The final boss climbs the tower

Aaron Hunter is the final boss of the Dark Tower. He was not born this way, nor would he have ever wished for it, to be stripped of his freedom and enslaved by the tower, bound to its highest floor as its ruler, forced to cut down every climber who dared challenge the 100th floor. After obtaining a rare red crystal known as the Return Stone from a fallen climber, he managed to break free from the tower's grasp. The cost, however, was everything, all his power gone, reduced back to level one. "I need to get stronger." Now Aaron walks a new path: to surpass the peak he once stood at and take revenge on those behind the system that stole his freedom.