Daoqing (played by Lin Youwei), who was transformed from a heavenly spirit tree thousands of years ago, meets a green snake (played by Gillian Chung) who comes here to cultivate immortality, and the two gradually fall in love. Daoqing goes against the will of heaven and gives the green snake the green tree to help her transform into a mermaid, while he himself falls into the calamity of reincarnation. For hundreds of years, the obsessed green snake has been constantly looking for Daoqing's reincarnation, wanting to solve the life and death calamity of Xin Shangren. And Yue (played by Henry McHenry), the god of Jiling Mountain, is silently protecting her...