Yin Release creates form from nothingness.
Yang Release breathes life into that form.
And Kurama had just injected Naruto with a massive dose of Yang tainted by hatred.
Like pouring ink into already-black water—
The mixture darkened, deepened.
Under the fox demon's gaze, Naruto's body changed.
Craaaack... Ssshh...
Bones and muscles vibrated at high frequency.
An expansion—from the inside out.
Visible to the naked eye:
His frame thickened, his muscles became denser.
And most notably...
His height.
Always one of the shortest in his class, he suddenly grew.
Goodbye, nickname "shorty" from the original story.
Bathed in yang chakra, his body underwent a radical transformation...
But that wasn't the end of it.
1. His understanding of Yang:
The massive flow of yang chakra etched this affinity into his flesh.
Instant mastery of nature transformation.
2. The next step:
Crystallize that yang into techniques — Yang Release.
Medical ninjutsu, Akimichi expansion techniques...
All these variations share one thing:
"Specialized manipulation of the physical body."
His own... or others'.
The sealed beast within him, now stimulated, swelled beyond measure — surpassing 99.99% of its kind.
His terrifying aura, 10,000 times more intimidating than a mouse, could make any kunoichi tremble.
And then—
Naruto's body kept evolving.
---
At the orphanage...
The burst of yang chakra didn't go unnoticed.
Even the non-sensors felt that presence coming from Naruto's dorm.
Patapatapata!
Hurried footsteps echoed in the hallway.
Yūgao and Nonō, rushing in, stared at the door marked "Do Not Disturb."
Yūgao: "This sensation..."
Nonō: "Yang chakra..."
But the intensity was unimaginable.
A lake? A mountain? No comparison was enough.
More like... an ocean of chakra-lava.
Yūgao suddenly remembered Naruto had been asking Nonō about Yang all day.
I thought it was just childish curiosity...
But this...
Nonō, pretending ignorance: "Such a quantity of Yang... Who are you, really?"
A spy for Danzō, she knew the truth.
Yūgao said nothing.
I'll never reveal he's a jinchūriki.
"Nonō-san... Is he okay?" she finally asked.
Nonō, a Yang expert, had seen similar cases:
Only tailed beasts or their hosts can produce that kind of energy.
And Naruto was using only Yang — no risk of an accidental bijūdama.
The orphanage is safe.
Just as Yūgao was about to kick the door down...
Poof.
The pressure vanished.
Creeeak...
The door opened, revealing a seemingly unharmed Naruto:
"Good morning, Director~, good morning Yūgao-neechan~!"
The two women stared.
Taller?
More muscular?
Even his aura had changed — the poise of a seasoned warrior, unfit for a child.
His face, slightly matured, shone with the glow of a sixteen-year-old teen.
The truth was simple:
A mature soul freed from the limits of an immature body.
Now... nothing holds me back.
He smiled wider.
Inside the mindscape...
Kurama's lair had changed too.
Vaster. More ominous.
"But most of all... darker," murmured the beast.
Absolute darkness — enough to drive a human mad.
Luckily, his eyes pierced the void.
"The darkness in his heart... unthinkable."
The mindscape reflected the host's soul.
Mito and Kushina had luminous spirits, like public squares.
Their Adamantine Chains pinned Kurama to a floating sphere — uncomfortable, but bright.
"Uzumaki Naruto is... different."
The enlarged cage now allowed the fox to move around.
But these infinite shadows...
Like a prophecy of the world's end?
"I gained freedom... only to find worse?"
The true abyss within the boy was beginning to unveil itself.
---
Mind and body influence each other.
A body strengthened by yang boosted Naruto's confidence.
And greater ambitions began to grow.
Yūgao, concerned: "Are you okay?"
Naruto, exuberant: "Better than ever~!"
I understand everything now.
The invisible chains holding him back had loosened.
At last... I can act freely.
But first...
Go home.
The yang had empowered his body... and aroused the beast within.
Now, just wait for Hyūga Aobato come to me...
...and release this pent-up tension.
Outside...
Shisui, posted there for hours, had seen everything.
His Sharingan clearly perceived chakra colors.
His Mangekyō stared into the horror pouring from the dormitory:
That crimson hatred...
"What a disgusting sensation...!"
A physical discomfort ran through him.
"This chakra full of resentment... What are you, Uzumaki Naruto?"
Whatever he was — his energy didn't lie.
The Nine-Tails demon truly earned its name.
Maybe Itachi was right...
We must keep Sako away from him.
Immediately.
He left to warn Itachi, determined to isolate Sako until Naruto was proven harmless.
Not far away...
Hayate, equally stunned, turned his attention to Shisui.
"I knew it!"
His gaze froze as he saw Shisui standing still.
"The Uchiha covet the Nine-Tails."
Positioned behind Shisui, he couldn't see his unique pupils.
And Shisui, facing away, had no idea he was being watched.
A missed opportunity.
Suddenly, Shisui stood and left.
"He's going back to the Uchiha HQ?"
Entering their district without clearance was risky...
"I'll ask Yūgao to follow him."
He entered the orphanage to report his findings.
Yūgao nodded and headed for the ANBU HQ.
There, cameras monitored the Uchiha 24/7.
If Hayate is right...
Shisui will go either to Fugaku or the police station.
Kakashi-senpai and Tenzō are already on it...