Broken Souls, Broken Pawn. Ceil X Reader

Hello, I am the head of the (L/N) manor, (Y/N). I am the Queens Angel, and my parents and brother where killed by assassins. Good thing my butler, Attchi, was there, I have made a contract with Attchi and his contract circle looks like a angel wing. The Queen is my aunt and she entrusted me with the ring my mother wore before her death, The blooded Dragon fire gem, ever since then I have not felt like a normal girl, somethings...off. I have received a letter from a aunt to help Earl Phantomhive, his butler Sabastain Miscalis, Earl Trancy, I despise him and his cocky butler, Claude. Ugh. Why does the Queens Angel have to go and get her paws dirty on one simple mission?