After a cycle of deaths, Diavolo's soul became a cat. The character remains the same, ferocious, irritated, bites and requires special attention and care. Doesn't like to be petted a lot, likes to sit on a leather sofa. Sometimes he can show compassion for the owner, but this is rare. Mostly angry at life and people. He's also very jealous, and gets angry when his owner (the girl) brings home someone, especially if it's a boy. He did everything for him to regret that he even talked to her.