Yuriya Tachibana

A woman who moves to Shiihaba in an old apartment and first appears in Volume 8 of the manga. She works with Karin and Kenta at the family restaurant, "Julian". She has moved to Shiihaba in search of a certain kind of vampire, as per request of her uncle.

She is half human half vampire, every once a month she needs to drink blood and stay in the dark.

(Source: Wikipedia)