Sakura sprinted across the village in search of Tsunade, leaving Akira and Kakashi alone in the now-quiet training ground. The dust was still settling from the destruction caused earlier.
Akira crossed his arms and spoke casually:
"Naruto and Sasuke… honestly, I'd say both of them already have the strength of elite chunin."
Kakashi nodded with his usual eye-smile.
"Hmm. Their fundamentals are strong. Give them a month of proper training and they can fight special-jonin level opponents."
Akira sighed.
"But Sakura… well…"
Kakashi chuckled lightly.
"Sakura is a typical fresh grad from the Academy."
Akira nodded in agreement.
She barely knew any offensive ninjutsu. Water Walking, Tree Walking—basic chakra control, nothing advanced.
Her taijutsu was good in theory, but she never used it properly.
Still… she had potential.
Meanwhile, Akira placed his hands together and used:
"Earth Style: Earth Flow River."
The uneven battlefield, full of broken stones, holes, mud, and rubble—smoothened like a construction site being reset.
The coarse stones dissolved into peat-like mud, then hardened into even ground.
Akira admired his handiwork.
"Ninjutsu is amazing… In my old world, this would take weeks of labor."
---
Fifteen Minutes Later
Sakura returned—panting—and behind her walked Tsunade, Jiraiya, and Fugaku.
Akira blinked.
Tsunade he expected.
Jiraiya… well, he always followed Tsunade around when he was bored.
But Fugaku?
Akira didn't know how he found out.
But seeing him walk calmly, hands behind his back, eyes sharp—it was clear he had come to evaluate.
Akira didn't mind. Showing strength was a good thing.
Tsunade walked directly to Naruto and Sasuke without speaking.
Green chakra enveloped her hands as she began treatment.
Fugaku examined Sasuke's injuries. His expression did not shift.
Then he simply nodded at Akira.
A meaningful nod.
You trained my son hard. Good.
Akira subtly relaxed. He knew Fugaku wasn't petty. In the ninja world, these injuries were nothing.
Under Tsunade's hands, Naruto and Sasuke would be fully healed in under a day.
---
Fifteen more minutes and Naruto jumped up—like nothing happened.
Great Uzumaki vitality.
Sasuke, meanwhile, managed only to sit upright, scowling at everyone.
Both boys moved to the edge of the training ground to watch.
There was only one thought in both their minds:
"Kakashi-sensei, you better beat that bastard Akira."
If Akira heard this, he would definitely laugh.
Sakura, Tsunade, Jiraiya, Fugaku, Naruto, and Sasuke—all took their positions as spectators.
---
Kakashi tightened his headband, pulling it up to reveal the Sharingan.
Akira cracked his neck, stepping forward.
Kakashi: "Use your full strength. If anything goes wrong, Tsunade's here."
Akira: "You too, Kakashi-sensei."
Suddenly—Yatagarasu (the crow) dropped from the sky and pecked Akira's head.
Akira flicked its beak.
" Let's do warm up first and then we will use Sage mode."
Yatagarasu nodded and perched on a nearby tree branch.
Tsunade raised her hand.
"Match start!"
---
Kakashi and Akira moved at the exact same time—
Earth Style: Mud Dragon Bullet!
Twin dragons of swirling mud erupted from the ground, lashing at each other.
Mud exploded mid-air as both jutsu neutralized simultaneously.
Next—
Earth Style: Ground Collapse!
Both punched the ground.
Two sinkholes tore open on each side, exploding with rock and debris.
Naruto gagged.
Sasuke held his head.
Sakura was dizzy.
If not for Jiraiya and Tsunade supporting them, they might have fainted just from chakra pressure.
---
Akira:
"Wind Style: Great Breakthrough!"
Kakashi:
"Wind Style: Great Breakthrough!"
A massive gust collided between them, creating a sonic boom.
Earth Release: Earth Wave Technique
Earth Release: Earth Wave Technique
Lightning Release: Lightning Beast Tracking Fang
Lightning Release: Lightning Beast Tracking Fang
They were evenly matched.
