Karin is a kind yet sometimes shy vampire and is the main female protagonist of Chibi Vampire. She has a blood affinity for people with unhappiness, meaning unhappy people trigger her desires to bite them. Unlike normal Vampires however, instead of sucking blood, she infuses them with her own massive amounts of blood, being a living blood transfusion. If her vampire urges becomes too powerful and she doesn't bite someone, she will have a massive nosebleed instead to expel her blood