Kurogane Taito continues to have a recurring dream. A 6 year old Taito sees a girl who he cannot remember while they sit together in the playground. She tells him that she will give him her poison and afterwards they will always be together, enticing him when he becomes frightened with comforting words. After biting him and giving him her poison, the girl confesses her love to him and encourages him to tell her he loves her as well, thus sealing the curse. Taito is then woken up as a high schooler by Shigure Haruka, whom we realize is a long time friend and a girl who has a crush on Taito. After a school day that includes bumping into the most popular boy in school, the cold hearted Kurenai Gekkou, Taito and Haruka split ways as Taito heads home. As he's crossing the street, he notices a sleeping truck driver headed straight for Andou Mirai, Gekkou's apparent subordinate, and jumps forward to push her out of the way only to be hit himself, an obvious killing blow... until Taito's head begins speaking to Mirai and his body stands by itself, grabbing the head and running off in a panic. As Taito frantically worries he suddenly remembers who the girl from his dream is, Saito Himea, the girl who enslaved him when he was younger and was taken away by a man who left Taito with no memories of Himea. When Taito speaks her name, she is released from her prison, turns into a sixteen year old and meets Taito at the playground from their youth. Gekkou arrives and stabs Himea through the chest, ending their long awaited reunion.
Taito è un liceale comune, che ha dovuto abbandonare il karate a causa di un infortunio e che ultimamente sogna una giovane vampira di nome Himea che dice di avergli donato il suo veleno. Ma quando sopravvive ad un incidente mortale si ricorda che quello non era un sogno.
平凡な高校生 鉄大兎は、謎の女の子に告白される夢を繰り返し見ていた。
彼の通う宮阪高校の生徒会長、紅月光は、そんな大兎になぜか興味を持つ。
そんなある日。同じ高校の女子、安藤美雷を助けようとして、大兎はトラックにはねられてしまう。
彼が死んだその時。9年前に止まっていた物語が、時を超えて再び動き始めた。
Taito es un estudiante de secundaria común que ha tenido que abandonar el karate debido a una lesión y que últimamente sueña con un joven vampiro llamado Himea que dice que le ha dado su veneno. Pero cuando sobrevive a un accidente fatal, recuerda que eso no fue un sueño.
