Holy fire consumed Earth, leaving rifts that flood our world with monsters. Humanity's sole refuge—the underground Kingdom of Cindrus—shelters the remnants of a shattered civilization. Yet darkness hasn't extinguished all light. Erec, graced by the goddess like every human, carries the burden of fallen nobility. Driven to restore his family's legacy, he pursues admission to the elite academy where Knights are forged for the next age. Tormented by a power that triggers devastating Rage and guided by an ancient AI, Erec embarks on a quest to reclaim the world for mankind's survivors.