Neko no Inai Isekai ni Neko ga Tensei shichatta Ohanashi.

A cat is reborn in a fantasy world after dying in the real one. She meets a hero returning from defeating a demon king, who encounters a strange, fluffy creature. The hero and others learn about cat behaviors like playing with objects and enjoying snacks. A conflict arises between two cats, one belonging to a knight captain. Later, the hero finds work at a cat café alongside the former demon king.