killing forty-two assassins in twenty-four hours!!-24時間で42人の暗殺者を殺害!! -

- Japan suffers from overpopulation and politicians decide to exterminate part of the people and thus reduce spending on the people, thus creating a holiday known as the Day of Killing . Mainichi Satsujin a 22-year-old unemployed vagabond, forgets the holiday and leaves home exactly on that day and ends up finding his girlfriend who was going to visit him being killed. He decides to take revenge and kill all forty-two assassins who command the order of killers only he has to do it before the holiday ends!!