Itsuka Tenma no Kuro Usagi

Taito has been really sleepy lately, and keeps dreaming of a female vampire who says she has given him her "poison." Sometimes he even thinks he hears her voice when he's awake. But after surviving an accident that should have killed him, Taito's world changes drastically and he realizes that his dreams are more real than he thought.1st year high school student Kurogane Taito is a disillusioned youth. He has thrown away the belief that hard work and effort will be compensated. Now, he simply exists as the days pass him by. However, there is something that he has forgotten. A stolen memory of a girl, a pact, and a curse. 9 years ago, the young Taito had met Saito Himea, the eldest vampire, and made a pact with her.