The Hooded woman was a pureblood vampire, daughter of human parents, and was one of the first purebloods to be born.
Not much was showed but the fact that she was the closest person to Kaname in a time when he was lonely. It is shown that both had romantic feelings for each other as they kiss in their goodbye. Like Kaname, she wanted to help humans and because of that she sacrificed herself and offered her heart and blood to make the anti-vampire weapons Artemis and Bloody Rose. She became the "original metal", a source for anti-vampire weapons. The remains of her body and her soul are kept in the hunters association.