The heroine Chang Yu is possessed of the demon element, but she is kind-hearted. However, the heaven always believes that one day the demon gods will harm the world, so they are unwilling to let it go. They send Lan Feng, the son of the Emperor of Heaven, to go down to the realm to eliminate demons. During the time they get along with her, Lan Feng discovers that Chang Yu is not a murderer, but has a kind heart and is willing to live and die with her.
Purpose: for the common people