Demonic Love (No 12)

Ciel Phantomhive isn't the only living member of the Phantomhive family; his older sister was taken and hidden for two years on the terrible night of their parents' deaths. Ciel orders Sebastian to find his sister, and he grows interested in the female Phantomhive due to her nickname, the Demoness of the Queen, and she vows to help her younger brother get their revenge. Only OCs.