Naruto: Blade of the Sharingan

"Aaaah~" Zenitsu wore an expression of horrified terror. The shock of the "cuckolded by Old Wang" scenario was too intense, causing him to foam at the mouth and faint, looking as if he'd died with a grievance.

"Er, that might have been a bit too much~"

Uchiha Nagi scratched his head, looking at the foaming Zenitsu. He had no idea what terrifying thing the boy had seen to react so strongly. This genjutsu was designed to make the enemy see their deepest fears. What was Zenitsu most afraid of? Demons?

Oh well, one last one to go—

Uchiha Nagi scanned his surroundings. Genya was quite cautious; he had run into the forest to hide. Although his pride was a bit fragile, his combat awareness wasn't weak. Unlike the others, perhaps because he couldn't use Breathing Styles, he always thought thrice before acting when facing demons.

Seeing that his two training partners had been swept away by a massive wave of water, team cooperation was naturally out of the question. So, Genya quickly set up a trap using some vines, capable of ensnaring a person, then fired his gun into the air to attract Uchiha Nagi.

"Hm? Gunfire? Could it be a trap? This kid is interesting. He looks hot-tempered, but his intellect is actually online."

According to Uchiha Nagi's usual ninja modus operandi, he would definitely send a Shadow Clone to scout. However, since it was a Shadow Clone conducting this special training exercise with them, he decided to be a little lenient and walk right into the trap.

Thus, Uchiha Nagi, with his Sharingan activated, walked into the forest with an amused expression, curious to see what Genya was up to.

After entering the forest, a bound half-tree trunk first flew down from above. Uchiha Nagi dodged it with a leap, followed immediately by several gunshots that sealed off his surrounding positions in mid-air.

With the powerful dynamic vision of his Sharingan, Uchiha Nagi adjusted his body posture before the bullets hit him, successfully evading their trajectory, and finally landed steadily on the grass.

Before he could even speak, Genya charged at him, swinging his Nichirin Blade. The gun and blade stopped steadily at Nagi's head.

Genya's lips curved upwards in a smug grin. "I win—"

"Not bad~ A chain trap—" Uchiha Nagi clapped his hands. "But didn't I tell you to train with the intent to kill me? Look down at yourself~"

Shinazugawa Genya froze for a moment, then looked down. Space distorted, and he found himself hanging upside down from a tree. The sword and gun he had been holding were now reversed, held in Uchiha Nagi's hands.

"What's going on? I clearly..."

"You were careless. You looked at my eyes during your attack, so you fell into a genjutsu."

Uchiha Nagi sighed. Genya's tactic of using bullets to force him back and make him step into the trap that would hang him from the tree was actually very good. He had originally planned to use an Earth Style jutsu or something to block him, but Genya didn't have enough intel on him. Genya had looked at his eyes during the attack and fallen into the genjutsu. He didn't know what a Sharingan genjutsu was.

And so, Shinazugawa Genya fell for the genjutsu, staring blankly as he walked up to Uchiha Nagi, handed over his Nichirin Blade and gun, and then tied himself up.

"So, you still don't understand the meaning of this special training..." Uchiha Nagi said with a helpless expression.

Now, all three of them were sitting on the ground, dejected and tied to trees. Zenitsu hung his head, looking utterly crestfallen. He had been the most embarrassed just now, foaming at the mouth and fainting from the genjutsu. When he woke up, he saw Inosuke with only his head sticking out of the ground, which reminded him of "Old Wang's son," and he fainted from fright again.

Uchiha Nagi shook his head helplessly. It seemed Zenitsu's timid, dual personality would be very difficult to cure, unless a loved one was sacrificed to the heavens...

He looked up. The sun had already climbed to its zenith; it was noon.

"I'm going to eat. You all can stay here and reflect. By the way, there are only two lunch boxes. Whoever gets one is not allowed to share with others, or you won't train with me anymore—"

After speaking, Uchiha Nagi put down two bento boxes, slowly dispelled his Shadow Clone, and went to report to his main body.

Growl~

All three were hungry. Someone's stomach started rumbling first.

Genya was the first to untie himself and snatched a bento box.

"Damn it~ Aaaargh~" Inosuke, with his immense strength, also broke the ropes with brute force and fiercely grabbed the remaining bento box.

"Haha, this last one is mine! Mmm~ So delicious—"

Inosuke opened the bento box and immediately began to wolf down the food, burying his head in it.

Zenitsu, the last to break free from the ropes, had nothing to eat. He could only drool, looking pitifully at the other two. Growl~

Zenitsu's stomach rumbled again. He called out softly, "Inosuke..."

"Hmph?!" Inosuke, seeing Zenitsu's drooling mouth, protectively hugged his bento box and turned away.

Just as Zenitsu was looking pitiful, a voice came from the side.

"Here, I ate this morning. I'm not particularly hungry—" It was Shinazugawa Genya. He handed the bento box, from which he had only eaten a small portion, to Zenitsu.

"Genya~~~" Zenitsu was moved to tears, grasping Genya's hand. In that moment, Genya, with the ferocious scars on his face, seemed incredibly gentle in Zenitsu's perception.

"Let go, you crybaby sissy! Don't misunderstand. You helped me last time, so I'm helping you this time, that's all." Genya disgustedly pushed Zenitsu's hand away.

"Damn it! If you're giving, I'm giving too! I can't be looked down upon by you—" Seeing this, Inosuke also took out his half-eaten food and offered it to Zenitsu.

"You guys— You guys! Arigato! Wuuu~~"

"Bastard! Don't wipe your snot on me!"

"Enough, sissy~"

In the distance, Uchiha Nagi's main body had already finished lunch and was hiding in a large tree, secretly watching. Seeing this, he nodded. These kids are teachable.

"At least they've barely grasped the basics of teamwork..."

As for Tanjiro, Uchiha Nagi never worried. That fellow's disposition was as pure as white jade. He was the easiest to integrate into a team or even lead one.

Once they got used to this model, Uchiha Nagi planned to ask the Demon Slayer Corps' Master for leave. He wanted to return to the ninja world to obtain a few things...

Orochimaru's Edo Tensei—Uchiha Nagi had been coveting it for a long time. But to trade with him, he had to ensure he was strong enough not to be double-crossed. The Second Hokage's Edo Tensei 1.0 version was unstable and couldn't be reliably converted into an asset. It was only after Orochimaru upgraded it to version 2.0 that it truly took the stage. As for Kabuto's later 3.0 version, that was still many years away—