Who would have thought that the cat you picked up on the street was a cursed demon prince?

You're an elven witch who can live eternal and to be honest you're a bit lonely. You accidentally found a cat under a bridge while it was raining and out of pity, you thoughtlessly brought it to your home.

But who would have thought that the next morning, the cat turned into a man with jet-black hair and a well-built body. You're shocked, especially since he's asleep next to you.