Marian Cross never thought the outcome of a one night stand would be a daughter, a fellow exorcist none the less. Rosemary Cross was dumped on her father at the age of twelve after her mother died at the hands of an akuma. After four years of training her in combat, Marian takes her to Black Order HQ in Europe, where innocence inevitably bonds with her. But then the Earl comes knocking. And he isn't alone.