In a post-apocalyptic world of vampires vs. humans, Yuichiro brings vengeance upon his vampire overlords!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.

Asuramaru and the other black Cursed Gear demons' betrayal of their hosts strikes a heavy blow in the war against the vampires, Shikama Doji, and the Hyakuya Sect. Shikama Doji has ordered Asuramaru to capture Mikaela's soul before he has a chance to possess anyone. While Shinoa continues to fight to keep Shikama Doji locked away, Yuichiro and his friends are in a race against time to save Mika in the one way humans know how to handle black demons: by binding his soul to a new Cursed Gear weapon!