There was a big battle between the demon world where Xiao Hongxuan lived and the Immortal Emperor Yu Feng. Yu Feng's son, Jing Bai, was seriously injured in order to save Xiao Hongxuan. Later, due to the weakness of the demon world after a great battle, the ghost king Bi Gui of the ghost world took advantage of human danger to attack the demon world. Jing Bai forcibly summoned his divine consciousness to save Xiao Hongxuan and died.
In order to rescue Jing Bai, Xiao Hongxuan found Jing Bai's reincarnation in the spiritual world. At this time, Jing Bai was already an ordinary disciple of Xuantian Pavilion. If he wants Jing Bai to come back, he can only let Yu Yi practice and become an immortal again, and then he can carry Jing Bai's soul.
Purpose: Xiao Hongxuan, a demon king, came to the human world to rescue Jing Bai and found Jing Bai's reincarnation, Yu Yi. In order to resurrect Jing Bai, he accompanied Yu Yi on the path of practice.