My reborn sister stole my nine-life catman, but she doesn't know that every time the catman dies, her hatred deepens.

In this world, every human turns eighteen and gets to choose a Beastkin.

In my last life, my parents always favored my older sister. They brought her a Merman whose tears could turn into pearls.

I, on the other hand, chose an utterly ordinary white cat Beastkin.

Then, the high-temperature apocalypse hit. The entire world was plunged into chaos, resources became scarce, and everyone fended for themselves.

The Merman’s pearls, no matter how many there were, couldn’t buy a single cup of ice water. But my white cat Beastkin had nine lives.