"Red Sun? That's a bold title."
"Let's see if you can take a punch!"
A isn't intimidated—instead, his fighting spirit surges.
He charges forward and throws a punch at Ren.
Ren's expression remains calm.
His pupils turn crimson—
Three tomoe Sharingan spin into view.
The Sharingan, the Uchiha clan's kekkei genkai—one of the Three Great Dōjutsu.
Ren's visual prowess pushes its dynamic perception to the limit.
Even A's speed cannot escape his sight.
Ren steps back, lowers his center of gravity—
—and throws a punch to meet A's head-on.
"Going blow for blow? Just what I wanted!"
Though A's Lightning Release Chakra Mode focuses more on speed than his father's, his strength and defense are still monstrous.
In raw power—
He fears no one.
A sneers, putting even more force into his punch.
The two fists collide—
A's lightning-wreathed fist looks massive—
while Ren's appears smaller, almost refined.
But just before impact—
Whoosh—!
Ren's fist ignites in blazing flames.
"Fire Fist!"
The ground beneath him cracks as scorching flames erupt—
instantly engulfing A.
A massive flaming fist forms, blasting him backward dozens of meters—
smashing through trees and carving a scorched trench into the earth.
"Brother!"
"Lord A!"
Killer B and the Kumogakure ninja shout in shock.
A—losing in a direct clash?
"Nothing surprising," Ren says lightly, shaking his slightly numb hand.
"Fire's nature is explosive power—and heat."
But inwardly, he grows more cautious.
A truly lives up to his reputation.
Ren… wasn't originally from this world.
After an accident, he transmigrated here—
becoming an ordinary jōnin of the Uchiha clan, orphaned at a young age.
The past no longer matters.
But based on the original course of the Naruto story—
being reborn as an Uchiha…
is practically a doomed start.
Beyond the Uchiha clan's internal strife, they were also suppressed externally by the Hokage faction—led by the Third Hokage, Hiruzen Sarutobi, and the ever-shadowed Danzō Shimura.
Within the clan, there were arrogant members who couldn't see the bigger picture, constantly courting disaster.
And on top of that, there were several dangerously unstable individuals—ticking time bombs who could snap at any moment.
Uchiha Ren's situation could hardly be described with a single word like "difficult."
Fortunately, he had transmigrated early enough—
There was still a long time before the Uchiha Clan Massacre.
That meant—
There was still a chance to change the clan's fate.
And like most transmigrators, Ren had his own "cheat."
Although compared to others, his was rather modest—
Just a single ability from another world:
The Flame-Flame Fruit (Mera Mera no Mi).
Yes—the very same Logia-type Devil Fruit often mocked by fans as "not even worth eating."
But Ren himself was more than satisfied with it.
Simply put, the Flame-Flame Fruit grants control over fire—
To create fire, control fire—
and become fire itself.
Its previous user, Portgas D. Ace, hadn't fully realized its potential, ultimately dying at the hands of Akainu, the user of the Magma-Magma Fruit.
Combined with the fact that in that world many people could already produce flame-based attacks, the fruit had earned its infamous reputation.
But was it truly weak?
Or was the power of fire itself weak?
In Ren's view—
Not at all.
Although the Magma-Magma Fruit was considered a superior ability in that world, Ren believed the Flame-Flame Fruit was not inherently inferior.
Both magma and fire share explosive force and extreme heat.
Magma, being a physical substance, has greater impact force—
But in terms of temperature, fire holds overwhelming potential.
Magma peaks at around 1,400°C.
Fire, however, can increase indefinitely through energy accumulation.
In Ren's previous world, flames could be artificially heated to over 500 million degrees—
Dozens of times hotter than the sun's core.
The difference speaks for itself.
The Flame-Flame Fruit holds near-limitless potential.
Fire was never weak.
Just like that old man from another series—hailed as the strongest in two thousand years—whose flame-based sword was constantly sealed because of how overwhelming it was(Yamamoto Genryūsai from Bleach).
So the problem was never the power—
It was the user.
Having lived in an era of information explosion, Ren believed his understanding of fire far surpassed Ace's.
Combined with the chakra system of this world—
He would never disgrace this power.
And this ability gave him the confidence—
To change everything.
For years, Uchiha Ren had remained in the shadows—
Strengthening himself.
Building influence.
Establishing connections.
Quietly accumulating the power needed to reshape the world.
Now—
The Third Great Ninja War was nearing its end.
His preparations were complete.
He could no longer wait.
It was time to end the war—
And begin his move.
"Minato, leave the Eight-Tails' jinchūriki to me—no, to you. Capture him alive if possible."
Ren exhales slowly and turns to Minato Namikaze.
Minato isn't just fast—
Thanks to Kushina Uzumaki, he's highly skilled in sealing techniques.
He's the best choice to handle Killer B.
In canon, Minato died sealing the Nine-Tails—
But the Eight-Tails is not the Nine-Tails.
In a direct comparison, Gyūki isn't even close to Kurama's full power.
And more importantly—
Minato's death was likely a matter of choice.
At the time, he and Kushina had already stabilized the situation, and Konoha reinforcements were arriving.
If other villages could restrain rampaging Tailed Beasts, could Konoha—heir to the Uzumaki sealing arts—fail to handle a controlled Nine-Tails?
In the end—
Minato chose to bear everything himself.
"I understand. Leave him to me."
Minato smiles brightly, full of confidence.
"Then let's end this quickly."
Ren's body ignites in roaring flames as he shoots toward A once more.