Ten years ago, Liu Shian and Baiyu both died in a decisive battle. For this reason, Liu Mengbai came to Xunjiang to investigate and ran into Bai Qiulian, the fish demon. The two fell in love at first sight, and they met each other.

Nie Xiaoqian was betrayed and died with hatred. She turned into a ghost after death and was imprisoned in Lanruo Temple. Ning Sheng went to Capital to take examination and stayed here, and accidentally saved Xiaoqian.

Behind the Ancient God's Land, the Eternal Night Demon City in the Demon Cultivation Sea rises overnight. In order to expand its territory, it attacks the sects around the Sea, including the Yuntian Sect. Li Muwan is poisoned in the battle to protect the gate, leaving her life at stake. After Wang Lin learns of this, he takes her into the Sea again. Wang Lin fights the three city lords with his initial cultivation of the God of Incarnation, and becomes famous in the Sea. He returns with the antidote to save Li Muwan, but finds that the crisis unresolved, and the thousand-year conspiracy surfaces. Relying on their feelings and the first fusion with the body of the Ancient God after the God of Incarnation, Li Muwan and Wang Lin join forces to defeat the Demon Lord.