The apocalypse descends, anomalies run rampant, and humans can only struggle to survive in the wasteland. Ye Chuan accidentally time-travels and binds the "Apocalypse Hotel System", starting out with a dilapidated inn. While others run desperately when they encounter anomalies, he opens the door and says, "Welcome to check in!" A ferocious fog demon becomes a waiter, a chilling frost charm transforms into a receptionist, and even disaster-grade monsters are subdued and become employees. As the hotel continues to upgrade, Ye Chuan builds the only safe sanctuary in the apocalypse. When various forces covet resources and an army of anomalies descends upon the wasteland, they finally realize that the most terrifying existence is not the abyss monsters, but the boss who controls the hotel rules!