Within a tower that beckons selected individuals known as 'Regulars' with the allure of fulfilling their deepest desires, lies the story of Twenty-Fifth Bam. Raised in solitude within a dim cavern, with only a tattered cloth and an unattainable glimmer of light to accompany him, Bam's world transforms when a girl named Rachel emerges through the light. Bonding closely with Rachel, he gains insights into the world beyond. However, when Rachel decides to ascend the Tower, leaving Bam behind, his reality fractures. Determined to pursue her at any cost, Bam fixates on the tower, and a remarkable event unfolds. Thus commences the tale of Bam, a youth unchosen by the Tower but who unlocks its doors single-handedly. Termed 'Irregulars,' his kind disrupts the Tower's very essence with each entry, challenging its core with every step taken.