Apocalypse + abundant supplies + laying low + infinite storage space + invincible
The apocalypse arrives, and humanity struggles to survive.
Wang Qian has the Apocalypse Mall at his disposal, stocked with just about anything you could want.
Running low on food? The Apocalypse Mall has all you need!
Not enough firepower? It's got weapons and ammunition galore!
The mall is great in every way, except it's a little expensive. You lot, get out there and kill some zombies already!
Once he's saved up enough money, he'll get a spatial ability and head overseas. Foreigners, don't be afraid. Your God won't save you, but I will, as long as you work for me. Naturally, it'll be under-the-table work!
It's the end of the world. If you have money, you don't upgrade yourself first and buy a superpower. If you have too much money, you have to do fancy things like adding some attributes to your team.
It's okay, but something's not right
Very well written. This is normal apocalyptic writing.