Zi Sangbai and Huo Wurou, who dreamed of having a crush on their mother, killed their mother.
In order to prevent this disaster, Zi Sang Baihe began to pursue Huo Wurou passionately.
During the day, the two slept in class, and at night, the two climbed over the wall to exorcise demons.
A long-planned conspiracy gradually unfolded...
Zi Sang Baihe: How could he be a good demon?
Huo Wurou: How could he be a bad demon?
Purpose: Two men work together to exorcise demons and protect the world.