七位高中生,因文化节而留宿在废弃的教室中,开始讲鬼故事游戏。当班长提议使用咒符玩“幸福的幸子”时,他们无法拒绝。完成仪式后, sudden tremors rock the classroom and a deafening sound echoes, causing everyone to fall through the ground.
Awakening in an ancient elementary school dormitory, they find themselves trapped within its terrifying walls. The school's abandoned building is sealed shut, shrouded in fear and mystery. As Yumi discovers her missing friend Subaru, both embark on a perilous journey to escape this dreadful school. However, the real terror lies ahead as victims start appearing one by one. In the haunting halls of "Heavenly God Elementary," who or what is controlling these events...?