memory but Anju, Karin's older sister, stops him from doing so. She convinces her parents Henry and Calera to make Kenta their ally, because he can help Karin during the daylight. Karin and Kenta become friends, and as they spend more time with one another, fall in love, though they are slow to admit their feelings to one another. Yuriya Tachibana, a human-vampire hybrid, moves to the area at the request of her vampire uncle, Glark. By chance, Yuriya gets a job at the same restaurant where Karin and Kenta work. As hybrids are sterile, Tachibana disapproves of Karin and Kenta's relationship, feeling any children they had would be unhappy like her. Despite this, Karin likes Tachibana and considers her a friend. On the other hand, Karin's grandmother Elda hates hybrids, as a betrayal danger to vampires. Karin rescues Yuriya from her grandmother. Karin is unaware that Tachibana is actually there to help her uncle and the Brownlick clan spy on her. After another nose bleed leaves Karin comatose for several days, Karin's family ask Kenta to give her some time alone, but the two lovers are unable to stand being apart and eventually reunite and become a couple. Shortly after they share their first kiss, Tachibana helps Glark and Bridget Brownlick kidnap Karin and take her the Brownlick estate. It is revealed that Karin is a "psyche", a blood-giving vampire that can give life to other vampires and heals the sterility currently plaguing all vampires. In doing so, however, vampires have historically been greedy and drain the psyche dry, killing her as a sacrifice. The first psyche, Sophia, reveals herself to Kenta but cannot be seen by anyone else while helping Kenta find Karin. Karin's father Henry, her brother Ren, and Kenta go to rescue Karin. Meanwhile, Tachibana is horrified to learn that not only will Karin be killed, but also raped until she has a child to produce a new psyche to replace her. She apologizes to Karin for disapproving of Kenta's relationship and for hurting Karin, and helps her escape just as Kenta comes in with Ren. While Ren takes care of the vampire, Bridget, holding Karin captive, Henry battles Glark and the Brownlicks, joined belatedly by his mother Elda. Kenta, Karin, and Tachibana escape, but Tachibana leaves them to go ensure her uncle won't be caught in the sun. It is later revealed that Karin shared