Four girls decide to stay over at school: the energetic Yuki Takeya, the shovel-loving Kurumi, the c...
Four girls decide to stay over at school: the energetic Yuki Takeya, the shovel-loving Kurumi, the center of the group Yūri who brings everyone together, and the spacey school adviser Megu. However, through mysterious circumstances, the girls find themselves the final survivors in a zombie attack, and continue to live at the school.
