Tang Yunluo, an ordinary student at Shengxu Academy, has another identity as a heavenly master. The Tang family has been a famous family for killing demons for generations. Her job is to take on all kinds of bizarre cases and occasionally receive high rewards without telling her parents. Xiaozhu, a freshman, was attacked by Miao Gu as soon as he entered the school and got to know Tang Yunluo. However, in addition to Gu masters, there were also various demons and monsters in Shenglan City, which caused more strange events. The order of the world seemed to be in chaos, and all the mysteries lay in the ghost king Xuanyuan Mochen. The man who exudes the smell of evil spirits was once the Heavenly Master of Kunlun? What kind of bond does the handsome but evil ghost king Xuanyuan Mochen have with Tang Yunluo and Li Yuanxi?