Yan Luo Chen Tai and Nian Nu were originally a couple, but they were separated due to the interference of the Water God and Fire God. Yan, having no recourse and having committed wrongdoings, was punished and sent to the underworld for torture. In hell, he reunites with Nu, who is now married to the Ghost King. However, she secretly carries Yan Luo's child. She secretly devises a plan to send the child to the human world, which enrages the Ghost King. From then on, there is an irreconcilable conflict between him and Yan.