, or , is a ghostly phenomenon in Japanese folklore, in which a mysterious noise that sounds like azuki beans being washed or ground is heard. It usually occurs near a river or other body of water. Sometimes the creature or spirit responsible amuses itself by singing "azuki togou ka, hito totte kuou ka?
In Japanese folklore, the "azuki bean ghost" is a ghostly phenomenon that produces sounds like azuki beans being washed or ground. It often appears near bodies of water and sometimes sings a song about azuki beans while doing so.