YMMV: Karin

  • Crowning Moment of Heartwarming: During a flashback, when Elda is struck by a craving for blood due to not feeding for a while, she tackles Alfred to the ground. Even with her snarling down at him with glowing red eyes and sharp, pointy fangs, Alfred is taken off guard for all of three seconds. Then he relaxes and tilts his head to better expose his neck for her. D'awww...
  • Esoteric Happy Ending: Yeah, Karin and Kenta have their happy ending, but, the vampires will likely become extinct because all of the women, sans Calera, are infertile. Then again, Ren has a son by Bridget...
  • Ho Yay:
    • A good part of Episode 18. Ren thought that his classmate, a Bishōnen boy, was a girl. However, he realizes toward the end what the thrumping in his chest is: he discovered his blood's infinity. So he naturally grabs the boy and sinks his teeth into his neck. The reaction from three male students is pretty similar to a Yaoi Fan's.
  • Memetic Mutation: OH MY GAHHH! NOOOOOOOOOOOOOOOOOO!!!
  • Narm: Pretty much the entirety of the English dub of the animé, to the point where it's downright unwatchable for some viewers.
  • Nightmare Fuel: Boogie, an already creepy-looking doll with a knife attached to his hand (holy shit!), can turn into a sanity-destroying monstrosity. With a knife. Yeah, dolls are scary.
    • Berserk!Karin, when she holds her blood in too long. It's shown that any vampire who does not bite a human on a regular basis has a tendency to slip into it, but seeing adorable little Karin reduced to primal fury is its own kind of scary.
  • The Woobie: Karin is the black sheep of the family because of her ability to give blood, stay in the sunlight, and eat human food, and thus, she is one of the loneliest vampires. When her little sister Anju becomes a full vampire, she realizes how alone she is and she cries as she makes breakfast for herself.
    • Also, you can't say you don't feel sorry for her when memories of her family is erased and she thinks of them to be dead after graduation.
    • Iron Woobie: Elda. She could have had what Karin had, and it's clear that even now she dearly misses Alfred. Unfortunately prejudice against vampires was at full swing at the time, and her affinity (love) was the final nail in the coffin for their relationship.
    • Yuriya Tachibana, who is a half-vampire, half-human hybrid. After her father died, her mother struggled to raise her alone, and passed away from the stress. Her first biting victim was someone she loved back in junior high, and, as a result, she was forced to leave town. She is ostracized by the rest of the vampires because a "half-breed" outed the existence of vampires to a human church a hundred years ago, and they were nearly wiped out, and they see her as a threat. Elda almost killed her until Karin intervened, and Bridget is especially nasty to her, calling her an "empty doll" and suggested that Yuriya kill herself, but hasn't yet because she doesn't have the courage to do so. Her Uncle is the only person she can rely on.