Naruto: I Have Doraemon

"Hmph..."

After stabilizing the Fourth Gate, Kakashi's body glowed with a vivid green aura, and the White Fang Short Sword in his hand radiated a faint green fluorescence.

With a low shout, Kakashi disappeared from Obito's view in a flash, moving as swiftly as lightning.

Almost instantly, Kakashi's White Fang Short Sword slashed across Obito's body—but it passed through harmlessly, as Obito was still in his intangible state.

"Still the same... huh?

In that case, the only option is to increase the speed of my attacks and look for an opening!"

A sharp light flashed in Kakashi's eyes as his figure vanished again, striking at Obito with incredible speed.

In mere moments, Kakashi seemed to multiply into afterimages, attacking Obito from every angle with blinding agility.

With the enhancement of his Mangekyō Sharingan, Kakashi could clearly track Obito's movements while maintaining precise control over his own.

Because of his extraordinary speed, Obito was soon surrounded by Kakashi's afterimages, creating an overwhelming scene.

This display of speed resembled the legendary battle between Rock Lee and Gaara—but this was on an entirely different level.

Kakashi was operating with the power of the Eight Inner Gates, backed by Kage-level strength.

Even Might Guy at his current peak was only at the level of an Elite Jōnin.

For three relentless minutes, Kakashi continued his assault without pause. Obito, using his intangibility, endured the nonstop barrage, maintaining his hollow state.

"Damn it...

I can't keep this up!

If he figures out my secret—that I can only remain intangible for five minutes—the consequences will be disastrous."

Obito's eyes flickered with determination as he watched Kakashi continue his attacks. Making a quick decision, he began forming hand seals.

"Finally going on the offensive?

This time, I'll seize the moment!"

Seeing Obito's movements, Kakashi felt a surge of resolve. His White Fang Short Sword glowed brighter, and his speed surged again.

"Fire Style: Blazing Whirlwind Dance!"

Obito completed his hand seals and let out a low shout. The Mangekyō Sharingan in his right eye gleamed as the surrounding space distorted.

In an instant, fiery serpents emerged, spiraling outward from Obito. The attack created a fierce storm of flames that encircled him in an expanding vortex.

This was a combination of Kamui and Fire Style, where Obito warped the space around him while unleashing a massive, rapid firestorm.

The attack had an immense range and incredible speed. Even Kakashi, with all his agility, had no choice but to retreat momentarily to avoid it.

However, this retreat gave Kakashi a clear view of a new opportunity.

"The distance is too far...

But I can't let this chance slip away!"

With intense focus, Kakashi activated the Mangekyō Sharingan in his left eye, locking onto a part of Obito's body.

Kakashi's goal wasn't to destroy Obito entirely—he needed to subdue him and extract critical intelligence.

On the other side, Obito—still in his intangible state—suddenly felt the space around him distort. A familiar pulling sensation began to tug at him.

"This feeling... no!"

Obito's heart sank even as his face betrayed a flicker of joy. His own Mangekyō Sharingan flared to life, amplifying the space-warping force around him.

In an instant, Obito's entire body vanished into the Kamui dimension.

"What?! How?!"

Kakashi shouted in disbelief.

He had only intended to transport part of Obito's body—but somehow, the entire figure had been pulled into the Kamui space.

Inside the Kamui Dimension:

"So it really was you, Kakashi!"

Obito looked around at the distorted, familiar Kamui space, his expression a mix of shock and exhilaration.

"To think the person who awakened a Mangekyō Sharingan technique like mine isn't even an Uchiha...

An outsider with no Uchiha blood.

This is unexpected... but convenient."

Obito's eyes burned with excitement as his gaze locked onto Kakashi's Sharingan in his mind's eye.

"Forget finding Sako... I don't need her anymore!

Kakashi, your eyes are mine!"

Obito's shout echoed through the Kamui dimension as his fiery determination filled the distorted space.

As he spoke, the Mangekyō Sharingan in Obito's right eye spun again. His figure distorted and disappeared from sight!

Outside World

Kakashi, visibly exhausted from using the Eight Inner Gates, stared in disbelief at the distorted space in front of him. Suddenly, the masked man with the tiger-striped pattern reappeared!

"How is that possible?!"

