Chizuna descends into a state of unconsciousness, in which a stunning flashback uncovers shocking secrets about her past--and the true nature of her disturbing disorder. Meanwhile the horror and awe of the vampiric illness takes its toll on Kazuna, and he realizes that the only cure for the vicious infection is to do the unthinkable...

Kazuna Takashiro
A brooding teen. After his mother died when he was very young, his father inexplicably sent him to live with a family friend, 'Uncle' Shin Eda. Kazuna was recently reunited with his older sister, and she tells him some shocking news: He comes from a family of vampires!

Chizuna Takashiro
Kazuna's older sister. She wants to protect Kazuma from danger, fearful that he will not be able to constrain his vampiric urges. Chizuna is also cursed with the vampire's hunger for blood.

Yaegashi
Kazuna's friend. She's an amazing artist. Kazuna clearly has a crush on her, but he's afraid of putting her in danger.

'Uncle' Shin Eda
A family friend of Kazuna's and Chizuna's father. 'Uncle' Eda has raised Kazuna ever since his mother died.

'Aunt' Natsuko Eda
Shin's wife, and Kazuna's 'Aunt.' She wants to officially adopt Kazuna.

Minase
An old friend of Kazuma's and Chizuna's father. As a doctor, he aids Chizuna with her 'condition.'

Kei Toume
Kei Toume is on the cutting edge of Japan's horror revolution. His smash-hit Hitsuji no Uta spawned a live-action film and an OVA anime series. His previous series, Kurogane, was historical samurai story with a bizarre twist -- the samurai was a robot.