The person who refines the Gu needs to refine the Gu and plant it in the body of the monk, swallowing the opponent's aura and affecting the opponent's mind, so one is regarded as evil by the world of immortality. Chen En was originally a disciple of the Gu Sect to refine the desire Gu. Because of his outstanding talent and outstanding performance, his master sent him to the Qingyun Sect, the most authentic sect in the world, to become an undercover agent. Until that day, the Holy Girl of the Qingyun Sect was injured by the Junior Sister of the Gu Sect, and a desire poison was planted on her body. Her face turned red with shame, and her clothes were soaked with fragrant sweat. Chen En knew that his chance had come, and helped the Saint to resolve the desire poison. From then on, he rose to prominence in the Qingyun Sect and became a recognized leader of both good and evil.