"Lord Senju, the preliminary trials for the Interdimensional Transport Protocol—the project you commissioned twenty years ago—are finally complete."
In a sprawling plaza humming with advanced technology, Orochimaru guided Uchiha Senju through a tour of the device. It was a monumental construction, a cross-dimensional teleportation array built upon two decades of tireless labor and infinite resources.
To a man of science like Orochimaru, the Emperor's vision was nothing short of divine genius. Yet, to the masses, this massive structure was a monument to Uchiha Senju's hubris—a symbol of a warmongering tyrant who, having conquered one world, now sought to set others ablaze.
He had unified the entire Ninja World, yet that was not enough. Just how much would it take to sate his gluttonous ambition?
"The jutsu is stable," Orochimaru reported, his snake-like eyes gleaming. "Whether it is a Summoning Beast or a Shadow Clone, they can now successfully traverse the void to reach the other side. Currently, the channel can support the simultaneous descent of three individuals. However, due to lingering instability in the spatial tunnel, it is safest to only send operatives whose power levels are below the 'Super Kage' threshold..."
Senju nodded slowly.
Twenty years. It had been twenty long years. Finally, the array was operational.
The threat of the Otsutsuki Clan had always hung over his head like the sword of Damocles. Even after developing this world's potential to its absolute zenith, he lacked the confidence to face their inevitable descent. But now, with the door to parallel worlds flung open, his future was suddenly illuminated with infinite possibilities.
Uchiha Senju was a man with a secret: he was a transmigrator from the 21st century, a hardcore fan of the original Naruto series.
He had arrived at the tail end of the First Great Ninja War. Born of a forbidden union between a Senju mother and an Uchiha father, his very existence was a taboo. After his parents were sacrificed to the cruelty of the era, he utilized the chaos to execute a 'Golden Cicada' maneuver—faking his death to survive in the shadows.
Because of his dual bloodline, he possessed the Sharingan, the Sage Body, and mastery over all elemental jutsu. When the Second Great Ninja War erupted, he emerged as a one-man army, slaughtering the corrupt nobility of the ninja world. He abolished the Village System and the Feudal Lords, unifying the globe under the first absolute Empire.
To the common people, the name of the ruler mattered little. They cared only for the price of rice and whether they could afford oil for their lamps. But to the ninjas and the deposed Daimyos, Uchiha Senju was the man who had stolen their cake. Countless traditionalists had tried to sabotage the new Empire, desperate to restore the old Village System.
In a fit of rage, Uchiha Senju bathed the world in blood. He culled the ninja population by a third. Since that day, no one dared to rebel, and the title of 'Tyrant' became his crown.
The peace that countless heroes had dreamed of had finally arrived—delivered not by understanding, but by absolute, terrifying force.
"Three individuals below Super Kage level..." Senju mused.
In this era, there were no countries or hidden villages. All ninja belonged to the Empire, and Uchiha Senju was its first Emperor. He held absolute authority to commandeer anyone.
"Who to send as the vanguard..."
The Empire was teeming with talent, but most were occupied in critical infrastructure roles. Minato Namikaze, for instance, was the Director of the National Transport Bureau; buried under a mountain of daily logistics, he couldn't be spared for an extradimensional expedition. The Senju clan was heavily involved in the General Bureau of Infrastructure, and the Hyuga clan was staffing hospitals nationwide.
So much talent, yet so difficult to choose.
Suddenly, three names came to mind—individuals with immense destiny who had been notably idle recently.
"Summon Obito Uchiha, Kakashi Hatake, and Nagato Uzumaki!"
"At once!"
Obito and Nagato needed no introduction; they were the 'Children of Prophecy' of their generation.
Obito possessed the double Kamui Mangekyō Sharingan. This ability would guarantee the trio's safety during the spatial jump, and his personal dimension could serve as the ultimate storage facility—essential for travel, murder, and looting.
Nagato still held the Rinnegan implanted by Madara. Though currently inactive, keeping him just below the Super Kage threshold, the eyes simply needed a catalyst to awaken, allowing him to break through to the next level instantly upon arrival.
And Kakashi... A Jonin at six, an Elite Jonin at eight, and a sword master surpassing Kage level by twelve. He possessed rich combat experience and absolute rationality. In the original timeline, he was trusted enough to guard the Nine-Tails Jinchūriki and eventually became Hokage.
They were the perfect candidates.
As for Shisui Uchiha? His Kotoamatsukami would be ideal for conquering a new world, but he was currently in the Earth Province busting a pyramid scheme organization and couldn't make it back in time. Besides, the cooldown on his eyes was years long—too inefficient for a vanguard force.
"Orochimaru," Senju asked, "If we packed a massive army of ninja inside Obito's Kamui dimension, could we smuggle them into the parallel world?"
Orochimaru shook his head. "Without a stabilized anchor on the other side, any existence below Shadow Level cannot withstand the shear of spatial forces. Even items stored in spatial tools like Holding Bags or Kamui—living or dead—would be shredded by the turbulence."
"Understood."
Senju asked a few more questions about research projects and drew a metaphorical 'big delicious cake' of promises for Orochimaru to keep him motivated. Moments later, the three summoned shinobi arrived.
"Lord Senju!"
The three bowed respectfully upon seeing the Emperor. Senju nodded.
"The Interdimensional Transport Project is operational. The Empire requires you to serve as the first vanguard force."
"We are facing an unknown world. Our intelligence is effectively zero."
"The mission risk is Super S-Class. From the moment you step into this array, you face the risk of death."
Senju swept his gaze over them. "The Empire is humane. This mission is voluntary. If you wish to withdraw, speak now."
Silence.
"Since you have all tacitly accepted, I expect you to complete this mission with excellence. The future rise or fall of our Empire hinges on this."
"Obito. While crossing the void, keep a constant watch on Nagato and Kakashi. If any life-threatening anomaly occurs, transport them to the Kamui dimension immediately. Prioritize survival."
"Understood."
"Kakashi. You are the provisional Captain of this three-man cell. Report any unmanageable situations immediately. If you lose contact with the Empire, all tactical decisions are yours to make."
"Yes, sir!"
"Nagato. This is the latest genetic serum developed by the Tsunade Medical Institute. It contains my Six Paths Chakra. It will help you instantly activate the Rinnegan and significantly reduce its chakra consumption."
"Thank you, Lord Senju."
"Finally, take these." Senju presented three sleek, futuristic devices. "These are Nano-Bracelets, a joint development by Aburame Biotech, Akasuna Mechanical, and Orochi Tech. You will use them for triangulation, communication, and reporting back to me. They contain a database of the Empire's forbidden jutsu, mechanical blueprints, and biological medical knowledge—including the schematics for building a return portal."
The three strapped on the bracelets. Immediately, a sharp sting pierced their wrists as millions of nanobugs bit into their flesh, connecting with their nervous systems. Through a specialized genjutsu interface, a flood of knowledge was instantaneously uploaded directly into their brains.
Their eyes lit up with excitement. Forget the mission—the knowledge contained within these devices alone was worth more than any S-rank bounty!
"Alright. Aside from reconnaissance and intelligence gathering, your individual objectives have been uploaded to your bracelets. Depart!"