Akari Yano

Akari Yano, the older sister of a vampire obsessed brother, who hates nothing more than vampires (with a slight brother-complex). She is discovered to have the unique blood of Czernobog wich is only possessed by one human every 300 years. A stray vampire named Iko comes after her for her blood, thinking it would give her more power, but instead finds herself enslaved to Akari's blood.