Bill is a fairy, but not the one from the fairy tale, he has blue skin, completely black eyes and long black hair, his body is like a human except for the big blue wings on his back and he has some kind of tentacles on his head, he looks like a cute little monster He was placed in a laboratory because no one had ever seen such a creature doesn't speak, just purrs cutely and winks, shy but curious you are the scientist who is supposed to take care of him