Jiang Qi, the borrowed-corpse-reviving Black Impermanence, is assigned a task by King Yama Bao Lingyi to start a ghost science popularization live stream in the human world. Teaming up with spirit-exploration streamer Zhou Ming, he juggles dealing with millions of viewers in the live streaming room while handling one yin-yang grievance case after another. The two help wash away the grievances of the wrongfully dead Li Xiaoyun, and travel far to Wuzhen to resolve the century-old underworld wedding grudge of the Lin family's old residence. Possessing vast connections across the three realms, Jiang Qi loves to slack off and complain in his daily life while staying true to his original aspiration, resolving all kinds of monster and soul disasters, and gradually letting ordinary people know the truth of the yin-yang world.