After running a high fever and being unconscious for three days, college student Xu Yiwang dreamed of doomsday horrors. Upon waking up, the midsummer campus was suddenly gripped by severe cold, and a mysterious system announced the start of the doomsday game, instantly turning the entire dormitory area into an isolated island. Relying on the warning from her dream, she led Xie Yue, Wen Cai, and Ning Yiwei to preemptively hoard supplies and medicine, and arm their dorm room. Facing extreme cold, insect plagues, floods, scorching heat, and monster sieges, the four girls with distinct personalities supported each other, unlocked bizarre professions, reclaimed wasteland and farmed, turning the small dormitory into a safe house, and joining hands to carve out a path to survival.