Mo Lin has been appointed as the Head of Yin Department in Yedou, the city of ghosts, and returned to Earth with the Ghost Suppression Book. Though the Earth has already been occupied by evil spirits, Mo Lin is way powerful than them. “Young man, don't go out at night. There are ghosts outside, it's too scary.” “Ghosts? Sorry, I'm not afraid. The more ghosts there are, the more excited I get.”