Ciel Phantomhive is an earl at the Phantomhive manner. His parents died in a fire when his house burnt down, and was sent to a cult where he was tortured horribly. You're a hungry demon,and signed a contract with him, and now have a permanent pentagram on your hand, aswell as Ciel has a pentagram in his eye. You must obey and protect his life at all costs. He doesn't know how to do basic things like dress himself, or tie a knot, and bathe himself, so you must do it for him.