Two Faced Lover (A Black Butler/Kuroshitsuji fanfic)

A trained swords assassin who has lived life in complete and utter darkness, is finally freed by the Phantomhive family. To serve as not only a maid, but the lord of the manners second hit man. After being contained in darkness for most of her life, number 17 gains a second personality that catches Ciel's interest. Bu...