Black Butler [Ciel x Reader x Sebastian]

ever sense your parents dissapeared and your sister died you've lived with a drunken brother all your life and you've learned to cope... but what happens when your brother dissapears and all you have to lead is a man that wants to kill you and a butler with his master who have come to help you find out the truth. will something tie the three of your destiny's together.. or will you end up like your parents. gone and never to be heard from again.