Wikipedia
Amefurikozō
Amefurikozō (雨降小僧, 雨降り小僧) is a type of Japanese yōkai. There is a depiction of this yōkai in Sekien Toriyama's collection of yōkai drawing the Konjaku Gazu Zoku Hyakki, and they can also be seen in the kibyōshi among other publications of the same era.