He is a wild boy who grew up in the Chenghuang Temple. He has been able to see "floating shadows" since he was a child - red is a wandering spirit, orange is a fierce ghost, and yellow is a resentful ghost... Later he learned that those shadows are called "ghost energy", and he is the "night watchman" specially appointed by the underworld. When he met a scholar on night patrol for the first time and asked for his life, he absorbed the ghost energy and rose to vigil; when he encountered a virgin slaughtering a village at night again, he collected the resentful ghosts and promoted to town night; the minions of the Ghost Refining Sect became more and more fierce, but his night patrol energy became more and more pure. The green ghost emperor wanted to kneel when he saw him, and the blue and purple ghost energy melted when he saw him. Until he kicked open the gate of hell and looked at the master of the Ghost Refining Sect behind the scenes who had been controlling the ghost chaos for hundreds of years. He held the 'Source of Immortality' in his palm and smiled: 'What you have robbed for a hundred years is now mine - in this life, I will use ghost energy to prove my immortality.