To solve the problem of overpopulation and monetize on the idea, war is declared among girls' schools. Schools form their own armies of girls to send to fight girls from other schools. Drones equipped with cameras film the battles and executions, which are then live-streamed. Female armies must adhere to conventions designed to make warfare more spectacular and interesting to the public, with an emphasis on atrocity, gore, and fan service. The girls are equipped with old model rifles and little ammunition to encourage bayonet assaults. Their uniform is skimpy to better show the gash of the bayonets on the belly and the intestines that spill out.