Lin Wei, a modern woman, accidentally traveled to the body of a five-hundred-year-old white python in the world of immortality on a thunderstorm night, and met Leng Lie, a human prince with psychic abilities, deep in the mountains. One person and one snake depend on each other in the dangerous mountain forest. Lin Wei works hard to practice transformation in order to protect Leng Lie, while Leng Lie regains the courage to live because of Lin Wei's company. The two went down the mountain together and got involved in the struggle for human imperial power and the disputes in the world of immortality. In the end, Leng Lie ascended to the position of human emperor, and Lin Wei also found her own path.
