In the third year of the virus outbreak, 99% of humans turned into bloodthirsty monsters, and the remaining 1% lingered in the ruins. Jiang Che, a real estate planner before the apocalypse, did the opposite when everyone was hiding in the mountains and forests - he transformed the strongest building in the city into a safe house, used zombies as natural barriers, and used real estate thinking to redefine the rules of survival in the apocalypse. Three years later, when all survivor bases were on the verge of collapse, his "city within a city" became the last safe zone. The military came, the plutocrats came, and the people with heavy troops came, and they all wanted to take away his city. Jiang Che stood on the top of the building, looking at the dense crowd of zombies downstairs, and smiled: "You want to rob my city? First ask the one million 'security guards' outside if they agree."