Fame. Glory. Power. Anything in your wildest dreams is possible when you reach the top of the Tower of God. Those lucky enough to be chosen by the tower ascend each floor in hopes of fulfilling their dreams, but to succeed, they must complete dangerous and deadly tests along the way. But there are others who can enter the structure on their own free will; these "irregulars" are feared by many and are said to leave chaos and change in their wake. Twenty-Fifth Baam is one such irregular who begins to climb the Tower of God in hopes of reuniting with his childhood friend Rachel, but as he soon discovers, this perilous path will put him in the crosshairs of fierce competitors, untrustworthy rivals and terrifying monsters, and he might not make it out alive...