Fifteen hundred years after a catastrophic supernatural disaster nearly wiped out humanity, modern history teacher Ethan Caldwell wakes up in a ruined future. Now a Spirit Summoner in humanity’s last survival zone, he unlocks a mysterious Binding System. While other summoners fail to call true spirits due to lost history, Ethan uses his knowledge to awaken the legendary Prince Nezhar, stunning everyone. But a hidden traitor, Lucas Vane, reveals himself and opens the deadly Fallen Spirit Arena, summoning monsters like Dracula and Sadako to annihilate mankind. With humanity on the brink, Ethan activates the system's Forced Binding Card and changes the fate of the world.
