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English
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Published:
2026-02-02
Completed:
2026-02-02
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28/28
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The birth of the Jikūton

Summary:

When parents do something over and over again, there offspring have a high chance of mimicking their actions even if they never saw their parents doing it before. Genetics can be kind of funny sometimes and that goes double for Naruto Uzumaki the jailer of the nine tailed fox and the first user of the Jikūton.

Chapter Text

The sun had barely begun to crest over the jagged stone faces of the Hokage Monument, casting long, amber shadows across the village of Konoha. Inside a small, impeccably clean apartment, the air was still. Gone were the piles of instant ramen cups and the discarded orange jumpsuits of a lonely boy seeking attention. In their place were scrolls on anatomy, jars of medicinal salves, and a heavy iron seal used for weighted training.

Naruto Uzumaki stood before his washroom mirror, methodically wrapping fresh bandages around his torso. At fourteen, he was a physical anomaly. He stood 5’10”, his frame packed with dense, functional muscle that rippled under a complexion bronzed by thousands of hours in the forest. His golden hair, no longer a wild thicket, fell in deliberate, sharp bangs that framed an oceanic gaze far too calm for a boy of his reputation.

"You’re late, brat," a deep, melodic rumble echoed in the back of his mind. It wasn't the roar of a beast, but the smooth, dangerous purr of the Yin-Kurama.

Naruto glanced at the clock. 07:54 AM. The graduation exam began at 08:00 AM sharp. Usually, he didn't care for the academy’s rigid schedules, but today was different. Today was the day he would finally step out of the shadows of "the failure" and begin the long process of holding the village accountable for its lies.

"I know," Naruto whispered, pulling on his black long coat. The heavy fabric settled over his shoulders, the high collar hiding the slight smirk on his face.

He stepped out onto his balcony. The academy was miles away on the other side of the bustling village. Even a Jōnin using the Shunshin (Body Flicker) would struggle to make it in six minutes through the morning crowds. Naruto closed his eyes, centering his breath.

Deep within his gut, a unique cocktail of energies began to churn. It was the weight of Water, the void of Wind, the jagged spark of Lightning, and the ethereal, reality-bending "form" of Yin. Together, they didn't just create chakra; they created a localized distortion in the fabric of existence.

Naruto didn't visualize running. He didn't think about his legs moving. Instead, he reached out with his mind, using the Yin-Kyuubi’s heightened perception to "anchor" himself to the rooftop of the Academy. He imagined the distance between his balcony and that roof as a piece of paper. In his mind, he simply folded it.
"Jikūton: Warp Step," he breathed.

There was no explosion, no puff of smoke, and no blur of movement. The air around him simply rippled like the surface of a disturbed lake. To any observer, Naruto Uzumaki didn't move—he just ceased to be in one place and instantaneously existed in another.

The transition was violent. A localized vacuum "pop" echoed on the Academy roof as the atmosphere rushed to fill the space he had just vacated. Naruto stumbled slightly, his inner ear screaming as his brain tried to process the fact that he had bypassed three miles of physical reality in a nanosecond. He felt the familiar, metallic tang of his Space-Time chakra in the back of his throat—the "Water" aspect making the transition feel like he had just been dunked in a freezing ocean.

"Getting better," Kurama mused, a hint of genuine interest in his voice. "Only a slight tremor in the knees this time."

Naruto ignored the fox, straightened his coat, and checked the clock on the Academy tower. 07:56 AM. He had four minutes to spare.

The Academy hallway was quiet, save for the muffled voices of students behind heavy wooden doors. Naruto walked with a measured, silent gait that betrayed his massive size. When he reached Room 301, he didn't knock. He simply pushed the door open.

The room fell into a suffocating silence.
Iruka Umino, who had been organizing papers at the front desk, froze. Mizuki, leaning against the far wall with a predatory smirk, blinked in confusion. The students—the "elite" Uchiha, the loud-mouthed Inuzuka, and the fan-girls—all stared.

They were looking at a stranger. Naruto was taller than almost everyone in the room, his presence so heavy it felt as if the air pressure had dropped. The bandages on his hands and the dark, imposing coat made him look less like a student and more like a seasoned mercenary.

"You're late, Uzumaki," Mizuki snapped, though his voice lacked its usual bite, replaced by a flicker of uncertainty.

"The clock says otherwise, Mizuki-sensei," Naruto replied. His voice was a calm, resonant baritone that seemed to vibrate in the chests of those nearby. He walked to his usual seat in the back, ignoring the hungry, lingering gazes of several girls who were struggling to reconcile this Greek god with the "shrimpy prankster" they remembered.

Iruka cleared his throat, trying to regain control of the room. "Right. Well. Since everyone is finally here, we will begin the final graduation exam. The requirements are simple: the Henge (Transformation), the Kawarimi (Substitution), and finally, the Bunshin (Clone) jutsu."

