Billions in post-apocalyptic stockpiling? Not as good as a bowl of braised beef noodles.

[Apocalypse + Safe House + Battleground of Warriors + No Mary Sue]
Five years into the apocalypse, Jiang Lingyue, on the verge of starvation, summoned a god-level landlady system, becoming the owner of the only safe house hotel in the world! The hotel boasts absolute defense and unlimited resource exchange!
A bowl of instant noodles led her to recruit a cold, S-rank ice-type thug, who fought his way out every day just to pay rent and get a hot meal.
Want to stay at the hotel? Sure! Even an S-rank big shot has to obediently go out hunting zombies to pay rent! Disobey? Try the hotel’s electric shock punishment and elimination package!
She thought her days of leisurely collecting rent were about to begin, but the “high-quality tenants” who came to her door were all strange!
A cold, aloof big shot insisted on guarding her door in the middle of the night, a wolf-like handsome guy begged to be taken in, a cunning doctor came seeking refuge…
Jiang Lingyue sighed, “Help! I just want to be a laid-back landlady, I don’t want a battleground of warriors!”