The playground of Konohagakure was filled with laughter, tiny sandals kicking up dust beneath the warm afternoon sun. Children ran in uneven circles, playing shinobi and hero, their wooden kunai clashing in harmless mock battles.
On a lonely bench near the edge of the yard sat a small boy with messy black hair and striking azure-blue eyes. His name was Ren, and though his body was only three years old, his mind carried memories far older.
He watched the children quietly, arms resting on his knees, expression far too calm for someone his age. The wind brushed against his cheeks, but it did nothing to cool the storm inside him.
Because Ren remembered dying.
One moment he had been living a normal life. Nothing extraordinary, nothing dramatic. Then, without warning, everything had gone black. The next second, he had been born crying into a world of chakra and bloodlines.
He had accepted reincarnation slowly, painfully, like swallowing a bitter pill that refused to go down. Yet what shattered his fragile acceptance came weeks after his birth—on October 10th.
The night the Fox attacked.
Even as an infant, fragments of memory burned inside him: screams, tremors, chakra so thick it suffocated the air. A monstrous roar that seemed to tear the heavens apart.
Later, through overheard whispers and gradual understanding of language, he learned the truth.
The Nine-Tailed Fox had attacked the village. And the Fourth Hokage had sacrificed his life to save it.
That was when Ren understood.
He wasn't just reincarnated.
He was in the world of Naruto.
At first, he had desperately hoped he was wrong. The language barrier during infancy had kept him confused, uncertain. But as words began to make sense and names became familiar, reality struck harder than any punch.
This world was not fiction.
This world was brutal.
As a story, he had liked Naruto. The underdog rising. The friendships. The dramatic battles.
But living here? That was different.
"They train six-year-old kids how to kill," Ren muttered under his breath, his tiny voice barely louder than the rustle of leaves. "Yeah… this world is messed up."
Children on the field shouted about becoming Hokage, about protecting the village, about glory. They waved sticks like swords and pretended to throw imaginary jutsu.
They had no idea what it truly meant.
They didn't understand that beneath the banner of "for the village" lay missions soaked in blood. That behind every smiling jonin stood a past filled with corpses.
Ren clenched his small fists.
"I'm just a civilian orphan," he whispered. "How am I supposed to survive this family-drama nightmare?"
He had no clan. No bloodline. No hidden technique passed down through generations. In this world, without lineage, you were background decoration.
Even someone like Might Guy—who trained his entire life—could only unleash a handful of devastating kicks before nearly dying. And then there were monsters like Naruto and Sasuke.
"They just got power boosts from their sugar daddies," Ren muttered bitterly. "And suddenly they surpass decades of effort in minutes."
The unfairness of it all gnawed at him.
"Sigh… why this world?" he groaned, staring at the sky. "Even One Piece or Fairy Tail would've been better."
The wind paused.
The world froze.
And then—
[Ding! Host detected!]
Ren's eyes widened.
A translucent blue screen flickered before him, invisible to everyone else.
{Do you accept system binding?}
{Yes / No}
{Note — If No is selected, the system will disappear permanently.}
Ren didn't hesitate even for a heartbeat.
"Yes."
He would rather gamble than remain powerless.
{0%}
{30%}
{60%}
{80%}
{99%}
{100%}
{System Binding Complete.}
A strange warmth surged through his small body, not painful but overwhelming. It felt like something ancient had latched onto his soul.
{Teacher System Bound.}
{Starter Pack Available.}
{Do you want to open?}
{Yes / No}
"Wait… a Teacher System?" Ren's lips twitched. "You couldn't give me something cool like a God System or a Bloodline System?"
The screen flickered impatiently.
"Yes."
{Congratulations! Starter Pack Opened.}
{1. Strong Body.}
{2. Rikugan (Six Eyes — Ninja World Version).}
Ren sucked in a sharp breath.
His vision sharpened instantly. The playground blurred and then refocused with terrifying clarity. He could see chakra threads faintly swirling around the children. The flow of energy inside trees. Even the subtle fluctuations in the air.
The Strong Body enhancement followed, reinforcing muscles, bones, and chakra coils silently. Not dramatic, not explosive—but foundational.
He trembled.
"This… this is broken," he whispered.
With this foundation alone, he could eventually stand at Six Paths level. Not immediately—but the path existed.
Before he could celebrate further—
(Ding! Finding a suitable target for student.)
Ren blinked. "Student?"
(Ding! Target Found —
1. Hinata Hyūga.
2. Ino Yamanaka.
3. Sakura Haruno.)
Ren's excitement froze.
His mouth twitched violently.
"You pervert system," he complained internally. "Why are all the candidates girls? Can't I teach boys like Lee?"
Silence.
Then—
(Notice — If the host does not teach the student properly, your chakra will be revoked. You will become a normal person.)
Ren's face darkened.
"Hey! You bastard system! What kind of nonsense is that?!"
The screen did not respond.
His small hands gripped the bench tightly.
"So you're threatening me now? If I fail as a teacher, I lose everything?"
No answer.
Ren exhaled slowly, forcing himself to calm down. Anger would not solve anything. He looked at the three options carefully.
Hinata Hyūga.
Ino Yamanaka.
Sakura Haruno.
At this age, they were all still children. But Ren knew their futures.
Ino and Sakura, at least early on, would be busy competing over a certain Uchiha prodigy. Their motivation wasn't entirely pure.
Hinata, however…
She was different.
Even as a child, she trained quietly. Endured silently. Desired strength not for attention, but to stop being called a failure.
"If I have to teach," Ren muttered, "I'll teach someone who actually wants to grow stronger."
His gaze hardened.
"Not kids who treat being a ninja like a playground game."
He selected—
1. Hinata Hyūga.
The moment he confirmed the choice, the system chimed softly.
{Target Locked — Hinata Hyūga.}
{Mission: Guide the student toward true strength.}
Ren stood up from the bench, small feet touching the dusty ground.
Three years old.
A civilian orphan.
Now bound to a system that would strip him of chakra if he failed.
He looked once more at the laughing children.
"You have no idea what's coming," he whispered quietly.
Then, with eyes far too sharp for his age, Ren began planning.
If this world worshipped bloodlines…
Then he would create a monster strong enough to shatter them.