The Demon's Angel (Sebastian x OC)

Black Butler Fanfic

Lady Rosemarie is the cousin of Ciel Phantomhive. She visits him after not seeing him for four years, only to notice he is as closed off as ever. She tries to regain touch with him, and she slowly does with the help of his butler.

The butler. A mysterious man who is almost inhuman. But what can she say about that, she isn't exactly human either.

She follows her cousin and the butler on their trips and learns new things. About herself. About a certain butler. And things she thought were impossible.

Like demons and angels.