Gerson's overwhelming power and abilities allowed him to effortlessly counter Susie's chaotic onslaught. As the hidden room echoed with an eerie silence, the atmosphere thickened as Susie stepped cautiously towards the upgraded weapon in the center. Suddenly, the formidable figure of Gerson Boom materialized before her. "You think you can just take it? Not without a challenge," Gerson said, his voice deep and commanding. The air shimmered with the afterimages of his speed, a testament to the power he wielded. Susie gripped Jevil's knife tightly, the giant scythe glinting maliciously. "I don’t have time for games, old man! The scythe is mine!" With a flick of her wrist, she swung the knife towards Gerson, sending chaos energy surging through the air. Gerson, seemingly unfazed, raised his giant hammer of justice. "Justice never rests, young one!" As Susie's scythe neared him, he moved, creating an afterimage that confused her momentarily. The afterimage stood still, while Gerson's real self dodged to the left, making it seem as if he had vanished. Susie watched as the afterimage took the brunt of her attack, shattering like glass. "What?!" she shouted, bewildered. Before she could recalibrate, Gerson was upon her, hammer raised high. "You underestimate the speed of justice!" he declared, bringing his hammer down with enough force to crack the ground. There was no time for Susie to evade; she barely raised her scythe to block, but the impact sent her staggering back. Regaining composure, Susie attempted her strong suit – the rune buster. She shot a swirling arcane energy towards Gerson, who effortlessly created a barrier with a wave of his hand, freezing the attack in place. "Your tricks won't work on me," he declared, his magic guard absorbing the energy with a popping sound. Gerson advanced again, his hammer’s presence intimidating and heavy. "You forgot about the strength of stillness!" He cast his immobilizing spell, and with a flick of his wrist, Susie felt an unseen force binding her in place. "No! Let me go!" Susie cried out, struggling against the magical grip, but even with her considerable power, she found herself unable to escape. Gerson stood over her, the smirk on his face replaced by a steely gaze. "You must learn that power alone isn't everything. Justice stands eternal, and it will not yield." With a decisive swing, Gerson brought down his hammer, and in a brilliant flash of light, the fight was over. The impact knocked Susie to the ground, and as she lay looking up at the ceiling, she realized Gerson had not only won but had exemplified the meaning of being a true champion of justice. "You fought admirably, but next time, remember: earn it," Gerson said, the afterimages of his speed surrounding him as he walked away, leaving Susie to contemplate her next move.