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-make new friends with his fellow aspiring monster slayers Now that Yuichiro has earned his place in the Japanese Imperial Demon Army, he prepares to undergo...