Naruto and Sasuke screamed internally:
STOP COPYING EACH OTHER!!
---
Akira's hands blurred.
"Water Style: Mist Blind Seal!"
Mist flooded the battlefield.
Visibility dropped to near zero.
But Akira smiled.
His natural sensing ability was active.
Kakashi, however, narrowed his eye—he couldn't see clearly.
And then—
Six Water Dragons rose behind Akira.
"Water Style: Water Dragon Jutsu!"
Six roaring dragons rushed toward Kakashi.
---
Kakashi's fingers blurred.
Not 44 signs.
Not even 20.
Just 4.
"Water Style: Water Dragon Jutsu!"
A massive clash shook the ground.
---
Akira inhaled deeply.
He finally had enough chakra for it—
"Fire Style: Great Fire Annihilation!"
A wall of flames several meters high surged forward like a tsunami of fire.
Even Jiraiya raised an eyebrow.
"This kid really has that jutsu…?"
Kakashi responded in a flash:
Lightning Style: Chidori Stream!
Electricity exploded around him, enhancing his body.
He dashed out of the fire's path and came behind Akira.
Lightning style : Chidori
Only for Akira to use:
Wind Style: Gale Pulse Burst!
A sudden blast of compressed wind struck Kakashi, sending him flying back, skidding across the newly flattened ground.
The warm-up was over.
The real clash was about to begin.
---
The battlefield fell eerily silent.
No wind.
No birds.
No breath.
Then—
Akira vanished from sight.
He reappeared in a blur, rushing at Kakashi with a katana that he summoned with a sealing jutsu.
The blade flashed silver.
Kakashi's eye narrowed.
His hand moved to his pouch.
Shing—
He drew a short chakra blade.
The next moment—
Kenjutsu Clash: Lightning and Wind
Both ninja exploded with lightning release around their bodies.
Their swords crackled.
Their movements blurred.
Then wind chakra wrapped around their weapons—sharp, whisper-thin, deadly.
Naruto:
"W–WHAT!? I can't even see them!!"
Sasuke (eyes wide):
"That's… that's not speed. That's insanity."
All they heard were:
BANG–BANG–CHZZTT–BOOM!
Thunderclaps.
Lightning bursts.
Two streaks of blue and white colliding again and again.
Both blades moved too fast for even Sharingan-level perception.
Jiraiya smirked.
"This is… high jonin level kenjutsu. Kakashi's enjoying himself."
Tsunade folded her arms.
"Akira's pushing him harder than expected."
---
After ten minutes of pure speed—
CLANG!
Akira locked blades with Kakashi, then used brute strength to push him back several meters.
Akira's stance shifted.
Sasuke squinted.
"…Suicide charge?"
Even Kakashi blinked.
Akira lowered his blade and sprinted directly at him.
That wasn't a stance.
That wasn't a technique.
That was a reckless, head-on, stupid rush.
Kakashi's instincts screamed.
This is a trap.
---
Kakashi expelled chakra.
"Lightning Style: False Darkness!"
A long, spear-like beam of condensed lightning burst from his mouth—fast enough to pierce steel.
It impaled Akira directly in the chest—
—except—
Akira's body erupted into lightning.
A clone.
BOOOOOM!
The lightning clone detonated violently, forcing Kakashi to leap backward.
He landed safely.
Then froze.
---
40 meters away.
No sound.
No chakra signature.
Only a faint breeze remained where he once stood.
Kakashi sensed it.
"When… did he—?!"
Jiraiya laughed.
"That kid's ninjutsu control is monstrous."
Fugaku's eyes narrowed.
"Fast. Too fast. He hid that movement inside the lightning clone's explosion."
---
Akira slammed his hands to the ground.
"Earth Style: Planetary Burial Technique!"
The earth shook violently.
Two enormous hemispheres of solid rock erupted around Kakashi, trying to crush inward and smash him flat like a sandwich.
Kakashi reacted instantly—
Earth Style: Giant Earth Golem!
