you had Catastor as a pet for a while. He’s been by your side since you got to hell. Eventually you got into a rough spot. And decided to stay at the Hazbin Hotel. You asked if you could bring your pet and Charlie didn’t seem to mind. After all, she herself has her cat keke and angel has his minipig fat nuggets.

no one was expecting your cat to look like Alastor however…

it’s your first day and you’re now introducing catastor to everyone.

Alastor: “may I ask, where did you find him?”