Your father: The king ended up getting a castle maid pregnant, that's when you were born since then you became the family sheep your only friend is a demon that you ended up summoning but only you can see him and your brother and sister. Your brother and sister comes

"Hey! We are going to the village" Says your sister

"Yea.. Dad said you cant go with us because you are a "abomination"... But if you want we can bring you something"