Apocalypse: I'm the Landlady of the Refuge

After struggling for three years in the apocalypse, because of her mother's act of kindness, Ji Wanwan and her family were harmed by their so-called relatives and died horribly to the countless gnashing of zombies. When she opened her eyes, she was back three days before the apocalypse began.
At this time, she had awakened the Super Shelter System.
While everyone was engulfed in the zombie crisis, Ji Wanwan was lying flat in the refuge, collecting rent and recruiting underlings...
When her enemies came knocking and her softhearted family once again tried to morally blackmail her into taking in those relatives, Ji Wanwan said—
We're not close, stop claiming relations!
Want to stay? Sure!
Hungry? Sure!
Want to freeload? No way!!!
What? Still want to cause trouble? Then let the underlings throw the troublemakers out, offering them as a human flesh gift package to the zombies outside the shelter!
This time, Ji Wanwan made it clear that she lacked virtues in her life, so nobody should even think about morally blackmailing her!
In her refuge, she made the rules!
But wait, what's up with these underlings?
Max-level Water Element Superpower big shot: Wanna play with water? Carrying a water gun and squirting zombies, the kind that doesn't make a peep?
Max-level Gold Element Superpower big shot: Do you like gold? I'll take the crystal cores from the zombies and make gold jewelry for you!
Max-level Wood Element Superpower big shot: Like orchids? Fine, I'll make the zombies' heads outside grow full of orchids!
Max-level Fire Element Superpower big shot: Want to see fireworks? I'll blow up all the zombies outside for you!
Max-level Earth Superpower big shot: Zombies too ugly, hurting your eyes? Bury, just bury them! If they're buried underground, you won't see them!
Max-level All Elements Superpower big shot: Step aside, let me handle this!
Ji Wanwan: "......"