This work builds a distinctive world around the central premise that “the rules of a psychiatric hospital are gateways to another dimension.” The ten rules for patients posted in the surface world’s Qingshan Psychiatric Hospital, such as “Do not look in a mirror after 10 p.m.” and “Never answer the ‘doctor’ in a white coat,” are not ordinary regulations. They are keys to spatial passages connecting to the inner world’s “contaminated domains.” Breaking the rules directly triggers mental contamination, with symptoms worsening in stages: early symptoms include hallucinations and fragmented memory loss; in the middle stage, cognitive confusion and dissociative identity emerge; and in severe cases, victims mutate completely into mindless “contaminated” monsters. This premise combines the core elements of urban high-martial arts fiction, where supernatural phenomena intertwine with modern society, with rule-triggered mechanics that heighten the suspense and survival-game tension of imaginative mystery fiction.
