TravelDoomsdayShelterMultidimensional
The gold medalist was tricked into bankruptcy by his boss. When he jumped from the building, he was bound by the high-dimensional system and became a real estate agency in the apocalypse!
The vending machine is a safe house, the sewer manhole cover hides a fortress, and zombies, behemoths, and Cthulhu's doomsday can be invaded one by one.
Are the customers human? Zombies? Blood clan? Outer god?
It doesn't matter. Do you want to pay in full or in installments?