As a demon lord, Li Yan has the reputation of "peerless demon cultivator and sin-judging god", but he just started training as an apprentice in the demon world. Unexpectedly, he is not the material at all. Each of the four apprentices is troubled:
The seemingly most stable disciple of Xuan Lang has only muscles and no brains;
The second disciple of the cold-blooded snake demon doesn't like having his master pester him to call him daddy every day;
The peacock demon was his only female apprentice, but she broke off her tail feathers and fled to the world;
The identity of Li Ai, who was the last to enter the master's door, was unknown. In order to seek justice, he knocked on his door with hot tea in hand. However, it took many years for Li Yan to realize that the knock on the door was the biggest punishment on Duan Sui Mountain...
After being imprisoned for a hundred years, the sinful demon made atonement for Liyan to see the light of day again. After being severely tortured and having the demon pill cut off, could Liyan see the evil disciples again?
Intent: Loneliness and redemption