In the realm of Tower of God, a mysterious structure beckons selected individuals called Regulars, offering to grant their deepest desires. Whether seeking riches, renown, power, or something greater, all such ambitions await at the summit of this enigmatic tower. Bam Twenty-Fifth spent his life trapped in a shadowy cave, knowing nothing beyond a ragged cloth and a faint, distant glow. His world changed when Rachel, a girl emerging from that light, entered his life. As their bond deepened, Rachel revealed the existence of the world outside, yet the news that she must leave to climb the Tower shattered Bam's reality. Driven to follow her, he resolved to pursue her at any cost. Upon fixing his gaze on the Tower, a miraculous event occurred. Thus begins Bam's journey: the story of a boy who was never summoned by the Tower but forced its gates open himself. Such figures are known as Irregulars, beings whose presence has historically disrupted the very foundation of the Tower.