The vast, empty expanse of the Nexus Coliseum stretches out in all directions, an unearthly silence hanging over the arena like a thick fog. It stands isolated in an unknown dimension, a place beyond time and space, where the laws of physics bend and twist in unpredictable ways. The structure itself is monumental—its construction a mystery, its origins lost to the annals of time. Ancient stone pillars rise high above, interwoven with glowing threads of energy. The floor is a patchwork of smooth marble and jagged rocks, shifting as if the arena itself is alive. But no one has ever seen it truly awake. Not until now.
The Coliseum has waited for centuries—no, perhaps millennia—for the moment when it would call forth the greatest warriors from across the multiverse. The system within it has been dormant, its core silent, waiting to find its first champions. But today, that silence is shattered. A low, mechanical hum begins to stir, vibrating through the very core of the Coliseum. It's subtle at first, like the hum of an ancient machine waking from its long slumber, but soon it grows louder, filling every corner of the arena.
The ground beneath the Coliseum begins to tremble, and the sky above ripples like liquid glass. The very fabric of reality seems to bend, the space between worlds thinning as the Coliseum's system kicks into gear. With a sudden jolt, the arena awakens fully, its holographic screens flickering to life with a burst of energy. A voice—cold and mechanical—booms across the arena.
"Search for warriors... Commence."
The voice reverberates through the space, and for a moment, everything pauses. The arena is alive now, more than just a mere battleground. It is a powerful force, seeking out its champions. Through its vast network of unknown technology, the Coliseum reaches out across the dimensions, its tendrils stretching beyond the known universe. It scans countless worlds, probing the timelines of various dimensions, sifting through countless warriors, from gods to mortals, from legends to forgotten heroes.
The Coliseum's system scans through time and space, each name and face flashing on the holographic screen in rapid succession. It searches for the strongest, the most capable, the most worthy fighters. It does not care for the reasons behind their battles, only for their power, their drive, their resolve. The system finally narrows down its search, pulling two distinct names from different realms.
On the first holographic screen, the image of Goku, the Saiyan warrior from the Dragon Ball universe, materializes. His unmistakable spiky hair glows with the golden hue of Super Saiyan energy, his muscles rippling with the raw power of his heritage. Goku, the champion of Earth, the fighter who has saved the universe countless times, stands proudly in the projection.
Beside him, the image of Naruto Uzumaki appears—his blonde hair tousled, his blue eyes burning with determination. The image of Naruto from the Naruto Shippuden timeline is one of a warrior who fought tirelessly to protect his friends, his village, and his legacy. The energy of the Nine-Tails, the spirit of a never-give-up attitude, radiates from him even in the digital realm.
Both names flash across the screen. Goku. Naruto.
"Selection complete." The voice echoes once more.
Without warning, the Coliseum's system activates. A bright, blinding light fills the arena, and the very air begins to hum with an otherworldly energy. The warriors' worlds begin to distort and warp, as if the boundaries of space and time are being undone.
Goku
On Earth, Goku is enjoying a peaceful moment with his family. The sun is setting, casting a warm orange hue across the sky. Goten, eager to show off his progress, is excitedly demonstrating a new training move he's been working on, trying to land a clean Kamehameha wave. Goku watches, laughing at the boy's enthusiasm, while Chi-Chi prepares lunch in the kitchen, occasionally shouting at them to be careful with their sparring. The peaceful scene is a sharp contrast to the chaos and battles Goku has faced in the past. Life has slowed down since his last major fight, and Goku feels content.
As Goten struggles to land the perfect shot, Goku's senses suddenly tingle. His stomach tightens, and an unfamiliar, overwhelming pull surges deep within his core. It's a strange energy, one he's never felt before, but it calls to him with an almost magnetic force. His heart starts to race. A flicker of light flashes in his vision, and before he can even react, the ground beneath him cracks and trembles.
"W-What's going on?" Goku mutters under his breath, bracing himself. A surge of energy engulfs him, his body ripped from the peaceful moment in an instant. The air around him crackles with raw power, and in the blink of an eye, the landscape of his home vanishes. His vision blurs, and he feels himself being yanked into a swirling vortex of energy. Goku's instincts flare, his training kicking in as his body twists and turns through the unseen dimensions.
As the sensation overwhelms him, Goku's excitement begins to bubble up. He grins, unable to suppress the thrill rising in him.
"Looks like I've got another fight coming!" he exclaims, his voice brimming with excitement. His aura flares to life, crackling with golden energy as he prepares for whatever challenge awaits him. His mind races with possibilities—who or what could be pulling him away from Earth? But before he can fully process it, the world around him shifts. One moment, he's on Earth with his family, and the next, he's standing in an unfamiliar arena—a place completely outside of his experience.
Naruto
In the Hidden Leaf Village, Naruto is on a mission with Sasuke and Sakura. The trio is traveling through the dense forests surrounding the village, on their way to a neighboring town to investigate a series of mysterious incidents. The weather is overcast, with a gusty wind whipping through the trees, carrying with it a sense of unease. Naruto, always alert, feels a strange disturbance in the air—an unfamiliar pressure building up in the atmosphere. He stops, his eyes narrowing as his senses flare to life. A cold shiver runs down his spine as if something, or someone, is pulling at the very core of his being.
He instinctively reaches for the chakra of the Nine-Tails, the immense power inside him beginning to stir. His breath quickens as the pressure grows, the sensation of something unnatural weighing on the air. He looks over at Sasuke and Sakura, who both sense it too. But before they can speak, the sky darkens, and the very ground beneath them starts to quake.
"Something's wrong," Naruto says under his breath, stepping back into a defensive stance.
Suddenly, a surge of energy envelops him, brighter and more intense than anything he's felt before. The surroundings blur into a whirlwind of light and sound, and before he can react, the world around him breaks apart. The familiar sounds of the forest, the wind rustling through the trees, vanish. The sounds of his teammates and the Hidden Leaf Village fade into silence.
Naruto's heart races as the world spins, his chakra flaring out of control as the pressure intensifies. He clenches his fists, trying to stabilize himself, but it's futile. In a blinding flash, the environment shifts completely. The dense trees and open sky are replaced by an overwhelming glow, and within seconds, Naruto finds himself standing in a vast, alien arena. His eyes scan the surroundings—an immense coliseum that feels both ancient and futuristic, a place he's never seen before, yet strangely familiar.
"What the heck? Where am I?" Naruto mutters, his voice echoing in the new space. He instinctively taps into his chakra, the familiar warmth of the Nine-Tails settling within him. The fox's power flows through him as he takes in the arena, trying to make sense of the situation. This place... this isn't just any random space. It feels like destiny has led him here, like the arena itself has been waiting for something.
His grip tightens on his kunai as his eyes scan the horizon. His instincts tell him that this is no ordinary mission—it's something much larger. Something much more dangerous.
"Guess I better get ready," he says, taking a deep breath and readying himself. Whatever the arena's purpose is, Naruto knows he's in for a fight.
As both Goku and Naruto stand in the arena, confused and uncertain, the screen above them flickers to life again. The voices of the system echo in unison across the vast space, a cold and emotionless command: "Fight!"