Synopsis: Bai Jingyao, a doctor girl, went to Changbai Mountain to collect herbs and accidentally fell into the lake. Fortunately, she was rescued by the thousand-year-old snake fairy Liu Longting. The two forged a contract to subdue demons and eliminate demons.
Liu Longting and Bai Jingyao learned that the villagers of Lijia Village had to offer their daughters to the mountain god Youjun every year. Long Ting asked Jing Yao to go in disguise. In the new house, there are many dangers, and the unbearable Long Ting turns into a big white snake and rushes into the bridal chamber, and starts a fight with You Jun. Outside the window, Yue Tianxiang led his men to shoot arrows at them, and Long Ting led Jing Yao away. Jing Yao's childhood sweetheart, Feng Zexiu, was unfortunately arrested in order to cover the two.
Yue Tianxiang entangled many times, leading Long Ting to a secret realm. A woman in purple was leaning on the bed. Long Ting recognized that she was Yinhua, the lover he once loved. Yinhua ordered Long Ting to hunt for Jing Yao's essence for her cultivation, but Long Ting stopped her and decided to go by herself.
Long Ting found Jing Yao, raised the demon blade in his hand, thought of Jing Yao's innocence, and thought of Yin Hua's hardships, Long Ting's heart was complicated and he couldn't make a choice!
