Summary:

This is the story of Qin Fang, a designer, who, while searching for roots and attempting to awaken Si Teng, a plant alien descendant who has been unconscious for decades, unintentionally fell off a cliff by accident in this series.
A Xuanmen hunter hunted down the plant-alien hybrid Si Teng (Jing Tian) many years ago. Si Teng ran for her life, but it was impossible to get away from the unrelenting pursuer as she was pursued throughout Shanghai. The hunter killed Si Teng in a cruel act of piety and buried her body at the foot of a large cliff. If fate hadn't decided to step in, she would have stayed there forever. Si Teng is brought back to life through the inadvertent actions of a young architect called Qin Fang (played by Zhang Binbin) Si Teng awakens to a strange, foreign world.

Si Teng, perplexed by the jumbled memories in her mind, demands that Qin Fang both help her understand life in the modern era and help her retrieve her memories. Even though things don't go as planned, Qin Fang ultimately gives in to Si Teng's demands. Si Teng discovers what it means to live and love with Qin Fang at her side, but the broken memories of her past haunt her still. They keep looking for solutions because they are determined to unravel the secrets of her past, and their investigation brings them closer and closer. When the demon from the past refuses to die, how long will their happiness last?