Karl is one of Diva's Chevaliers and serves as the chairman of the all-girls school in Vietnam that Saya attends. It is later uncovered that he is the enigmatic phantom haunting the school, known for distributing blue roses to his chosen victims. Following the loss of his arm during a chaotic encounter with an out-of-control Saya amidst the Vietnam War, Karl became fixated on recreating that fateful event. This relentless obsession ultimately leads to his downfall.

fei-ong karl
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Haji
Supporting
Birthday: August 5Zodiac: LeoHeight: 163 cmWeight: 45 kgAs of episodes 84-85, their gender remains unknown.Haji is Kozenigatas sidekick. Before joining Kozenigatas team, they were a thief. ...
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Miyagusuku Kai
Main
Saya's adopted "elder" brother. Once a popular student at school and a star athlete, he quits playing baseball shortly before Saya's arrival and has been getting into more fights at school. His father's death forces him to grow up and try his best keep hi...
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Otonashi Saya
Main
Saya is the main protagonist who hunts chiropterans using a katana. It is implied that she is the last remaining vampire and called "the only remaining original." Saya has no weakness to sunlight, although it is unknown if she has any of the other vulnera...
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Argiano Van
Supporting
Van Argiano is the head scientist studying chiropterans for Cinq Flches. He was in charge of the development of Delta 67, working under Solomon and with his assistant Archer. After Solomon defected from the group, Amshel appoints him to the head o...
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Carl Charles
Supporting
Character from the Blood+ Manga. He is the equivalent of Karl from the anime. He is Diva's favourite Chevalier....
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David
Supporting
David is an artist and leader of the team that placed third in the previous Hangenkais Selection Battle. His dream is to create the "ultimate wall painting". Davids ability is to become invisible for 3 minutes after throwing chalk dust over his body....
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Diva
Supporting
Saya's twin sister and the story's main antagonist. Diva was born in 1833.She provides the Delta67 (derived from her blood) which is used to transform people into Chiropterans. When she was born she was kept in an isolated tower as part of an experiment. ...
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Fei-ong Karl
Supporting
Karl is one of Diva's Chevalier and the chairman of the all girls school in Vietnam that Saya attends. He is later revealed to be the mysterious phantom of the school who gives out blue roses to his victims. After losing his arm to an out-of-control Saya ...
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Goldschmidt Vi Joel
Supporting
Joel Goldschmidt, current head of the Red Shield. His "diary" is a record of Red Shield's activities since its formation, and also contains information regarding Saya, Diva, the Chevaliers and the Chiroptera. He is a direct descendant of the original Joel...








