A must-see classic! Zhang Yixing, a member of EXO, works together with Zhao Liying and William Chan to present the drama based on the novel "The Mystic Nine" by Uncle Three! Zhang Qishan, an officer in charge of defense of the city, asks Er Yuehong, a connoisseur, for help to solve the mystery of the mine. What amazing things will happen later?...

Xia Dong Qing (starred by Liu Zhiyang), who appears to have no sense of existence at all, has a hidden secret, he can see the other world of beings. Having grown up in an orphanage since childhood, he has just graduated from university and is preparing for a postgraduate entrance exam while looking for a job. In the meantime, Dong Qing is hired by 444 Convenience Store. It is said that this convenience store is haunted after midnight, but it turns out that this is the connection between two different latitudes in space. ...