When Shao Cang performs the soul-stealing formation on Nan Yang, he realizes the formation will lead to her death. He immediately stops the formation and enters her sea of consciousness. Angry with Fu Ling for making use of him to kill Nan Yan Yan in order to leave her body, he captures and punishes Fu Ling. Fu Ling then reveals another method to alter hosts without hurting anyone. The Seven Sins Manual consists of twin Talisman Genies. Only when they are reunited can the effects of purging demons and punishing the sinful be achieved. Shao Cang is summoned by Nan Yan's mother, who turns out to be the demi-god, Chief Nan Feng. She casts a Seal of Romance on Shao Cang with Nan Yan. It's a vow of life and death between a cultivation couple and can only be resolved by death. (Source: Chinese = Baidu || Translation = AnastasiaWun at MyDramaList)