What is "keneo"

is an old man who sits at the edge of the Sanzu River in the Buddhist underworld. When a soul of an adult arrives at the river, Datsue-ba forces the sinners to take off their clothes, and Keneō hangs these clothes on a riverside branch that bends to reflect the gravity of the sins. Various levels of punishment are then performed by the pair. For those who steal, for example, Datsue-ba breaks their fingers, and together with Keneō, she ties the sinner's head to the sinner's feet.