My Fortress in the Apocalypse Is Fully Upgraded

Previous life: Framed by the scumbag Shen Hao and his best friend Yuan Jinjin, he was pushed into a tide of corpses and died tragically when the apocalypse broke out. Rebirth: Go back to a month before the end of the world and awaken the "infinite storage space" and "fortress upgrade system". Personality: Online IQ, decisive in killing, never a virgin. Show gentleness to those who deserve it. Goal: Live better than anyone else in the last days. No CP, no male protagonist. All male characters serve the plot. Revenge does not take place overnight. Never show mercy to the enemy. Warm and funny coexist.