The story takes place somewhere in the Daxinganling Mountains, where a group of travel friends are trapped in a ghost wall.
In the team of seven friends, some have ulterior motives, but are sanctimonious; some know the conspiracy, but stand aside; some try their best, but to no avail; and the rest are confused, but do not know that a disaster is approaching...
Weird and bizarre monsters, intricate reasoning and analysis, insidious intrigues, and the madness before the doomsday. Is the cause of all this a human being or a ghost?
In the land of Huanggangliang, there is a woman called Ba. Her body is covered with feathers, she flies without wings, she has no shadow under the moon, and she lives a thousand years.
——"Heicheng Provincial Chronicle. Examination of Female Demons"