God protect our land, long live our nation The Republic of Korea and the nations of the world have faced the worst crisis since their founding. On September 6, 2026, demons descended from the sky and began massacring humans, prompting governments to declare DEFCON 1. Though humanity is armed with overwhelming technological prowess and combat experience, it remains uncertain whether the sacred flame of Prometheus will survive against the demons' crushing numbers and physical endurance. God, please protect your children.