, on the border between Tanba and Tango, a king held court in a rock cavern no human foot had ever found. He commanded legions of demons, Ibaraki-dōji foremost among them, and ruled from a palace carved from the living stone. The name his followers gave him was a gift of sorts — he loved sake above all things, and so they called him Shuten-dōji, the Child Who Drinks. Depending on the source, the characters shift: Shuten, Shuten, Shuten, Shuten — the spelling never settled, and only the rumor endures.

In the reign of Emperor Ichijō, young men and noblewomen began vanishing from the capital one by one. The divinations of Abe no Seimei pointed toward Ōe. Acting on imperial command, Minamoto no Raikō and Fujiwara no Yasumasa disguised themselves as wandering mountain priests and slipped inside the demon's fortress. Shuten-dōji already knew Raikō was coming — and still he could not refuse the cup.

He drank the poisoned wine the gods had prepared for him — the shinpen-kidoku-shu, the divine draught of demon-bane — and as his limbs went slack, Raikō's blade Dōjigiri-Yasutsuna swept his head from his shoulders. But the severed head rose into the air and clamped its jaws onto Raikō's helmet. The demon's thirst had outlasted the body that housed it.

The lineage of the legend splits cleanly in two: the Ōeyama tradition, which places his lair in those mountains, and the Ibukiyama tradition, which roots him instead in Mount Ibuki in Ōmi Province. Which is true remains lost in the fog. A monster without a fixed address is a monster that can be anywhere.

The sword that killed him — Dōjigiri — still rests in the Tokyo National Museum, counted among the Five Great Swords of the realm, a National Treasure. Tada Shrine in Hyōgo preserves another blade known as Onikiri-maru, the Demon-Cutter. So long as the weapons that bound the demon remain in the world of the living, the demon himself goes on living inside his name.

What Shuten-dōji truly was remains unanswered — a bandit lord, a god of the land warped into something monstrous, or perhaps something the capital chose to call a demon so that it could be erased. The question, like the margins of the picture scrolls that depict him, has been left blank on purpose.