With determination gleaming in his eyes, Naruto opened them wide, revealing the unique power of his dojutsu—a swirling vortex of energy and perception. Sasuke, invigorated by the rush of adrenaline, surged forward with unprecedented speed, yet Naruto, ever the swift ninja, was still a step ahead. The copy of Naruto, however, cunningly decided to temper his speed, bringing it down to match that of a low-mid chunin, giving Sasuke a fleeting sense of opportunity.
Panting from exertion, Sasuke seized the moment to launch another attack, feigning a step and executing a quick sweep aimed at Naruto's legs. As Naruto tumbled onto his back, Sasuke swiftly reached for a kunai, launching it with lethal accuracy. With agility born of instinct, Naruto rolled away just in time, flipping back to his feet in one fluid motion. He charged toward Sasuke, delivering a powerful right hook, but Sasuke ducked and evaded with uncanny precision.
In that brief moment of respite, Sasuke noticed a subtle but crucial change; Naruto's movements were noticeably slower. Seizing this insight, he attempted another leg sweep. But Naruto, anticipating the move, leaped into the air, striking out with a kick aimed at Sasuke's side. Sasuke managed to block the hit, but the two boys swiftly sprung back, each panting heavily yet with unwavering resolve etched across their faces.
With a shared nod of determination, they rocketed toward each other, the world around them blurring as they exchanged a flurry of blows. Naruto unleashed a rapid series of kicks targeted at Sasuke's torso and head, while Sasuke's Sharingan glimmered, granting him heightened reflexes that allowed him to evade most of the strikes. As Naruto lunged for a swift kick toward Sasuke's temple, Sasuke ducked just in time, leaving Naruto vulnerable to a counter. Sasuke lunged forward, aiming a jabbing strike at Naruto's throat, yet Naruto reacted swiftly, managing to deflect the blow just enough to stagger Sasuke back.
The intensity of their battle escalated as both ninjas clashed and separated with blinding speed, their movements a dizzying blur. Naruto employed his mastery of Jeet Kune Do, skillfully adapting to and countering Sasuke's Uchiha-style techniques. Meanwhile, Sasuke's Sharingan continued to provide an edge, allowing him to predict Naruto's next moves—though it was evident Naruto was holding back, just biding his time.
Drawing from the well of his untapped potential, Naruto resolved to conclude their duel. With the backdrop of the arena reverberating with tension, the two future genins faced off one last time. In a flash, Naruto unleashed his true speed during their final clash, launching a precise jab that caught Sasuke squarely on the chin. Both fighters recoiled, but while Naruto regained his footing, Sasuke crumpled to the ground, his senses dulled by the impact of Naruto's final strike.
The spectators watched in stunned silence, wide-eyed and mouths agape, as Iruka stepped forward, breaking the stillness with his authoritative voice. "The winner, Naruto Uzumaki!" The proclamation hung in the air, a moment of disbelief amidst the crowd. Sensing the curiosity brewing around him, Naruto prudently decided to make his exit, vanishing before any questions could surface.
Hovering above the scene, the original Naruto smiled knowingly, contemplating the fate of his counterpart. "Let's leave this Naruto be for now," he mused, pondering the adventures that awaited him beyond this realm. With a rift shimmering into existence before him, Naruto stepped through, disappearing into the unknown, ready for a new chapter in his journey.