Naruto: Reborn With An AI Chip

"You—!"

Zeri blinked in disbelief as he watched Renjiro calmly draw his blade.

Renjiro only smiled and said in a calm, steady voice: "Come on, Sensei. It's far too early to talk about giving up, don't you think?"

"You… you've recovered?" Zeri asked, hesitating for a moment. Then he added in a stern voice: "That's impossible. Don't be reckless. This isn't the time to play the hero—follow my orders!"

"This isn't recklessness, Sensei. I'm better now—thanks to Eiko-senpai." Renjiro replied, shaking his head with a faint smile.

His body had truly recovered. Thanks to focused medical ninjutsu, reinforced by chakra bandages and his own steady chakra control—stimulating cellular repair under Arkain's guidance—his legs had healed far faster than expected.

By following the principles of traditional medical jutsu, enhanced with precision calculations from Arkain, Renjiro had brought his legs back to the point where he could move freely once more.

After all, Renjiro's injury hadn't been severe—more of an acute strain caused by sudden overuse. With proper care and focused treatment, it had healed surprisingly quickly.

"You're serious?" Zeri asked hesitantly, clearly unconvinced.

Even though they hadn't known each other long, he had come to understand one thing—Renjiro wasn't the type to bluff, not in a situation like this, and not when his life was on the line.

"Sensei, this isn't the time to argue. Please—believe in me." Renjiro said solemnly, his eyes filled with confidence and resolve.

The moment they'd been surrounded, he had activated Mind Net, mapping every movement in their vicinity with razor-sharp precision. And while he and Zeri exchanged words, the enemy had already launched their assault.

With just one initial clash, several Konoha shinobi had already fallen.

They might have had the numbers, but most were injured, exhausted, or rookies with little battlefield experience. There wasn't even a single Special Jonin among them—let alone a full-fledged Jonin like their enemy.

Their highest combat power came from elite Chunin like Zeri and Tachibana, but against a Jonin backed by six elite Chunin, they were at an overwhelming disadvantage.

Zeri's eyes flashed red with frustration, his jaw tightening as he gritted his teeth, his voice filled with helpless fury as he said: "Then what do you propose we do?"

"That's more like it." Renjiro said with a faint grin—but behind that smile, he was deadly serious.

Without wasting a second, he issued a mental command to Arkain: "Arkain—analyze the strength of both sides immediately. Deduce a tactical strategy with the highest survival probability. Simulate optimal escape and engagement patterns based on all available assets."

[Beep! Mission Established! Compiling Data! Connecting to the database! Simulation Complete!] Arkain's mechanical voice rang in Renjiro's mind.

"Transmit all data immediately!" Renjiro commanded inwardly.

[Transmitting Data Initiated… Transmission Completed!]

As Arkain's analysis surged into his mind, Renjiro's expression turned pale: "We only have a 30% chance of survival?" He muttered, disbelief tightening in his throat.

[Based on current battle conditions, team composition, and tactical options… estimated optimistic survival probability: 30%.] Arkain's cold and emotionless voice made Renjiro's expression even grimmer.

"Compared to them, we're too weak. If we fight… many of us will die." Renjiro muttered in a low voice. Then he let out a heavy sigh: "But it's still better than all of us falling here without a fight…"

Renjiro knew he had no time for hesitation or indecision—every second counted. In a situation this dire, even a coin toss would've been better than standing still. And truthfully, a 30% chance of survival was already very high, considering the odds they were facing.

"Ahhh!" Renjiro took a deep breath, then immediately began to arrange new tactics.

"The injured will retreat from the front line and switch to long-range attacks!" Renjiro shouted, issuing commands in a loud, clear voice.

When the Konoha shinobi saw Renjiro begin organizing tactics, they immediately followed his instructions. No one questioned his orders—Renjiro had long since earned their respect.

"All Chunin—team up with the Genin to hold off the enemy Chunin!"

Konoha's Chunin weren't weaker than their Mist counterparts—but they were worn down, their strength exhausted by hours of relentless combat. Even so, Renjiro knew they could still hold the line—if they followed his tactics.

