In short, he completely enraged Uchiha Yuto.
What he couldn't tolerate most was anyone insulting his father.
Nobody will do!
He did it right in front of him! Even if the King of Heaven himself came, he would personally kill this bastard today.
Blue-white Electric Current surged, and stimulated by the Lightning Release technique, Yuto instantly unleashed his ultimate speed.
Uchiha Style: Sword Leaps with Thunder!
"You scum, today I'll make you die from my father's ultimate technique."
The Kusanagi Sword is already sharp, and combined with the high-frequency vibrations of Lightning Release, it can easily cut through most defenses.
Seeing the enemy attempt to resist head-on, Yuto sneered inwardly, as if he had already foreseen the scene of his opponent being cut in two by a single sword strike.
Consumed by rage, he seemed to have forgotten that the Black Robe man was no ordinary weakling, capable of defeating his companion with formidable Genjutsu abilities in such a short time.
Bite!
The clash of weapons and the crisp sound of their impact finally jolted him out of his rage.
The attack, which Certain Victory, was actually blocked by the enemy, who was also a master of lightning.
"I see." A sinister smile appeared on Yuuto's lips, Yuto eyes narrowed, and his Mangekyō fixed intently on the enemy's every move.
His fearless forward thrusts broke through the safest distance, leading to close-quarters combat where he could easily pierce his opponent with a flick of his wrist.
This simple action clearly demonstrates his strong confidence in his own abilities.
"Interesting, so this is your Mangekyō?" A hoarse voice rang out, and it wasn't hard to tell that the man in the Black Robe was deliberately concealing his voice.
Yuto didn't bother with this at all; he had already subdued the enemy, and there were no secrets left in the face of the Sharingan's Genjutsu.
With his Lightning Release Chakra unleashed to its maximum potential, Yuto's sword strikes grew ever faster, interspersed with attacks such as the Chidori Sharp Spear.
Even someone as powerful as the man in the Black Robe had no choice but to retreat at this moment.
"This guy's actions..." Uchiha Yuto frowned, a barely perceptible look of horror flashing in his eyes.
He discovered that he couldn't gain the upper hand in Taijutsu combat.
In terms of speed alone, the man in Black Robe seemed to be about the same as him. The main problem that prevented him from breaking through was the opponent's terrifying combat experience.
To some extent, it even smoothed out the gaps granted by the Sharingan.
This made Yuto realize one thing: the faces behind the enemy masks were definitely among the few older generation ninjas in the Shinobi World.
Perhaps it's an old monster hidden by the Ninja Sect.
Once this was clear, the dazzling lightning instantly transformed into Purple Electricity.
With his powerful Chakra manipulation, he managed to gather all of it onto the blade of the Kusanagi Sword.
The Mangekyō in his left eye lit up slightly, and then Yuto threw the weapon.
What's going on...? The Black Robe was puzzled; how come all the weapons were lost during the fight?
He knew who was opposite him and was clear about the person's abilities.
Such abnormal behavior can only mean that there must be something fishy going on.
He slightly turned to dodge the oncoming purple light, but unexpectedly it deflected in mid-air and followed him straight toward his heart.
In an instant, the Black Robe increased his speed to the limit, but the Kusanagi Sword remained pressed tightly against his chest, as if it would pierce his heart in the next second.
Anyone else would have fallen to Yuto's Dojutsu by now. Without unparalleled speed in the Shinobi World and the keen observation of the Eternal Eye, there would be no possibility of dodging a second time.
"What kind of Dojutsu is this?"
"Manipulation of iron tools, possession by mind?"
"This kid has really gotten stronger."
The sickle-shaped pattern quickly coalesced, forming rings of purple light in his pupils.
Shinra Tensei!
A surge of Repulsive Force was unleashed, instantly deflecting the Kusanagi Sword that was about to strike.
Seeing this, Kyosuke breathed a slight sigh of relief. If his son had stabbed him, where would he, as the father, put his face in the future?
That's right, the Black Robe man who defeated Kurama Jun and then harassed Yuto while disguised as an enemy was none other than Uchiha Kyosuke.
He had hoped to reunite with his son after a long separation, but halfway there he had a sudden idea: to conceal his identity and test the boy's abilities.
His Taijutsu and Ninjutsu were passable, but his reaction time in battle was somewhat lacking. Only his Sharingan Dojutsu surprised Kyosuke.
Of course, it was only to a very slight degree.
Even without the Rinnegan, he had countless ways to break this move; Kyosuke simply chose the quickest and least revealing option.
"It's still a long way off."
As a father, I have a responsibility to help my son grow up.
Today he's going to prove with facts that you're not qualified to stand on the highest stage.
"That's it?" The man in Black Robe spoke calmly, but the contempt in his voice was easily discernible.
Now, Yuto was even more convinced that the other party was a powerful Ninja Sect member.
"You bastard of the Ninja Sect Clan, today I will tear you to pieces!"
A golden-brown light shot into the sky, and the Perfect Susanoo, the size of a mountain, descended into the world.
It must be admitted that at this moment, Yuto does indeed possess the ability to deal with most powerful enemies.
At least he won't be worse than Madara and Hashirama from the late Warring States Period in the original work.
