As an Uchiha I became the Jinchuriki of Senju Tobirama

Just as Ikkaku was secretly regretting that he had arrived too late to stop Obito's attack and that it would cause Kazuki to be seriously injured...

A hurricane of water, more than ten meters high, instantly swallowed the fireball, and instantly submerged Obito with unstoppable force!

"Water Release: Water Colliding Wave, this is a move I like very much. It is a Water Release developed by the Second Hokage..." Kazuki smiled and looked at Obito who was struggling in the turbulent water, and slowly closed his palms.

Then, the shape of the water whirlpool changed, contracting into a compact sphere, like a water prison that trapped Obito inside.

Inside the water prison, streams of water formed chains that stretched Obito's limbs from different angles, leaving him in an X-shaped position.

Obito's eyes were full of disbelief, struggling violently, and spitting bubbles from his mouth, but it was useless.

The combination of the water prison and the water chains was not something he could resist while already trapped.

In such a shameful posture, Obito saw Rin from the corner of his eye while struggling, and she seemed to be standing not far from him.

He couldn't allow Rin to see this ridiculous posture!

Obito struggled harder and harder...

But his efforts were in vain, the water prison remained intact, and his limbs became increasingly weaker as the oxygen in his body decreased…

Kazuki slowly walked in front of him, smiled and looked at him. "Well done, Obito."

"You're fighting very well."

These words of encouragement surprisingly sounded like a mockery...

Obito, his eyes filled with fury, continued to fight stubbornly, despite being on the verge of drowning. His resistance was becoming weaker and weaker.

The scene was deadly quiet.

Ikkaku and Kakashi both widened their eyes, unable to believe what they saw...

Of the two Uchiha, one looked like an idiot and the other, smiling silently, showed unexpected ferocity when the time came to fight.

"Hatake Chunin, that move looks like the Water Colliding Wave, right?" Ikkaku did not stop the game. As long as Obito has not admitted defeat, it is not over. And he didn't think that Kazuki would hurt Obito without measure.

"I think so, but the changes behind it have the shadow of the Water Prison Technique, and the Water Chain is a change in the nature of the water attribute chakra."

Kakashi felt like his mind was about to explode. Although he was already a Chunin-ranked ninja and a genius, he had never seen anything like this.

"Also, this Water Release was used in a waterless environment, but judging by the scale…"

Kakashi was explaining to Ikkaku, but also analyzing for himself. "In short, with just this amount of chakra and the mastery of Water Release, Uchiha Kazuki has at least the ability of a Special Jonin…"

"Why has this guy been in the ninja school?"

Kakashi felt a strange discomfort in his chest.

He graduated at the age of six, was the genius who captured the attention of the entire village, and although Kakashi had never mentioned it, he was filled with incredible arrogance.

As the son of Hatake Sakumo, Kakashi didn't think there were any shinobi of his generation who were on his level, even if Kazuki was four years older than him…

He thought he had surpassed his peers and was on his way to becoming a Jonin.

However, it seemed that Kazuki had already reached that level and had not bothered to show his strength, remaining in the academy in silence.

This made Kakashi feel an inexplicable shame and caused him to look curious and spark a rivalry towards Kazuki.

"Don't you surrender yet? Uchiha Obito, if you continue like this, you will die..." Kazuki looked up at Obito who was struggling in the water prison, and said softly: "Nod three times, and I'll let you out."

Obito, struggling to resist the feeling of suffocation and the pain in his lungs, bowed his head sharply. His Sharingan spun frantically.

Kazuki looked him straight in the eyes.

"This is bad!" Ikkaku keenly caught this detail and frowned. "I was still careless, Kazuki-kun..."

Obito's smile turned fierce, and his genjutsu covered Kazuki instantly.

But it was different from what he expected. Kazuki still stood there with a smile, his eyes remained clear. "Uchiha Obito, although I don't have a Sharingan, I have a firm belief, that is the will of fire..."

"Your genjutsu can't affect my heart."

As soon as these words came out, the entire place went into an uproar, and everyone looked at Kazuki in disbelief.

The boring lesson on the Will of Fire, which seemed so useless, had actually strengthened his resistance to genjutsu? Is this the golden content of elder brother?! If so, this will of fire really needs to be studied well in the future?

