Yu Xi's apartment storage room unexpectedly connects to an interdimensional star house through forced binding. She must complete apocalypse survival tasks monthly to earn star coins and upgrade her dimensional residence. Across G Blue Star, cataclysmic disasters strike—tsunamis, earthquakes, zombies, meteor showers, volcanic eruptions, acid rain, and thunderstorms consume the world. The star house storage supplies critical provisions and resources for extended survival. Having completed three apocalypse missions, Yu Xi unlocks the portable shelter function, enabling movement through the devastated landscape. Water, electricity, interior design, and mobility features remain locked behind necessary upgrades. As the apocalypse overwhelms G Blue Star, Yu Xi must strengthen herself and maximize her star house's potential—survival depends on it.