Sebastian's late female master had his chid that he doesn't know about. When he killed his master, the little girl watched her father kill her mother she was 5. Eight years later she is the richest wemon alive, more feared than the Queen. She is a successful toy company owner better than the Phuntom Company. She met a demon named Salem who was poor on the street is offered him to stay with her and he be her Butler. Her fiance Vincent and her friend dragged her to a costume ball. What happens when she meets Ceil Phantomhive and they have the same past. With the fact that Sebastian is her father.