From being forced to accept this "temporary" job, to gradually discovering that there is a millennium conspiracy hidden behind seducing the wrong soul - the black and white negligence is not an accident, but someone has tampered with the book of life and death. In the process of investigating the truth, Ji Yuan was involved in the game between the three major supernatural forces in the world (the orthodox underworld, the folk warlocks, and the wild ghost king), and finally discovered that his previous life was actually the enlightened monk who made a bet with Ksitigarbha Bodhisattva: "Who will go to hell if I don't?"