Kakashi's mind raced. He had always understood Kamui as a spatial pupil technique used for warping away attacks or targets. But this man had reappeared after being sent away—completely intact!

"Is this... something else? Could the space where I transferred him not be an unknown exile dimension as I had thought?"

Kakashi broke into a cold sweat. His thoughts grew heavier with each passing moment.

"What if Kamui could transfer an entire person, rather than just part of a body or an attack?"

This realization hit Kakashi hard. The ramifications were staggering—it would essentially mean sending someone to Konoha Hospital for instant "registration!"

Weakened by the side effects of the Eight Inner Gates, Kakashi stood stiffly, drenched in sweat. His wariness of Obito only deepened.

"Also... this explains why Naruto can't locate Obito with the Kamui ability."

Kakashi reflected. "What Naruto copied was my Mangekyō Sharingan before the fusion of my eyes. Even with Naruto's extensive training and enhanced abilities from his Eternal Mangekyō Sharingan, he hasn't developed the level of control needed to transfer himself or others."

Kakashi frowned, continuing his thoughts. "Naruto's approach has always been... unorthodox. His attitude toward developing Kamui was lazy at best! Instead of refining the technique, he seemed to wait for Obito to appear so he could copy him and get the full Kamui eye effortlessly."

Obito reappeared in the distorted space, a sly smile on his masked face.

"The aftereffects of the Eight Inner Gates have left you immobilized, haven't they? Excellent. Now, your eyes... I'll be taking them!"

With an air of confidence, Obito approached Kakashi, his right hand reaching toward Kakashi's left eye.

Obito, familiar with Kakashi's pupil techniques, was no longer afraid of Kamui.

"Chidori Sharp Spear!"

Kakashi's voice erupted as he forced himself to gather chakra. Just as Obito closed in, Kakashi swung his White Fang Short Sword upward, extending it into a glowing lightning spear several meters long.

Obito activated his phasing ability, stepping into the attack with a dismissive tone.

"Pointless. I'll just—wait, what?! How is this happening?!"

Obito's voice turned to panic as he looked down at his body. At the point of contact with the Chidori Sharp Spear, his torso became distorted, flickering between the tangible and intangible.

Obito gasped, his waist now bleeding profusely.

"So, my hypothesis was correct," Kakashi muttered. His left eye glinted as his Mangekyō Sharingan rotated sharply. "My Kamui can interfere with your phasing ability and injure you. That's also why you can break free from my Kamui so easily."

Kakashi's gaze hardened. "In other words, our Mangekyō Sharingan techniques share a connection—a common, unknown space. And now... I've seen through your secret!"

Obito's eyes widened in horror.

"He... He figured it out... How is that possible?! Kakashi, is this the depth of your genius?"

Obito stood frozen for a moment, memories of their youth flashing through his mind. Back then, Kakashi's overwhelming talent had always dominated him. That same fear now crept back, clawing at his confidence.

Kakashi's voice rang out confidently. "Our techniques counterbalance each other. That much is clear. And I'd bet they operate within the same spatial dimension."

Kakashi's earlier moves had all been calculated tests to gather information. The art of deception and probing was the hallmark of ninja battles—disguises, traps, and constant misdirection.

Knowing Obito's phasing ability countered his Kamui, Kakashi reversed his strategy, using Kamui to transfer the Chidori Sharp Spear itself.

The results spoke for themselves.

"Summoning Jutsu: Toad's Mouth Bind!"

A rough, commanding voice suddenly echoed through the battlefield. The space around them was instantly enveloped in fleshy walls as if swallowed by a living creature.

"Jiraiya..."

Kakashi immediately recognized the jutsu. The legendary Sannin had arrived!

Obito gritted his teeth, glancing at his injury. Recognizing Jiraiya's presence as a complication, he turned his gaze back to Kakashi.

"Hatake Kakashi, this isn't over. I'll come for you again."

With that, Obito's Mangekyō Sharingan flared to life. Despite his injuries, the Hashirama cells in his body allowed him to perform Kamui faster than Kakashi could counter.

Obito's figure distorted and vanished in an instant.

Kakashi attempted to respond with Kamui, but his reaction came a split second too late. Instead of Obito, his technique only managed to warp away a section of the toad's stomach wall.

Jiraiya, observing this strange exchange, couldn't hide his astonishment.

"What... What kind of ninjutsu is this?!"

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