Lin Yun has yin and yang eyes and is born with the ability to see ghosts. By chance, he became a partner with Su Ming, the ghost who had an unresolved grievance, and from then on he was involved in a series of thrilling and bizarre supernatural events. On the way, they met scientific researcher Chen Xinran, police officer Luo Wenbin and the mysterious underworld messenger Ali. The five people travel together between reality and the netherworld to solve all kinds of strange and unsolved cases. Lin Yun gradually uncovered his own destiny, the past of the wronged soul, and the secret connection between the underworld and the human world. The story is divided into three volumes. The events in the volumes are compact and humorous, and the volumes echo each other. From urban supernaturals to underworld drama, it finally ends in a netherworld war, showing humanity, friendship, humor and growth.