"It's all thanks to my superior bloodline, otherwise how could you have such good fortune?" Kyosuke attributed most of the credit to himself.
However, his son is also exceptionally outstanding, which makes him quite gratified.
That being said, Kyosuke will show no mercy in this blow.
Those scum of the Ninja Sect, if they really encounter a hidden powerhouse, their mere Mid-Super Kage combat strength is simply not enough.
Wow, you've even learned Senjutsu?
That would be at most the peak of the intermediate level, and its power wouldn't even reach the level of the Super Kage Advanced Tier.
The Super Kage Advanced Tier is basically equivalent to Madara Uchiha's "Majestic Attire: Susanoo".
Simple Senjutsu Chakra is not even comparable to the power boost from the entire Nine-Tails.
With Susanoo, Nine-Tails, and Senjutsu, Madara Uchiha at that time truly stood at the pinnacle of the Super Kage level.
Even without the Great Buddha, Hashirama would have been defeated by Madara.
Yuto is still quite a ways off from that level, though he's certainly good enough to dominate the Shinobi World, provided he doesn't encounter any truly monstrous powerhouses.
Unfortunately, standing before him was the strongest old monster in the Shinobi World.
"What, aren't you going to use Wood Release to fight?" From within the Diamond-Shaped Crystal on his forehead, Uchiha Yuto stood with his hands on his hips, his eyes filled with disdain. "Or are you saying you don't even know Wood Release?"
You little rascal, you've certainly mastered the art of mocking your enemies.
But now I finally understand why my precious granddaughter always puts her hands on her hips; she learned it from you.
Fueled by anger at the way he had corrupted the chubby boy, Kyosuke secretly decided to raise the level of punishment slightly.
Let this brat know what the wrath of his grandfather is like.
Before Susanoo act, Kyosuke slightly increased the force of his footsteps, and a large-scale collapse suddenly occurred in the ground within a radius of several meters.
Somewhat alarmed, Yuto immediately used his Dojutsu to forcibly Reversal Cause and Effect, ensuring that Susanoo's sword accurately struck the enemy.
What happened next shocked him greatly.
A strike powerful enough to shatter mountains and split the earth was actually met head-on by the enemy.
Even though the intense impact of the sword caused a large area of Forest behind him to collapse, the man in the air remained completely still.
To his astonishment, Yuto finally realized that the enemy actually had the ability to float directly in the air.
Aside from that little dwarf from the Land of Earth, it seems that only that terrifying group of people can fly without any external assistance.
"Could it be..."
The moment a thought crossed his mind, Yuto saw the Black Robe appear at the same height as him.
Without using any techniques, Kyosuke simply charged up a flying kick, instantly shattering the diamond-shaped crystal defense and accurately striking the brat in the chest.
Like a cannonball, it crashed straight into the ground from a height of 100 meters.
The powerful impact caused Yuto to carve a long chasm in the ground before finally coming to a stop by crashing headfirst into a boulder.
Such a severe blow would be difficult even for Sage Body to withstand.
Wiping the blood from the corner of his mouth, a resolute glint flashed in Yuto's eyes, and his right Mangekyō gradually glowed with an eerie red light.
Kyosuke, slowly descending from the sky, was further suppressing his son's potential, to see just how far this kid could ultimately go.
Unexpectedly, a terrifying pressure that required him to take seriously slowly descended upon this battlefield.
The source of its power was Uchiha Yuto stood silently with his head bowed in the distance.
"This kid has some hidden tricks up his sleeve?" At first, Kyosuke wanted to see what was going on, but he quickly realized that something was wrong.
His expression changed slightly, and he activated the Rinnegan eye technique, instantly jumping through the timeline so that the attack "one second into the future" would take effect immediately.
Yuto was still preparing to fight desperately when he suddenly felt a sharp pain in his neck and collapsed to the ground unconscious.
"Phew~ I almost caused a huge disaster." Kyosuke breathed a sigh of relief, but at the same time felt a little guilty for some reason.
If my wife and daughter found out that I had seriously injured my son, they probably wouldn't give me a good look.
"No, the fault doesn't lie with me."
"It's all because this kid is useless. He's always thinking about fighting to the death. If he can't win, can't he at least think about running away?"
"Yes, that's right, that's exactly it."
Picking up the unconscious Yuto and the nearly waking Kurama Jun in the distance, Kyosuke opened Space Passage and went directly to the Secret Experimental Base prepared by Yayoi.
"Ahem, time to get to work."
Meeting Yayoi's indifferent gaze, Kyosuke felt a rare sense of embarrassment.
Soon after, Yuto and Kurama Jun awoke one after the other.
When he saw Aunt Yayoi by his bedside, he was still a little confused, which meant that she had come from afar to save him.
However, when the two turned around and saw Kyosuke peeling an apple, their jaws nearly dropped to the ground.
"T-Teacher?!" Kurama Jun was stunned; he even thought he was hallucinating.
Wait a minute, aren't I an expert in Genjutsu?
Yuto, however, quickly calmed down and even deduced that the Black Robe was actually his father in disguise.
Otherwise, looking at the entire Shinobi World, who could deny themselves even a final chance?
"... Damn old man," Yuto said through gritted teeth, "Welcome home."