Lin Buyi accidentally entered a mysterious "supernatural agency" and accidentally met the ghost Song Xiaogui and the half-immortal Su Ranran. The three of them were involved in escalating supernatural events. As the investigation progresses, from village hauntings to metropolitan ghost markets, from family mysteries to ghost battles, we face serious horrors as well as absurd and interesting things, and battle wits and courage with innocent ghosts, ghosts, and mysterious forces. In the end, the secrets of the operation of the supernatural world are revealed. Everyone experiences life and death, emotional changes, completes self-growth, and the boundaries between humans and ghosts are further blurred. The story ends in a climax, with all the characters in their respective roles, with a warm and humorous undertone.