After trumpets of the apocalypse proclaim the fall of humanity, vampires arise from the shadows to rule the earth. Yuichiro wants just one thing - to get revenge by killing each and every vampire. A vampire attack reunites Yuichiro with his childhood friend Mika - though they w face each other from opposing sides of the battlefield. Mika begs him to forget about the conflict between humans and vampires and escape together, but he is torn about abandoning his new friends. Then, everything changes when Yuichiro suddenly transforms into a monstrous being with one seraphic wing!
Takaya Kagami is a prolific light novelist whose works include the action and fantasy series The Legend of the Legendary Heroes, which has been adapted into manga, anime and a video game. His previous series, A Dark Rabbit Has Seven Lives, also spawned a manga and anime series. Yamato Yamamoto, born 1983, is an artist and illustrator whose works include the Kure-nai manga and the light novels Kure-nai, 9S -Nine S- and Denpa Teki na Kanojo. Both Denpa Teki na Kanojo and Kure-nai have been adapted into anime. Daisuke Furuya previously assisted Yamato Yamamoto with storyboards for Kure-nai.