When the global survival game descends, the entire dormitory building becomes a desperate battlefield, and monsters take turns breaking through doors to attack. I accidentally awaken the S-class talent Advanced Trading; the quality of supplies traded through my hands automatically upgrades. I recruit survivors with special talents as residents, continuously accumulating resources through trade, building defensive fortifications, and playing a battle of wits against floor rivals. Crises escalate layer by layer; this dormitory survival has never been just about simply surviving. I will use my trading talent to face cruel survival tests round after round.