Kyuuketsuki ni Natta Kimi wa Eien no Ai wo Hajimeru

In his first year of high school, Harada Utaya undergoes a transformation that strips him of his humanity. Though he gains extraordinary physical abilities, he can no longer play basketball. He transfers to a new school, where he meets Harushina Ayane, a senior with a striking, Virgin Mary-like appearance. She invites him to participate in a play, asking him to take on the role of her "lover" Dracula.