|Hokusai, detail of a bestiary drawing showing a kappa|
In the depths of Japan’s bodies of water lives an imp known at the kappa. It looks like a monkey with a beak that is the size of child with webbed hands and feet. On its back is a tortoise shell and it has a protrusion that hold a jelly substance that is the source of its power.
|Portrait of one of the kappa in front of JR Tono Station in Iwate Prefecture, Japan by Iwatebud|
The kappa enjoys luring people into deep treacherous waters so they drown. Then the imp enters the boding and devours its blood and organs. It especially likes the liver. Some stories tell of the kappa losing its arm. It will promise people favors, such as not attacking local villagers or teaching someone to heal, in exchange for its arm back.