A massive humanoid golem rose from the ground behind Kakashi.
It caught both hemispheres with its hands—
GRRRRHHHHHKKKK!!
The golem strained, cracking under the pressure.
Kakashi dropped to one knee.
His breath grew heavy.
His chakra was nearly gone.
The earlier water dragons… the lightning… the mist… the chakra-enhanced kenjutsu…
All of it drained him.
Meanwhile—
Akira stood calmly, his breathing steady.
He still had 70% chakra left.
Tsunade frowned.
"Kakashi's chakra reserves… really are his weakness."
---
Akira approached slowly.
"Kakashi-sensei, do you want to stop? Your condition isn't good."
He said it teasingly.
Kakashi chuckled bitterly.
"…So that's how it is, huh?"
He stood up shakily.
Eye sharp.
Sharingan spinning.
"Akira. I have one last attack."
He lifted his hand.
Lightning gathered.
The sound of birds chirping filled the air.
"Take this… and you win."
Naruto jumped to his feet.
"KAKASHI-SENSEI'S CHIDORI!?"
Sasuke clenched his fists.
"No… that's not normal Chidori. This chakra density—"
Jiraiya smirked.
"So he's using that one, huh…"
Kakashi lowered into a stance.
His chakra became sharp, focused, lethal.
Lightning crackled around Kakashi's hand.
The chidori's sound grew sharper—more violent—
like thousands of birds screaming all at once.
Raikiri.
The Lightning Blade.
This was Kakashi's strongest assassination jutsu.
Akira slowly inhaled.
He didn't have a good counter for Raikiri.
There were only two options:
1. Use Sage Mode—his absolute last resort.
2. Use the Genjutsu he learned from his previous daily simulation.
Akira chose the second.
His eye shimmered faintly.
He didn't move his hands.
He didn't weave signs.
He simply looked at Kakashi.
---
Genjutsu: Infinite Mirror Prison
A silent pulse of chakra left Akira's eyes.
The air shimmered—
—then shattered like glass.
Kakashi's pupils tightened.
His forward motion stopped.
His mind was dragged inward.
A hall of endless mirrors.
His shadow reflecting back at him.
Every thought echoing infinitely.
Kakashi mind was trapped.
A-rank Genjutsu.
One of Akira's deadliest tricks—
and one he could barely control.
Jiraiya's expression changed instantly.
"Genjutsu… without hand signs?"
Tsunade clenched her fists.
"He trapped Kakashi in one hit… That Genjutsu is dangerous."
Fugaku's Sharingan spun sharply.
"The reflection cycles… That's not Uchiha Genjutsu. That's something else."
Naruto gulped.
"Kakashi-sensei… can't move."
Sasuke frowned.
"This… is bad."
---
Akira was calm now.
His reasoning was correct:
Kakashi's Mangekyo wasn't truly his.
Without Uchiha bloodline, Mangekyo doesn't give full Genjutsu resistance.
And Akira's 3-tomoe Sharingan was not normal—
It carried Indra's full bloodline purity.
Even if Kakashi used his Mangekyou,
breaking out would take time—
More time than Raikiri would allow.
Akira exhaled.
It's over.
Even he thought so.
---
A pressure.
A crushing sense of death.
A killing intent so sharp his spine froze.
His instincts screamed.
"Move."
"Run."
"You will die."
Akira's chakra flared on its own.
He didn't know why.
He only knew one thing:
Kakashi should NOT be able to move.
Not under Mirror Prison.
Not under A-rank Genjutsu.
But—
Something was happening inside the Genjutsu.
The world around Akira darkened.
The light flickered.
And then—
---
A single sound echoed.
Crack.
Akira's eyes widened.
The infinite mirror world he cast…
…fractured.
A hairline fracture spread across the Genjutsu realm like a spiderweb.
A tear of blood dripped from Kakashi's Mangekyou.
He whispered—
voice echoing between dimensions—
"Kamui."
And the Mirror Prison—
BLEW APART.
---