The Heavens Have a Cute Ruler: A Catgirl Loli and Her Mutant Plant System

The myriad heavens, a System, turning into a girl, catgirls, the Fourth Calamity, a Plants vs. Zombies fanfic? (Note: It contains plenty of original worldbuilding and isn't a straight adaptation.) Invincible.

Ye Yu turns into a little girl just as the apocalypse breaks out and zombies overrun the world. Just as she's about to give up and coast through life, the System appears. From then on, Ye Yu lives a life without beef.

And as it happens, Ye Yu falls for the System's trick?

She turns into a catgirl!

Even as a catgirl, she's going to conquer the myriad heavens and give the System a little training while she's at it…

“System, hurry up and give that to meow… and this one, and that one too…”

“Meowahaha! They're all mine, all mine!”

“S-System, what are you doing, meow?!”

“Meow… no… sob…”

“Good girl. I'm yours too.”