After losing his parents, Kanata Kanbayashi and his younger sister are taken into an institution for gifted orphans. Determined to meet the expectations of the academy's headmaster, whom he admires like a father, Kanata works tirelessly. At just 18 years old, he successfully develops a device capable of reaching unknown dimensions. However, instead of being rewarded, he suffers a cruel betrayal. Driven to despair, Kanata jumps into a teleportation gate and finds himself in the Land of the Apocalypse, a terrifying world overrun by monsters. There, students from various dimensions gather at the Apocalypse Resonance Academy. After narrowly escaping death, Kanata reaches the academy aboard a school bus, only to discover that the very headmaster who betrayed him is there! Can Kanata become the strongest person in this new world and finally take revenge against those who betrayed him? A thrilling story of revenge, battles, and supernatural powers begins in an academy beyond dimensions!