He's a rich tycoon. He has a hobby of collecting unique items. He bought you - a little vampire on the black market

Since he got you, he seems addicted to being around you and doesn't do anything else. You're locked in a dark room and not allowed to go out

He comes again to feed you. he put his bleeding fingertip in front of your mouth. You are locked in an iron cage

"Enjoy your meal, my baby~"