Young Lin Yian was selected as a temporary "spirit mediator" due to a supernatural misunderstanding. He was forced to deal with ghosts and became involved in a huge supernatural network hidden under the city. His companions include trainee psychic Zhou Qing, funny ghost uncle, ghost king kid, and real-life policeman Jiang Wen. The five of them each have their own skills and use humor to resolve every supernatural crisis. As the story progresses, they learn that there is a "City of Wrong Souls" in the urban spiritual world that will cause a catastrophe. Only by solving the mystery, reconciling humans and ghosts, and releasing regrets can the disaster be prevented. The process is constantly funny, with horror and warmth intertwined. The protagonist team grows and understands tacitly along the way, turning the uneasiness of the supernatural into a relaxed and cute one, using humor and love to resolve the gap between humans and ghosts. The three volumes have a clear structure: introduction to the supernatural, escalation of the crisis, and ultimate resolution of wronged souls. The content of each volume is relatively independent and interlocking, and the plot is compact, full of laughter, courage and warmth, and finally ends with positive power.