Azuki-Arai

Overview

The azuki-arai ("bean washer") is heard far more often than it is seen. Near rivers and streams at night, travelers report a rhythmic scraping sound — the noise of azuki red beans being washed against stone — accompanied by a chanted refrain: "Shall I wash my beans, or shall I eat a person?" (azuki togōka, hito kutte yarōka). The exact words vary by region, but the pattern is consistent.

Appearance

No single appearance is agreed upon. Regional traditions describe the azuki-arai as an old woman, a child, a small demon, or simply a disembodied sound with no visible source at all. The shapelessness is part of its character — it is fundamentally a sound yokai, a piece of supernatural auditory folklore.

Folklore and Meaning

Kunio Yanagita analyzed this category of "sound yokai" in his Yōkai Dangi, noting how a wide range of unexplained nocturnal sounds across Japan were personified as bean-washing creatures. The mundane domestic action of washing beans, transposed to a dark riverside at night, becomes deeply unsettling. Many traditions warn that approaching the source of the sound risks being pulled into the water.

A Warning in Disguise

Like many water-related yokai, the azuki-arai likely served as a communal warning against approaching rivers after dark — a real danger in an era without reliable lighting. Giving the hazard a name and a voice made the warning memorable and transmissible across generations.