Summary
Catherine hails from an unnamed aristocratic lineage within the vampire society, which granted her an invitation to the Marquis Machina's Bal Masque along with her mother and younger sister. It was at this event that she met Vanitas, eventually discovering that he is a human physician dedicated to curing vampires of the curse inflicted by Vanitas of the Blue Moon, a mission driven by his desire for vengeance against the Blue Moon Vampire.
