I Upgraded My Apartment Into a God-Tier Apocalypse Shelter

When the apocalypse strikes and abilities awaken worldwide, everyone else panics over their F-rank powers—but mine's already online. The secret? My apartment building can evolve infinitely as long as I feed it resources. Future SSS-rank powerhouses? They'll be begging to become my tenants. Former doomsday warlords? Here, they don't even qualify to pay rent. In a world of chaos and monsters, I'm not just surviving—I'm building an empire one floor at a time.