Mangekyo Sharingan

Yet, the very next second, Uchiha Yatsuhashi had already injected the First Hokage Cells serum from the scroll into his own body.

"Swish—!"

A violent surge of First Hokage chakra, like a bursting dam, instantly overwhelmed every meridian in his body.

Karatachi Yagura sensed the abnormality within Uchiha Yatsuhashi.

He slid backward several meters in a flash, putting distance between himself and Uchiha Yatsuhashi.

He was no stranger to this sudden, massive eruption of chakra.

Karatachi Yagura had once witnessed it in the ninjas from Iwagakure.

It was an extreme form of ninjutsu used to perish together with the enemy.

Only this time, he had not expected his judgment to be wrong.

Uchiha Yatsuhashi felt the First Hokage chakra tearing his body apart continuously.

That incredibly domineering chakra, brimming with vitality, caused the bones throughout his body to emit groans of unbearable strain.

Furthermore, wooden patterns began to manifest beneath his skin once more.

It felt as if the massive chakra within him would spiral out of control the next second, causing towering trees to sprout from his entire body.

"Argh!"

Amidst the excruciating pain, Uchiha Yatsuhashi let out a roar.

"Eight Inner Gates: Space Gate, open!"

Veins bulged on Uchiha Yatsuhashi's forehead as a powerful aura erupted from his body.

And this was not the end.

Enduring the agony, Uchiha Yatsuhashi attempted to channel the wild, masterless chakra within him to forcibly strike the remaining life gates.

In an instant, a series of low, thunderous explosions echoed from within his body.

"Eight Inner Gates: Gate of Healing, open!"

"Eight Inner Gates: Gate of Life, open!"

"Eight Inner Gates: Gate of Pain, open!!!"

Like a high-pressure water pump, the First Hokage chakra instantly blasted open the first three life gates of the Eight Inner Gates.

It even vaguely showed signs of pushing toward the fifth gate, the Gate of Limit.

Fortunately, most of the First Hokage chakra was channeled and consumed by Uchiha Yatsuhashi in the process of forcing open the first three gates.

That was the only reason there was no energy left to breach the fifth gate of the Eight Inner Gates.

Otherwise, given Uchiha Yatsuhashi's current physical state, his body would likely have collapsed on the spot.

"Pfft!"

Even so, Uchiha Yatsuhashi still spat out a mouthful of blood.

His skin also began to crack over a large area.

This was the price of forcibly opening the Eight Inner Gates.

Indeed, the Eight Inner Gates were meant for "hardworking geniuses," not for "reckless gamblers" like him.

Without the corresponding physical strength, rashly striking the life gates was undoubtedly suicide.

"Water Style: Iron Gun!"

Seeing that he was not self-destructing, a cold glint flashed in Karatachi Yagura's eyes.

A high-pressure water sphere tore through the air, hurtling straight toward Yatsuhashi's face.

However, bolstered by the opening of four gates of the Eight Inner Gates, Uchiha Yatsuhashi's speed had been elevated to a height he had never reached before.

This allowed him to easily dodge Karatachi Yagura's attack.

"Hmm?"

The surprise in Karatachi Yagura's eyes deepened.

How had this genin's speed suddenly increased so much?

"Such strange chakra..."

Karatachi Yagura's hands moved in a rapid blur of seals again.

"Then try this! Water Style: Great Waterfall!"

Instantly, a massive wave with immense impact force extended outward, centered on him.

In the blink of an eye, it crashed toward Uchiha Yatsuhashi.

The range of the wave was so vast that Uchiha Yatsuhashi could not evade it.

With a deafening "Boom!"

Uchiha Yatsuhashi was slammed violently into the seawater by the giant wolf.

The sound of shattering bones was instantly audible.

Yet, eerily, those horrific wounds on his body were healing at a speed visible to the naked eye.

This was thanks to the terrifying vitality of the Hashirama Cells.

While they were destroying his body's meridians, they were also frantically healing his flesh.

"Not done yet?"

Karatachi Yagura felt a flicker of irritation.

He had originally treated this as a game of cat and mouse, but now he discovered that the mouse before him was like a cockroach, impossible to kill no matter how hard he struck.

Seeing this, Karatachi Yagura drew a sharp breath, preparing to unleash a lethal move.

