, alternatively titled The Lament of a Lamb or Sheep's Song, is a Japanese horror manga series written and illustrated by Kei Toume. It follows Kazuna, a boy with a mysterious illness which turns out to be vampirism. It was adapted into a live action film in 2002 directed by Junji Hanado, a three-part Drama CD in 2002-03, and an anime OVA series in 2003–04. The manga was licensed in North America by Tokyopop, and in Russia by Comics Factory. Story The story centers on Kazuna, an "average high school student" who starts to lose control at the sight of blood, or even just a blood red colour (as seen in volume one when Yaegashi shows him a bottle of red paint). This problem is traced down to him being a vampire, like his lost sister, Chizuna, who he now turns to for help. Kazuna lives with his "aunt" and "uncle" (both of whom are actually old friends of his father), after his mother died, and his father took Chizuna and left. Kazuna is friends with an aspiring artist named Yaegashi, who later learns about his condition. They both have feelings for each other at the beginning of the story. Kazuna and Chizuna's father had committed suicide six months before the start of the (manga) story and trying to understand his suicide is one of the central plot points of the story. Main characters Kazuna Takashiro Played by: Shun Oguri Chizuna's younger brother. Recently afflicted by a "vampiric" condition that is passed down through the Takashiro family. He has his mother's last name. In the first volume of the manga series, he admits to himself he's in love with Yaegashi, but later pushes her away after he has a dream in which he killed her for her blood. As Kazuna slowly cuts ties with Yaegashi, he begins to fall in love with his sister. The two even kiss (once in the anime, twice in the manga). For his disease Chizuna gives him two bottles, one of a serum that gives her some relief, and one for suicide, if it becomes too much. At the end, with Chizuna near death, he declares that he will take the suicide medicine, because he can't think of living on after she dies. Later both are shown unconscious on the floor of Chizuna's bedroom, an empty bottle by his side. The anime ends at this