Sharingan

"Shisui, if you don't get serious..."

"The glory of the Uchiha Clan will be tarnished by your hands today."

While pressing forward against the Shisui in front of him, Yu spoke to provoke him, hoping to draw out Shisui's full strength.

"In that case... then I won't hold back!"

"The glory of the Uchiha Clan shall not be defiled!"

Hearing Yu bring up the Uchiha Clan, the expression on Shisui's face finally turned serious.

Whoosh!

As the words fell, Yu felt a flash before his eyes.

He saw a figure identical to Shisui dart out from behind him and leap high into the air.

Shadow Clone Technique!!

So fast! When did he weave the hand signs?!

Seeing Shisui's incredible Shadow Clone Technique, even Yu couldn't help but feel a jolt of astonishment; he hadn't noticed when Shisui had performed the signs at all.

"Watch out, Yu."

"Fire Release: Great Fireball Technique!!"

The Shisui suspended in mid-air didn't forget to warn Yu, his hands moving with blinding speed to weave the signs.

He took a deep breath, preparing to unleash a massive, scorching fireball down at Yu.

"Fire Release, huh..."

With his hands occupied by the shadow clone in front of him and the real Shisui about to unleash a Fire Release jutsu from above, Yu's calm expression remained unchanged; instead, the corners of his mouth curled up in a mysterious smile.

"Still too slow... Shisui."

Could it be?!

Noticing the strange smile on Yu's face, Shisui, who was about to release his jutsu, felt his heart skip a beat.

"Zzzzt..."

But it was too late. Accompanied by the sound of violent electrical discharge, Yu suddenly threw his hands open, and a surge of wild electricity erupted from his entire body.

Both Shisui and his shadow clone felt a sharp, numbing pain throughout their bodies, rendering them unable to move.

Lightning Release: Chidori Current!!

By releasing Chidori-level electricity from his entire body, he sacrificed the raw destructive power of the Chidori for a wide-range attack that paralyzed his opponents, serving as both offense and defense.

After a year of training, Yu had finally mastered this shape transformation derived from the Chidori.

"An astonishing jutsu!"

Watching Yu unleash the Chidori Current, the eyes beneath the Third Hokage's hat were filled with wonder.

"To have mastered this level of nature and shape transformation at only six years old..."

"This kid is truly a prodigy!!"

Pop! Pop!

Before anyone could recover from the brilliance of Yu's Lightning Release, two soft popping sounds echoed through the air.

The two Shisuis that Yu had struck with the Chidori Current turned into puffs of white smoke and vanished!

What... they were both shadow clones?!

Seeing this sudden turn of events, everyone was stunned, and even Yu was taken aback.

"I never imagined your Lightning Release had such a variation..."

"If I hadn't kept an ace up my sleeve, I think I would have lost just now, wouldn't I?"

Hearing the familiar voice from behind, Yu instinctively spun around, only to see Shisui's swift, powerful kick looming large before him.

"Bang!!"

Caught off guard, Yu reacted quickly, dropping his hands to block.

However, faced with the sheer force of Shisui's kick, Yu couldn't stop his momentum and was sent flying into the air.

Swish!!

After kicking Yu into the air, Shisui's assault didn't stop; he vanished from his spot in an instant.

"This is... the Body Flicker Technique?!"

Witnessing the terrifying speed Shisui displayed on the Training Ground, not only the surrounding crowd but even the Third Hokage couldn't help but feel surprised.

The Body Flicker Technique is a collective term for all "high-speed movement techniques," including high-speed taijutsu, elemental jutsu, and space-time ninjutsu.

Although it is not a high-level jutsu, the ability to use it so fluidly in combat requires a skill level of at least a Chunin.

"The Body Flicker Technique, is it..."

"He truly lives up to the name of the future 'Body Flicker Shisui'..."

Suspended in mid-air, facing the rapidly shifting figures of Shisui and the heavy blows erupting from all sides, Yu couldn't help but marvel inwardly.

To be able to use the Body Flicker Technique with such proficiency at this age—it was no wonder that Shisui would eventually become world-renowned for it and earn the title 'Body Flicker Shisui'.

"Wait... his eyes?!"

Yu used his elbow to block another heavy strike unleashed by Shisui's Body Flicker Technique.

But as he caught sight of Shisui's eyes, the expression on Yu's face became indescribably vivid.

"Sharingan?!"

It turned out that at some point, Shisui's originally black eyes had transformed into a deep, blood-red hue.

A single black tomoe was imprinted on each eye, refracting an eerie, supernatural glow.

"Sharingan! It's actually the Sharingan!!"

Not only Yu, but the Third Hokage standing nearby also noticed the change in Shisui's eyes, and a look of utter disbelief washed over his aged face.

"He awakened the Sharingan at only six years old?!"

"Are you kidding me?!"

Seeing the transformation in Shisui's eyes, Yu felt as if ten thousand horses were stampeding through his heart.

One had to know that even the great Itachi only awakened his Sharingan at eight years old, yet Shisui had done it at six. How could Yu not be shocked?

The Sharingan—the very bloodline limit that the Uchiha Clan relied upon to shake the ninja world.

It had clear levels: the single-tomoe Sharingan possessed dynamic vision far exceeding ordinary eyes, capable of seeing through high-speed taijutsu; the two-tomoe Sharingan could copy most ninjutsu and taijutsu; the three-tomoe Sharingan could predict an opponent's movements in advance and cast genjutsu through eye contact.

Beyond these standard levels, Yu knew that above the three-tomoe Sharingan lay the powerful Mangekyo Sharingan and the Eternal Mangekyo Sharingan, and even the final evolution into the eyes of the Sage of Six Paths—the Rinnegan.

This was also the reason why, when Yu had first transmigrated, he regretted not being born into the Uchiha Clan.

Because whether for support or combat, the Sharingan, with its various heaven-defying abilities, was the premier cheat code in the Naruto World.

"It's over, Yu."

"From the moment I opened these eyes..."

"Your movements have all been seen through by me!!"

Ignoring the shock of everyone present, Shisui widened his blood-red, eerie eyes, his gaze locked firmly onto Yu below.

"Flash Slice!!"

The moment Yu's body touched the ground, Shisui, still in mid-air, instantly drew the Kodachi from his back that he had never unsheathed before.

Activating the Body Flicker Technique, he transformed into a streak of light, delivering a fierce, incomparable slash from above!

Although it was only a single-tomoe Sharingan, it was enough for Shisui to perceive more movements, with his insight and agility greatly enhanced.