Although her parents' surname is Marker, Karin spells it in Japanese (Maaka), in common with her brother and sister.
Karin lives in জাপান with a vampire family, the Markers.
However, instead of having to drink blood like normal vampires, Karin's body overproduces blood. Eventually, once a month, she reaches a point where she can no longer hold it in, and she must bite someone to inject her blood into them. Doing this prevents her from suffering a massive nosebleed.If Karin goes too long without biting someone and tries to hold her blood in, she enters a "berserker"-like state and aggressively attacks the first target she as can find.
Karin lives like a normal human rather than a vampire. She lives in the daylight, is not susceptible to common vampire weaknesses(for instance, smelling garlic doesn't seems to bother her) and lacks the skills normal ভ্যাম্পায়ার have. These differences cause her to be somewhat separate from her parents and older brother, whom she only sees for a few hours in the time before she goes to sleep (she spends আরো time with her younger sister Anju, who has not yet awakened as a vampire).
Although Karin gets her looks from her father's side of the family (she is the spitting image of her paternal grandmother, Elda Marker) she has inherited an ample bosom from her mother, much to the chagrin of the flat-chested Elda, who despises her daughter-in-law. In the anime, Karin's impressive chest size is instrumental in defeating a vampire hunter, the grandfather of Winner Sinclair, who faints at the sight of her exposed breasts whilst trying to kill her. Karin's chest is also the subject of some jealousy and teasing দ্বারা her friend Maki.
Being a daywalker and food-eater presents many problems for Karin: she alone consumes খাবার and needs electric lighting etc., and so her family make her pay for these things herself দ্বারা taking a part time job as a waitress in a restaurant. Since she must make all her own meals, she has become good at cooking.
Her peaceful school life changes when a new transfer student, Kenta Usui(Usui Kenta), shows up. Her blood reacts to him because he suffers from unhappiness, and that is Karin's preference in blood,in other words she is drawn to people who have an aura of unhappiness about them, and their presence causes her blood to multiply, forcing her to bite them. However, as with the other ভ্যাম্পায়ার in the story, when she bites a victim she draws out of them that quality which attracts her, ie. their unhappiness. This leads to her victims becoming happy for a few weeks after being bitten.
In order to avoid nose bleeds, Karin tries to stay away from Kenta as much as possible. And it is not easy because they are in the same class and work at the same restaurant.As the series progresses, Karin falls in প্রণয় with Kenta.He returns her feelings, though Karin is initially troubled to learn that human-vampire children are born sterile.
Karin is rendered unconscious for several days after trying to hold in her blood, during which time her family grows increasingly concerned that her condition would kill her. Her mother journeys to her birthplace in খুঁজুন of উত্তর and learns that Karin is a rare vampire, called the "Spring of Psyche", that is born when the vampire species is struggling. The blood Karin produces can bestow fertility in other vampires.
Karin is later kidnapped দ্বারা ভ্যাম্পায়ার who want to feed from her to rejuvenate their own lives, though it will kill Karin in the process. They also plan to impregnate Karin against her will to continue the Psyche's existence. After Kenta and the Marker family save Karin from the Brownlicks, her nose-bleeding ceases, leaving her as though she were a normal human, who will likely grow old and die. Her family erases all of her memories of vampires, including themselves, promising Kenta that they will continue watching over her happiness although she will not know them. At the end of the series, Karin and Kenta have married and are shown to have a teenage daughter named Kanon.
In the জীবন্ত adaptation, the blood-making issue and Karin's capture are not mentioned. Instead, Karin has the opportunity to become a full vampire, which she initially declines, but then pursues after Kenta encourages her. The transformation is interrupted and Karin goes berserk. Kenta comes to her rescue দ্বারা volunteering to be bitten, ending the berserker rage, confirming their romantic relationship and simultaneously resolving Karin's issues with being a blood-maker.
Age: 16
Sex: Female
Race: Vampire
Character type: Shy
Occupation: High School Student
Special ability: Blood maker, takes away unhappiness
Birthday: October 13th, 1987