Naruto leaned back, his eyes half-closed. The first two tests were a joke. When his turn came, he performed a Henge so detailed it wasn't just a visual illusion; the air around his transformed state carried the actual scent of the Sandaime Hokage. His Kawarimi was so fast it left a lingering ripple in the air, a byproduct of his subconscious Jikūton influence.
But then came the Clones.

"Naruto Uzumaki," Iruka called out, his voice tinged with a mix of hope and dread. He knew Naruto’s history. The boy could never master the Clone Jutsu. His chakra was too "volatile," too "clumsy."

Naruto walked to the center of the floor. He could feel Mizuki’s smirk returning. The silver-haired instructor was practically vibrating with the anticipation of Naruto’s failure.

"Is there a problem, Naruto?" Mizuki asked, his voice dripping with mock concern. "You know you can't graduate if you can't produce a simple clone. Or is your chakra still too... 'damaged' to handle it?"

Naruto didn't look at him. He looked at his own hands. For years, he had tried to suppress the "weight" of his chakra to fit the Academy's standards. He had tried to make an illusion out of a force meant to move mountains.

"I won't be performing the Academy Clone," Naruto said clearly.

A gasp went through the room. Sasuke Uchiha narrowed his eyes, his ego piqued by the blonde’s sudden shift in attitude.

"The rules state—" Iruka began.

"The rules state I must produce a functional clone," Naruto interrupted, his oceanic eyes locking onto Iruka’s. "It doesn't say it has to be a useless illusion."

Naruto brought his hands together. He didn't use the standard ram sign. Instead, he formed a cross—the seal for the Kage Bunshin, but with a twist. He channeled the Yin half of the Kyuubi’s spirit, blending it with the fluid Water and the void-like Wind of his own nature. He didn't just want to copy his body; he wanted to fold space into a mirror.

"Jikūton: Kage Bunshin no Jutsu!"
The air in the room suddenly turned cold. A low, thrumming hum, like a swarm of bees, filled the ears of everyone present. The floorboards beneath Naruto’s feet groaned under a sudden increase in gravitational pressure.
CRACK.

The air to Naruto’s right fractured like a sheet of dark glass. From the jagged ripple in space, a hand reached out—a hand wrapped in bandages. Slowly, a second Naruto stepped out of the void.
This wasn't a pale, flickering image. This clone had a heartbeat. It had a scent. It had a presence so physical that the students in the front row could feel the heat radiating off its skin.

"What... what is this?" Iruka stammered, standing up so quickly his chair clattered to the floor. "This isn't a Bunshin. It’s... it’s solid. But the chakra signature is... it’s bending the light around it."

Mizuki’s face had gone pale. He looked at the clone, then at Naruto, his mind racing to understand how the "dead last" had manifested a technique that felt more like an S-Rank Kinjutsu than a graduation requirement.

Naruto’s clone didn't just stand there. It turned its head, looking at Mizuki with the same piercing, calm gaze as the original.

"Is this sufficient, sensei?" the clone asked. Its voice was identical to Naruto’s, but carried a strange, metallic echo, as if it were speaking from the bottom of a deep well.

Iruka was speechless. He looked at the sheet in front of him, then back at the boy who had been the village's pariah for over a decade. He saw the strength, the discipline, and most of all, the terrifying power that Naruto had been hiding.

"I... Yes," Iruka whispered, his voice trembling with a sudden, overwhelming pride. "That is... more than sufficient. Naruto Uzumaki, you pass."
Naruto reached out, his hand steady as Iruka placed a blue forehead protector into his palm. Naruto didn't tie it around his head. He looked at the metal plate, the leaf symbol reflecting his own cold, determined eyes.

"Thank you, Iruka-sensei," Naruto said. He turned to leave, his clone dissipating not into smoke, but simply "unfolding" back into the air, leaving a faint scent of rain and ozone behind.

As he walked past Mizuki, Naruto paused. He didn't turn his head, but his voice was low enough only for the traitorous instructor to hear.

"I can see the glint in your eyes, Mizuki. I know what you’re planning for tonight. I’d advise you to reconsider. My 'clones' aren't the only thing that's changed."

Before Mizuki could respond, Naruto was gone, his silhouette disappearing into the bright morning light of the hallway.

Inside his mind, the Yin-Kurama chuckled darkly, his crimson eyes glowing in the darkness of the mindscape. "The game has begun, Naruto. Let's see how long this 'Old Man' can keep his secrets once you start breaking his reality."

Naruto gripped the headband in his hand, his knuckles turning white. "He won't have a choice, Kurama. By the time I'm done, the truth will be the only thing left standing."

He walked out of the Academy doors, the weight of his Jikūton chakra thrumming under his skin, a silent promise of the storm to come. The "Dead Last" was gone. The god of Space and Time had arrived.