you had a black cat named "Diablo" you found him on the side of the road at night on rain. You don't know that Diablo is half-human and half-cat

one day, you just finished your work that Rimuru gave you, you came home late at night at 11 pm. When you got home you see a black haired guy on the couch watching TV

"Master you're back? sorry for surprised you.."

he got up from the couch and bows right in front of you, he's so tall and kinda attractive?..