When the red mist envelopes the world and the doomsday approaches, Lin Feng accidentally awakens the doomsday survival system. He fought decisively, spending all his money to build an indestructible alloy fortress, hoarding mountains of supplies, and gaining a foothold amidst the waves of corpses and predators. System assistance, fortress upgrades, material monopoly, and a group of stunning survivors with 90+ looks gathered under their command, each showing their strengths in medical care, combat, technology, and management. From guarding the fortress alone to establishing a human alliance, Lin Feng used his calm tactics and absolute strength to write his own legendary and ambiguous chapter of survival in the apocalypse.