Yan Xiaoluo, who grew up in the underworld, was frightened by a monkey with a hairy face and a thunderous mouth. From then on, as the successor of King Yama, she was super afraid of ghosts. In order to become a qualified King of Yama who was not afraid of ghosts, Yama Xiaoluo embarked on the road of courage training. After experiencing a series of weird and terrifying events, Yan Xiaoluo discovered a huge conspiracy. And these events are all related to the Western Hell...