Care To Dance? (Ciel X Reader,oc, X Sebastian)

Layla spectre, eir to the spectre mansion had to deal with loss at a very young age. No her parents, well adopted parents death was a time for celebration, she lost her sister to her mothers beatings and their father would try to rape them.
Until a fire burned the mansion and the two parents inside
Victi, age 15, lived with her always faithful servants and demon maid clareese. She is one day given a letter that will forever change her life.