A new type of virus makes 'GIMP', the dead that eats human flesh which roams the land. In a school surrounded by fences against Gimps, seven girls; Nonoka, Moe, Emiri, Nagi, Akari, Karin, and Miyu lead school lives. They are only taught how to fight against Gimps, not knowing the world outside of the school. A zombie bites one of the girls in class one day which leads suspicions to grow between the seven girls