He intended to release the Water Style: Water Severing Wave, capable of cutting through anything.

However, before he could even form the hand seals, Uchiha Yatsuhashi had already surged forward, launching a heavy punch directly at him.

Although Karatachi Yagura raised his arms to block in time, he was still sent sliding several meters across the water by the sheer force.

Uchiha Yatsuhashi continued to press the advantage with taijutsu, denying Karatachi Yagura any chance to form seals.

The two engaged in a fierce taijutsu duel upon the surface of the sea.

"Bang! Bang! Bang!"

Karatachi Yagura grew increasingly alarmed; the genin who previously possessed only a faint trace of chakra

was now able to contend with him head-on for dozens of rounds without defeat, relying solely on raw strength and speed.

It must be known that Karatachi Yagura had subconsciously underestimated Uchiha Yatsuhashi due to his status as a genin.

Furthermore, because he intended to keep them alive to seal them, he had not been using his full power.

That was how Uchiha Yatsuhashi had seized the opportunity to knock him back.

But at this moment, Karatachi Yagura was fighting with everything he had.

Yet the Uchiha Yatsuhashi opposite him was still able to tangle with him to this extent.

This once again dealt him a significant shock.

After the next violent collision, the two figures sprang apart.

Karatachi Yagura looked at his opponent, who was bathed in blood yet possessed eyes that remained resolute, and for the first time, he asked with a serious expression, "Genin! Tell me your name."

"Uchiha... Obito."

Uchiha Yatsuhashi replied, gasping for air.

"Good! Uchiha Obito, I retract my previous words.

With your temperament and this level of power, you will surely become an excellent ninja in the future."

He paused, his voice suddenly turning cold, "It is a pity, you will not have the chance."

Because Karatachi Yagura would never tolerate the future emergence of a powerful ninja from Konoha.

At this moment, he cast aside the playful mindset he had held until now.

"Water Style: Water Mirror Technique"

A massive water mirror appeared out of thin air.

From the surface of the mirror stepped a water clone identical to Uchiha Yatsuhashi.

"Bang!"

In the blink of an eye, the two closed the distance, their fists and feet colliding in a rapid-fire sequence.

What shocked Uchiha Yatsuhashi was that this water clone not only matched his appearance, but its speed and strength were also on par with his own.

Immediately following this, Karatachi Yagura, not far away, began continuously releasing "Water Style: Iron Gun".

High-pressure water spheres bombarded Uchiha Yatsuhashi like a barrage of cannon fire.

Meanwhile, the water clone held him fast, preventing him from dodging.

In the end, Yatsuhashi's left shoulder was shattered by a water sphere, and his right ribs were kicked through on the spot, his body tumbling across the water like a ragdoll.

"Die, Uchiha Obito."

Karatachi Yagura said coldly, "To have fought me to this point is enough for you to be proud."

With that, he prepared to deliver the final blow to Uchiha Yatsuhashi.

Yet, the crushing pressure of death at this moment pushed the thirst for power deep within Uchiha Yatsuhashi to its absolute peak.

The recent string of high-intensity battles had long since forced Uchiha Yatsuhashi to begin merging with the First Hokage Cells within his body.

Just as his spirit stretched to its breaking point, a surge of unprecedented, unique chakra erupted from Uchiha Yatsuhashi's brain.

As a trickle of blood flowed slowly from the corner of his eye, his originally pitch-black irises turned a deep, vivid red.

Three crimson tomoe still swirled slowly within them.

Immediately after, the tomoe began to twist and deform, finally locking into a strange, intricate pattern.

This was the Mangekyo Sharingan, unique to the Uchiha clan!

Amidst the Hashirama Cells and this desperate, life-or-death struggle, Uchiha Yatsuhashi finally glimpsed the true essence of this ultimate ocular jutsu.

"These eyes..."

Karatachi Yagura ceased his assault, staring fixedly at those eerie eyes. "Impossible! You are just a genin, how could this be!"

"Ha! Ha! Ha! Ha!"

Uchiha Yatsuhashi threw his head back and laughed maniacally, "Hahahahahahahaha..."

Those Mangekyo Sharingan, radiating a chilling aura, were now fixed steadily upon Karatachi Yagura before him.

"Now, let me turn the tide of this battle."