This was the genjutsu Naruto had once demonstrated to Yūhi Kurenai.
Kurenai had practiced it for many years and finally succeeded.
Click—
Kurenai reached out and removed the mask from the phantom's face, revealing half of a twisted, distorted countenance.
The other half of the face, perfectly intact—
…looked exactly like her former classmate.
Uchiha Obito.
At this moment, Obito realized that Kurenai was using the genjutsu Naruto had once employed.
Panic instantly surged within him.
Is Naruto nearby?
No—impossible!
Then how could Kurenai know this technique?
Where did she learn it?
One had to understand—
Even the current Naruto had not officially developed this genjutsu yet!
And the only genjutsu prodigy Kurenai had ever interacted with—
Was that man.
Shizuki!
Could it be—
Shizuki was Naruto?
And Naruto was Shizuki?
When Obito connected this with the Flying Thunder God mark he had discovered near the Dragon Vein, everything became clear.
Heh…
So Naruto had also traveled through time.
And he had returned all the way to his academy days.
He had even appeared as the transfer student—Kamitsuki-kun.
Yet for some unknown reason, Naruto, under the identity of Shizuki, had merely experienced life at the Ninja Academy before leaving.
He never laid a hand on young Obito.
This both relieved Obito—and made him sneer at Naruto's naïveté.
"Heh… kind-hearted people are not fit to survive in the ninja world."
Obito said this coldly, though the words made little sense to Kurenai.
Then Obito asked calmly, "Do you really think this illusion can stop me?"
"Why should I even fight you?"
Turning away, Obito abandoned Kurenai and her illusion, intending to pursue Naruto's location.
Kurenai's expression sharpened.
She immediately formed hand seals.
"Genjutsu — True Illusion."
From Obito's perspective—
The entire world instantly turned black and white.
The surrounding scenery vanished.
Only an endless void remained.
Obito himself.
Kurenai.
And the illusion.
Obito stopped and turned back, confusion flashing through his eyes.
True Illusion?
What kind of genjutsu was this?
Why had he never heard of it?
But it didn't matter.
Kamui could escape anything.
Obito activated Kamui, attempting to warp away—
But it failed.
"…What?"
Obito frowned.
"Is this illusion interfering with Kamui?"
He immediately formed a hand seal.
"Genjutsu — Release!"
A massive surge of ocular power erupted from his Sharingan.
Yet—
The illusion remained.
Unshaken.
Unbroken.
"What's going on?" Obito demanded.
Kurenai replied calmly, "As you heard—it's called True Illusion."
She had taken the genjutsu Naruto taught her and applied its effects not to people—
But to the environment itself.
Normally, chakra cannot persist in the air for long.
Thus, she constructed a world of complete emptiness.
And yet—
This illusion was real.
Kurenai understood something crucial:
When Genjutsu Release is used, this world is real.
When other ninjutsu are used, it becomes illusion.
Furthermore—
She integrated the technique with Kurama Yakumo's Bloodline Limit chakra circulation principles.
In other words—
Within this illusion…
Kurenai's words could become reality.
Obito listened, but remained composed.
"You think a single genjutsu can defeat me?" he scoffed. "How naïve."
His illusionary double stepped forward, appearing beside Kurenai and confronting Obito directly.
Seeing this, Obito immediately understood the structure.
This genjutsu existed in a paradoxical state—
Neither fully illusion nor fully reality.
It couldn't be dispelled.
And Space-Time Ninjutsu couldn't activate.
Troublesome.
But it had a fatal flaw.
Just like Kamui—
This genjutsu could only exist in one state at a time.
As long as Obito seized the moment when Kurenai switched states—
He could activate Kamui.
Just like Namikaze Minato had once exploited the interval in Kamui to strike him with Flying Thunder God.
Sensei…
Even after all these years, your teachings are still saving me.
Obito quietly observed Kurenai's movements.
Once she switched states—
He would drag both of them into the Kamui dimension.
There, it would be his domain.
And Kurenai—
A genjutsu specialist with weak taijutsu—
Would die instantly.
But—
Something unexpected happened.
Kurenai didn't move at all.
She merely maintained her hand seals.
Instead—
The copied Obito illusion attacked him.
However, due to limited chakra, it could only use ordinary attacks.
Obito laughed.
"I admit it—you're the most talented genjutsu user I've ever seen."
"But your chakra reserves are pitiful."
"This is your weakness."
"Even copying me means nothing if you can't sustain it."
"Flashy—but useless."
Poof—
Obito destroyed the illusion and stepped forward.
Kurenai showed no panic.
Instead, she said calmly—
"But what if it's like this?"
As stated before, Kurenai had merged Naruto's genjutsu with True Illusion—
Using Kurama Yakumo's chakra circulation principles—
Applying everything to the environment itself.
Within this world—
Kurenai was supreme.
"I declare," she said softly,
"My chakra is equal to the God of Shinobi."
To Obito, it sounded like madness.
But the next instant—
Terrifying chakra erupted from Kurenai's body.
Even—
Wood Release–level chakra pressure.
"W-What?!"
Obito staggered back, staring in horror.
That chakra—
There was no mistake.
Senju Hashirama.
This was unquestionably the First Hokage's chakra intensity.
Obito's expression shifted from arrogance to shock.
Why were there so few Kage-level genjutsu ninja?
Because genjutsu had limits.
Almost no one could reach Kage-level strength relying on genjutsu alone.
But the genjutsu before him—
Was completely beyond reason.
Kurenai continued calmly,
"Then tell me…"
"With the First Hokage's chakra reserves…"
"How many versions of you—
With equal chakra, experience, ninjutsu, taijutsu, and genjutsu—
Do you think I can create?"
The next second—
Phantom figures began emerging around her.
One.
Two.
Five.
Ten.
More than a dozen Uchiha Obito clones, each radiating full combat power, surrounded him.
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