This work builds a unique world view based on the core contradiction of "the rules of the mental hospital are the entrance to a different space". The 10 patient rules published in the "Qingshan Mental Hospital" in the table world (such as "No looking in the mirror after 10 o'clock every night" and "Never respond to the 'doctor' in a white coat") are not ordinary management systems, but the key to the space passage connecting the "pollution realm" of the other world. Violation of the rules will directly trigger the phenomenon of mental pollution, and its clinical manifestations will worsen in a gradient: hallucinations and fragmented memory loss in the early stage, cognitive disorder and personality dissociation in the middle stage, and in severe cases, complete alienation into a "contaminated body" monster that has lost its mind. This setting not only integrates the core elements of "the interweaving of supernatural phenomena and modern society" in the urban martial arts theme, but also strengthens the tension of the "survival game" of the suspenseful imagination type through the rule triggering mechanism.