"As for the enemy Jonin…" A hint of coldness flashed across Renjiro's eyes.

He pulled a handful of soldier pills from his pouch and swallowed them all at once: "Leave him to me. I'll hold him back!"

"What?!"

"No way!"

"Absolutely not—you'll be dead in seconds!"

When the others heard that Renjiro intended to personally hold back the enemy Jonin, the reaction was immediate—an uproar of disbelief and protest. Sending a Genin to stall a Jōnin? It sounded like suicide—madness born of desperation.

But no one could offer a better plan.

And worse—no one could name a single person among them who stood a real chance of stopping the enemy Jonin, even for ten seconds.

"Renjiro! This is suicide! You're not seriously thinking of fighting a Jonin, are you?!"

One of the older veteran Chūnin stepped forward, his voice filled with concern.

"You're too young to carry a burden like this. Let my old bones make one last contribution to the village." He shook his head firmly, clearly prepared to take Renjiro's place—ready to stand against the enemy Jonin.

Looking at the old Chunin, Renjiro's heart filled with warmth. He took a deep breath, then spoke with quiet resolve: "Thank you, Takeshi-ojii-san… truly. But this time, it has to be me. If anyone else tries, we'll all die here. Only I can pull this off."

"Are you sure about this?" Zeri asked, his voice serious, edged with worry and concern.

Renjiro stepped forward, standing tall in front of him. A calm, confident smile appeared on his face: "What I need from you is simple: take down those Chunin—fast. Then come help me."

"But—" Maemon and Meri tried to object, but Zeri raised his hand and stopped them: "We will follow Renjiro's plan."

Renjiro grinned and gave him a thumbs-up: "Thank you for putting your trust in me, Sensei."

"Let's attack!"

After saying that, Zeri charged at a Mist Chunin.

Meri and Maemon hesitated for a moment—then wordlessly sprinted after him. They didn't know what to say to Renjiro in that moment, so instead, they let their actions speak for them.

We're with you—all the way to the end!

Renjiro watched their backs. That was what trust looked like.

"These brats..." He muttered with a small, fond smile.

With no hesitation, Renjiro turned and sprinted toward the enemy Jonin.

"Letting a Genin face a Jonin… really shows how far we've fallen." Takeshi muttered bitterly, his gaze fixed on Renjiro's back.

Another Konoha shinobi clenched his fists, a bitter smile appearing on his face: "All we can do now is take down the Chunin—fast—and get to Renjiro before it's too late."

Then he dashed forward to support Maemon and Meri.

"Mitsoko Squad, let's go! We're not falling behind!" Another shinobi called out, leading his squad into battle.

---

Renjiro stood before the Mist Jonin, his chakra was burning hot in his veins—not from excitement, but from the soldier pills he'd taken earlier.

"What is this, a joke?" the Mist Jonin sneered: "They sent a Genin to face me?"

Renjiro smirked and said: "For someone like you… one Genin is more than enough."

"Hah… you've got guts, I'll give you that." The Jonin laughed darkly: "But it's going to cost you your pathetic life."

The moment the words left his mouth, his body blurred—and vanished.

[Beep! Chakra fluctuation detected—likely Body Flicker Technique!] 

Arkain's warning came a moment before a kunai tore through the air.

Whoosh!

Soru!

Whoosh!

Renjiro instinctively used Soru—his high-speed movement technique—and vanished just before the strike landed.

The Jonin appeared in Renjiro's former position, his kunai slashed through empty space.

"Huh? Where'd he—?"

Before he could finish the sentence, three shuriken flew at his back.

The Jonin twisted—too late. He flinched, trying to dodge—

[Beep! Incoming threat—priority evasive action!]

"Damn it!"

Renjiro tried to use Soru again, but pain shot through his legs. His body refused.

Plan B—it was time to use a Substitution Jutsu.

Up above, the Mist Jonin appeared—kunai flashing as he dove straight down.

A clean hit—Renjiro was calved into two halves.

Poof!

Renjiro's severed body turned into two halves of a log.

"Substitution Technique?" The Jonin muttered, frowning.

---

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