Kalrus always thought his gaming skills were just for fun - until the day he woke up in a world where those very skills determined his survival. Thrust into a realm teeming with goblins, Beastkin, and other creatures that seem ripped from the pages of his favorite RPGs, he quickly realizes that every battle fought and every skill leveled up carries real-life consequences.When Kalrus finds himself among a group of strangers in a vast, eerie tower, he learns that they are not just fighting for their lives, but for the fate of Earth itself. The tower, known as the Tower of Champions, serves as a training ground for World Defenders and World Champions - warriors selected by an enigmatic System to protect their worlds from impending threats.As Kalrus navigates the treacherous halls and endless trials of the Tower, he grapples with a choice that could change to become the Ruler of this world or continue as a champion fighting for Earth. With every step deeper into the Tower, the stakes grow higher, and the lines between ally and enemy blur.Facing foes that were once mere nuisances but now signify a looming, cataclysmic danger, Kalrus must trust in his instincts, his rapidly evolving skills, and the strange System that chose him. Will he rise to become the hero Earth needs, or will the weight of the world crush him before he can save it?