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 weaponry that is humanity€s only hope for combating the vampire scourge. But times are dangerous, and instead of getting to celebrate his newfound power, Yuichiro and his friends are given their first mission€"head to Shinjuku and investigate vampire activity. Unbeknownst to him, his best-friend-turned-vampire, Mika, is headed for the same place€¦