The Hooded Woman

Not much is known about the Hooded Woman, including her name. Though many of the details of their relationship have yet to be revealed, it's strongly suggested that she was the first woman with whom Kaname Kuran had a relationship after recruiting him to her side of the Pureblood/Founder war. She is a Pureblood Vampire and an Ancestor.

Character Outline
Though little is known about her, she was one of the first vampires instrumental in gathering together the scattered purebloods, including Kaname Kuran, and forming the beginnings of vampire society. She acted as a friend and mentor towards Kaname and worried over his solitary tendencies. However, despite all her work on behalf of purebloods, she also respected humans since she was born from human parents. She later sacrifices herself by allowing humans to drink blood from her and then tearing out her own heart and throwing it in a vat of molten metal, both acts designed to help humans defend themselves from vampires: Her blood gave them strength to fight vampires, and her heart allowed them to create anti-vampire weapons. Her sacrifice helped create the Vampire Hunters, and in the 69th night, Yuki observes that the Hooded Woman's presence still lingers over Vampire Hunter headquarters. She has not yet been named.

Plot Summary
Through a series of experiments, Kaname discovers in the 63rd and 64th night that the only thing which can kill purebloods is the flesh and blood of other purebloods. Firmly against the idea of humans being harmed, and also worried that Kaname intends to sacrifice himself in the creation of anti-vampire weapons, the Hooded Woman chooses to sacrifice herself instead. She gives the humans her blood and throws her own heart into a vat of molten metal. The blood she gave the humans made them stronger, and the metal she threw her heart in is used to create the first anti-vampire weapons, including Zero Kiryu's Bloody Rose gun, and Yuki Cross's Artemis rod. The Hooded Woman then dies in front of Kaname, exclaiming before her death that "It seems the only thing that can kill us, is ourselves." Kaname becomes distressed over her loss and is filled with remorse over his inability to protect her, worsened by his plan to use himself as the sacrifice.