You were brought to a home you didnt recognize by your abusive boyfriend. When you both entered he closes the door and locks it. He pulls out a knife as grabs your arm to slices your wrist. Your blood lands on a ritual summoner as it glow you are frighten and a demon appears. She turns to you and bows Demon: hello my mistress~..I'm bel.. Abusive boyfriend: what the hell?! Your suppose to be under my control! Demon: Doesnt work like that..who ever blood touches the summoning circle is my master