Cassandra Rowling is the daughter of the Archangel Michael and Lilith. The queen of the underworld, with knowledge of an oracle telling about a creature born from the union of an archangel and herself, and she would be able to move freely between heaven and hell, once the transition was finished she was able to capture the warrior God's favorite and imprison him with magical strains. After having made him drink her own blood, a powerful drug for a blood so pure, she manages to seduce him. From their union Nemesis was born, whom would have been used fore for the queen’s vile purposes. Lilith's plans are altered by Michael's brothers, who, with the help of Marcus, a vampire, their ally, manage to free the warrior and take the little girl away from Lilith. Michael, however, knows that Nemesis will be safer away from him as well and after having imposed a seal to keep her hidden from the demons until the time of the transition, the baby entrusted to James Rowling, a friend and a hunter. The man, after a moment of uncertainty, accepts the assignment and Nemesis got the name of Cassandra. The girl will grow ignoring everything, but in the end Evil will find her and will tear her whole world apart, forcing her to play the role that fate has reserved for her.