Chapter 10: Who Am I, Where Am I, Where’s My Brother?

Fire Release: Great Fireball Technique.

Although this was the signature ninjutsu of the Uchiha clan, it was at best a C-rank technique.

Even in the hands of a genius like Itachi Uchiha, the diameter of the Great Fireball wouldn't exceed five meters.

However, when Haru casually unleashed his technique, he expanded the diameter of the fireball to over twenty meters.

If Haru hadn't pulled back at a critical moment, Sasuke would have likely sustained severe burns from this jutsu and ended up in the hospital.

Watching this unfold through the Telescope Technique, Hiruzen Sarutobi couldn't help but gasp.

From the speed at which Haru formed his hand seals, it appeared that he wasn't particularly skilled at this technique, and there were no signs that he had practiced it.

Haru seemed to mimic Sasuke's technique as if he were simply copying him after watching him use the Great Fireball.

It was worth noting that he wasn't the only one with such an enormous chakra reserve.

Naruto Uzumaki also had chakra levels far exceeding those of ordinary jōnin.

But he had no talent and couldn't even perform a decent Shadow Clone Technique.

"For a ninja, having a large amount of chakra isn't enough… The ability to master ninjutsu at a glance is what's truly terrifying."

Hiruzen's gaze sharpened as he watched Haru through the crystal ball, and another figure flashed through his mind.

The man known as the Copy Ninja.

Kakashi Hatake!

"Thanks to his Sharingan, Kakashi can instantly copy his opponent's ninjutsu and use it as his own. However, this fighting style is a burden on his chakra."

"And for Haru, while his copying speed may not match Kakashi's, he doesn't have that burden…"

Most importantly…

Haru could easily double the level of his opponent's ninjutsu.

That was the most frightening part.

It's no exaggeration to say that Haru had just used his chakra to elevate what should have been a C-rank technique, the Great Fireball, directly to at least B-rank level.

"Wait a minute…"

However, at that moment, Hiruzen considered a more terrifying possibility.

For Haru, this was merely a spar during training, not a battle with an enemy.

He only needed to show Sasuke the gap between them and force him to concede.

"Is he not using his full strength?"

Hiruzen couldn't help but gasp.

If Haru released his chakra without holding back, how large could the diameter of the Great Fireball become?

Thirty meters?

Fifty meters?

Or an even more exaggerated size?

The little brat from the Senju clan truly was terrifying...

"Speaking of which, how many chakra natures does he possess?"

Suddenly, Hiruzen's eyes widened in shock at his own speculation. "Senju Haru… could he possibly use Wood Release?"

Meanwhile, on the playground of the ninja school,

Seeing Sasuke sitting on the ground, looking shocked, Haru immediately canceled his technique.

Whoosh!

The Great Fireball dissipated in mid-air, leaving no trace behind.

Everyone was left dumbfounded, looking as if they had seen a ghost.

All along, they thought Sasuke's Great Fireball Technique was already impressive.

They never expected that Haru would be even more unreasonable.

'Is that even ninjutsu?'

Pfft! That's clearly sage arts!

Mizuki and Iruka, as Chūnin, understood better than anyone else the terror of Haru.

This could no longer be described as genius; it was more like a monster.

An unreasonable monster.

At that moment, Iruka forgot all about the mark of reconciliation, his face filled with shock.

Did Haru really need to be in the ninja school?

"Iruka-sensei, can we end this now?" Haru turned his head, completely unconcerned about Iruka's stunned expression, and casually said, "It seems Uchiha-kun doesn't want to continue."

Continue?

Still want to continue?

If I were Uchiha Sasuke, I'd be scared out of my mind right now!

Many students in Iruka's class looked at Sasuke with sympathetic eyes, unsure of how much psychological trauma this incident would cause him.

"Uh…" Iruka finally snapped back to reality after hearing Haru's voice. He glanced at the grade list and said hesitantly, "Ah... class dismissed. Practical training is over... Senju-kun, mark of reconciliation, Sasuke-kun mark of reconciliation."

"Mm." Haru replied smoothly, then walked up to Sasuke and extended his hand.

Sasuke looked at Haru and then at his hand, feeling completely blank in his mind.

However, Sasuke did not accept Haru's gesture of goodwill; instead, he tried to stand up using his own strength but failed.

It wasn't until his third attempt that he finally managed to get up from the ground.

But now, Sasuke was so stunned by Haru's Great Fireball that he couldn't make a sound.

He mechanically formed the mark of reconciliation and accepted it with Haru.

'Who am I? Where am I? What am I doing?'

'What just happened?'

'Where's my brother?'

Mizuki stared blankly at the scene before him. He thought he would feel jealousy toward Haru's talent after witnessing such an exaggerated Great Fireball.

But in reality, after witnessing everything, Mizuki felt a profound sense of doubt about his own life.

'Am I really a Chūnin?'

'Is Haru really just starting school today?'

'Is this world even real?'

'What is ninjutsu?'

'What is a ninja?'

"That's just... unbelievable." Iruka took a deep breath, unable to help but complain, "Senju-kun's Great Fireball is truly exaggerated. You wouldn't happen to have been practicing this technique at home for the past five years, would you?"

To Iruka, only under such circumstances could Haru's extraordinary Great Fireball be explained.

Unfortunately for Uchiha Sasuke, he had run into Haru's area of expertise.

No, only such a truth could comfort him.

But who would have thought that Haru would shake his head, "No, that was my first time using a ninjutsu."

"I just saw Uchiha-kun form the hand seals and thought I'd give it a try, and I didn't expect it to actually work."

"What?!"

Iruka and Mizuki's eyes widened again, feeling as if their brains were buzzing.

'What do you mean it was your first time using a ninjutsu?'

'Come on, explain to me, what does it mean to say it's your first time using a ninjutsu?'

'What do you mean you didn't expect it to actually work?'

'What kind of godly show-off is this?

However, Haru wasn't being modest; it truly was his first time using ninjutsu and also his first attempt.

"It seems that this is all due to the rewards from the recent sign-in."

Suddenly, Haru realized that the mastery he received from the sign-in was indeed significant.

With this kind of low-level ninjutsu, he could learn it just by taking a glance.

"Does this mean that for all ninjutsu in the future, as long as I take a look…"

Just as Haru grew curious about this, a notification sounded in his ear.

"Mastery" does not represent absolute perfection. Would you like to view the detailed explanation?

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So, how were those first chapters? I started with ten chapters to introduce the novel, and from now on, I will upload one chapter per day. Also, English isn't my native language, so please let me know when I make mistakes. Lastly, as I am translating this novel, I would like to change the name of the system so that it isn't always referred to as the 'Signing' or 'Sign-in' system. If you have any suggestions, I'm all ears!