Demon Apartment

Demon Apartment is a supernatural mystery novel by the web writer Black Fireseed, created after Hell Apartment and serialized on Qidian Chinese from October 20, 2019 to its completion on March 15, 2022. The book runs about 2.19 million Chinese characters across twenty-two volumes, with related story arcs including "Hell Apartment" and "Shadow Pursuit." The story retains the core premise of Hell Apartment while standing on its own: once selected by Demon Apartment as a resident, one must complete ten life-or-death missions involving supernatural phenomena, each inevitably filled with incomprehensible eerie occurrences, and failure means falling into the netherworld. This is the book's main driving force, the mechanism repeatedly called the "blood-letter mission." The protagonist, Dong Xie, is a web novelist who specializes in supernatural fiction; he moves into the apartment to gather material and is drawn, together with his stepsister Dong Ning, into the cycle of missions. He must see through the killer's rules and find a way out in one bizarre situation after another, while also facing suspicion and scheming among unfamiliar residents. Li Yin and other familiar faces from Hell Apartment reappear, echoing the worldview of the predecessor. The work advances through an "infinite flow" framework: mission difficulty rises with each round, and to live one more day, residents must fight desperately against ghosts while guarding against those around them. The atmosphere of horror, the puzzle-solving of instance rules, and the games of human nature together form the novel's primary reading pleasure.