Xue Linglong, a little snake demon at the foot of Qingcheng Mountain, has been practicing hard for thousands of years to survive the thunder tribulation. She shed her snake body and transformed into a beautiful girl. Under the guidance of Guanyin Bodhisattva and Yue Lao, she went to the human world to find her destined emperor to end her past love. A trip to the human world is supposed to be a journey through the mundane world and then leave. However, during this process, Linglong met her sister Qingdai and the person she deeply loves, Lin Haoxuan. Is this the unfinished love from the previous life, or the beginning of another love-hate relationship? Let us look forward to finding the answer in the play.