...

In the Hokage Residence, Sarutobi Hiruzen lit a pipe and exhaled a long puff of smoke happily.

Danzo always said that his materials on the Will of Fire were only mediocre. But here was a child who understood them, and he was an Uchiha to boot!

Hiruzen was more and more satisfied and ordered in a deep voice: "I want all the information about Uchiha Kazuki, quickly!"

...

Obito stared at Kazuki blankly. He didn't understand why his Sharingan couldn't trap Kazuki in his genjutsu…

The reason was simple: Kazuki's ocular power was superior to his own.

Shisui's mouth twitched. He knew the secret, since Kazuki had told him that he had the two-tomoe Sharingan…

Tobirama couldn't hold it anymore: "Kazuki brat, aren't you harming these children? The will of fire can resist genjutsu? I have never heard of it!"

"Even if you have a firm mind, if you do not cleanse the chakra in your body in time, this firmness will only cause the genjutsu to breed paranoia in your heart, and you will be immersed in the genjutsu and unable to break out of it."

"No, Tobirama, are you really the Second Hokage? Are you trying to destroy the foundations of my Konoha?" Kazuki admired the despair on Obito's face and criticized the white-haired man without the will of fire: "You see? After my words, who among my companions has not felt admiration for the Will of Fire? Besides, isn't that how I resisted his genjutsu, thanks to the Will of Fire? Where is the problem?"

"You can resist genjutsu, isn't it because of your damn Sharingan?" Tobirama's expression was a little broken.

"Oh, if you hadn't told me, I would have forgotten that I also have a Sharingan. I just remember the unbreakable will of fire in my heart..."

[From the target Senju Tobirama, you get Ninjutsu: Mystical Palm Technique!]

'Bah… It's okay, it's better than nothing.' Kazuki clapped his hands, freeing Obito from the water prison. "Come out, before you die of suffocation."

The instant he broke free, Obito pulled out a kunai and stabbed it violently towards Kazuki's neck.

Kazuki's figure flashed, and the Essence of Physical Techniques against the Uchiha Clan from Senju Tobirama, and the dynamic vision brought by his Sharingan, made Obito's sneak attack look as childish and ridiculous.

"Let me go, let me go!" Obito roared.

Kazuki caught Obito's neck with his arm, lifting him like an iron vice, blocking the arteries in his neck.

Kazuki held Obito like this, slowly turning him around to show him to the audience…

Just opposite him, Obito, whose mind was gradually becoming confused, saw Rin just a few meters away from him and frowned at him.

"Rin..." Obito called softly, and the next moment he fainted completely. After Kazuki let go, he fainted on the ground like a puddle of mud.

[From the target Uchiha Obito, you get the talent: Space Affinity (Obito version)!]

"Ikkaku-sensei, I'm sorry, I didn't control the degree of Water Release just now and broke the box for drawing lots..." Kazuki turned his head and smiled apologetically at Umino Ikkaku.

After experiencing Obito's defiant attitude, Ikkaku felt somewhat flattered by Kazuki's politeness. He waved his hands repeatedly. "Don't worry, Kazuki-kun, your strength doesn't need to be proven in the third match."

"Ikkaku-sensei, rules are rules, I still have to accept the third match." Kazuki rejected Ikkaku's kindness, turned his head to look at the classmates who looked at him with admiration, and said softly: "Are there any classmates who want to spar with me?"

Almost everyone fell silent; who would dare challenge someone who could defeat an Uchiha with the Sharingan awakened?

"Kazuki-kun, my companion on the path of youth, let me challenge you!"

Might Guy burst into tears, stepped out of the crowd, and clenched his fists. "Kazuki-kun, this is your burning youth!"

"Please forgive me for previously thinking that you had lost faith in becoming a ninja… It turns out that you have been working silently, honing your skills until you reached this level, and yet you have been so modest…"

"And I was lost in fleeting achievements, even thinking of graduating early this year… But you have remained in ninja school for five years and have even managed to resist the Sharingan genjutsu with your youth!"

"Please do your best, Kazuki-kun! Let me feel the taste of your youth through your power and conviction!"

Might Guy's expression was a real sight. There was excitement, regret, excitement, and embarrassment…