An 85-year-old who runs the Haigou Clinic and is well-versed in martial arts. He is abducted by a tengu and sent to the mystic realm known as the Spiral World. As the price for crossing into that realm, his age is taken away, and he is turned into a 10-year-old boy.
(Source: manga)
Content compiled by AnimeList.moe from publicly available sources.
