After a catastrophic epidemic kills every adult on earth, vampires arise from the shadows to enslave the remaining human population. Yuichiro escapes from captivity and joins the Japanese Imperial Demon Army. But before he's allowed to fight vampires, he has to complete his first, terrifying mission[...]

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. Yuichiro has undergone the strange and dangerous ritual to acquire Cursed Gear - demon-possessed weapon[...]