The story takes place in a modern city, where "supernatural mediator" Zhao Xiaofan is involved in various absurd and bizarre supernatural events one after another. He formed a temporary investigation team with Su Qiaoer, the president of the Supernatural Detective Agency, Li Daniu, the oolong policeman, and Xiaohe, the ghost girl who was accidentally possessed. Three people and one spirit join forces to investigate supernatural cases in the city, not only to reveal the truth but also to resolve misunderstandings. However, the cases become increasingly bizarre and often fall into comedy and crisis. Gradually uncover the true face of the supernatural world, and discover that there are more treacherous conspiracies hidden behind all the strange things. In the end, after experiencing the major case "The Rift in the Underworld", they prevented the supernatural space from invading the city, completed their self-salvation, and their bond with each other became deeper. The book consists of three volumes, with a compact setting, ups and downs of the plot, and multiple supernatural cases staggered forward. It is both suspenseful and humorous.