It is said that the ancient god, who was trying to protect all living beings in the three realms when the heaven and earth first opened, died in the war between gods and demons ten thousand years ago. His soul was scattered across the land of Kyushu. It is said that one of the souls fell on the top of Kunlun. Because the mountain was guarded by the ancient beast Bai Ze, it was impossible for ordinary people to go there.
The demon world learned that the fairy grass was born and wanted to come back to destroy the divine world. The mythical beast transformed into the god of war Shi Sheng in order to save the fairy grass. However, it was seriously injured and was rescued by Tianzun. When he woke up, he could not remember the love of protecting the fairy grass every day. The fairy grass was also taken over by the god Xu. Hua Xiangshu transformed into the goddess Jinhe, and the two fell in love in the fairy world by fate, until Shi Sheng died in the battle between immortals and demons. Jinhe could not let go of his obsession because of the loss of Shi Sheng, and was willing to fall into reincarnation to awaken Shi Sheng's soul and help him regain his immortal body.
Since then, the two have started a fateful reincarnation.