Beatrice Sophia Midhat
Beate (as she is most commonly known as) is the grandaughter of a very wealthy advertiser. She is first seen running through her grandfather's castle away from ghouls chasing her. Apparently, she was attempting to find a vampire, as it is later revealed that she is obsessed with the occult. After she is saved from a vampire by Sirius, she kisses him, seeming to indicate somewhat of a crrush on him. She later becomes the benefactor who funds Sirius's organization, and somewhat of a partner (as Sirius's boss puts it, an observer).