Killer Uchiha

**[1 hour until the Uchiha Massacre begins]**

A full moon hung in the night sky, and its bright light cast a silver glow over the buildings and streets of Konoha, the Hidden Village of the Land of Fire.

In the Uchiha Clan's district, within the police department's prison, the scene was horrific.

On the rooftop, blood flowed like rivers, and the bodies of Uchiha police officers were scattered everywhere. Their eye sockets bled, all of them missing their Sharingan eyes.

In the middle of the pile of corpses stood a young man dressed in Uchiha police uniform. He had short black hair, a handsome face, and held a ninja sword, standing tall and straight.

**[Side Quest: Evolve Sharingan]**

**[Condition: Absorb the power of 50 pairs of Sharingan]**

**[Quest Complete]**

**[Reward: Yachigatana - Mangekyō Sharingan]**

Uchiha Kuroki gasped for breath. Suddenly, the three tomoe in his eyes began to spin, transforming into the sharp blade-like shape of the Mangekyō Sharingan.

His brain surged with chakra power, chaotic and wild, flooding into every nerve in his body like a violent waterfall, filling him with immense energy.

His eyeballs were bloodshot, and he panted heavily. It took only a dozen seconds for him to adapt to this destructive, overwhelming mental power.

His entire aura became dark and sinister.

Explanations of his new ability automatically appeared in his mind.

**Yachigatana:**

*"The Mangekyō Sharingan's chakra can plant a mark on others, either through eye contact or touch, no matter the distance. This mark allows you to control the target's mind and chakra at will!"*

Kuroki smiled, crouching down. 

He carefully placed the large number of Sharingan he had collected into a cylindrical liquid container.

The red, bloodshot eyes were packed densely together, all facing different directions against the glass wall, like some indescribable and eerie object.

Then, he sealed the container into a storage scroll.

In just one week after arriving in Konoha, with the help of the **system quests**, he finally obtained the "Mangekyō Sharingan," proof of his power in the ninja world!

Although the abilities of the Mangekyō were yet to be fully tested, he now had the qualifications to defect from Konoha.

At this moment, there was still one survivor in the corner.

Uchiha Takuo, covered in blood, leaned against the wall. With only his left eye—his last remaining three-tomoe Sharingan—he watched the scene in horror. Trembling, he yelled, "Uchiha Kuroki, as one of the captains of the police force, you murdered your own clan to awaken the Mangekyō. You won't meet a good end!!"

Kuroki, tucking the scroll into his robes and calculating the time, walked toward Takuo and squatted in front of him.

"The Uchiha patrol squad will arrive here in about one minute. I can chat with you for a bit, Takuo."

"You reported me for contacting S-ranked rogue ninjas and had me thrown into prison, then took over all my duties in the police force, finally coming here to provoke me. It must have been quite satisfying, right?"

Takuo trembled and kept his head down, saying nothing.

He had indeed come to the dungeon tonight, intending to use the Uchiha prison's torture devices to teach Kuroki a lesson—the man who had seemed gentle on the surface but was secretly in contact with rogue ninjas and now a prisoner.

As long as he didn't kill him outright, the clan leader, Fugaku, wouldn't punish him.

But when Kuroki saw him, he went berserk, activated his three-tomoe Sharingan, and slaughtered his way out of the dungeon.

With just one man and one blade, Kuroki had massacred the Uchiha guards stationed at the prison, like a demon unleashed.

Kuroki's strength exceeded Takuo's wildest imagination.

"You're mistaken," Kuroki said calmly after a moment. "I didn't kill them to awaken the Mangekyō. Normally, killing them wouldn't have been enough to awaken it."

He paused briefly, then chuckled.

"Oh, and by the way, the letters you intercepted regarding my contact with rogue ninjas—that was a trap I set on purpose."

Takuo's eyes widened in shock as he recalled all the details, piecing everything together. His face went pale.

"The guards in the prison tonight were your subordinates. The three patrol teams arriving shortly are led by Izumi, Naruki, and Tamao—this was the duty roster I arranged before I was imprisoned," Kuroki added, slowly standing up. 

"I knew full well that with your personality, you'd only come after me if the dungeon and its surroundings were filled with your people."

As they spoke on the rooftop, under the moonlit night, nine dark shadows leaped across the tightly packed rooftops, rushing toward them.

"What are you really after?" Takuo yelled with all his strength, trying to stall for time, waiting for reinforcements to arrive.

Kuroki withdrew his gaze from the nine figures in the distance and patted Takuo on the shoulder, as if bidding farewell to an old friend:

"To survive in the Shinobi world... Don't worry. I don't like being in debt to anyone. From now on, I am Uchiha. As long as I live, the Uchiha will continue to exist with dignity in the Shinobi world."

After finishing his words, Kuroki wasted no time. He sheathed his ninja sword on his back, walked to the edge of the rooftop, spread his arms, and, with his back to the ground, fell backward, leaving his final message:

"Takuo, open your three-tomoe Sharingan wide and witness what happens next in the Uchiha clan's domain!"

During the fall, Kuroki flipped in the air, landed steadily in a half-squat, then used the Body Flicker Technique, moving through the streets towards the forest surrounding the Shinobi village.

"To kill so many of your clan members, and still claim it's for the Uchiha... You won't escape. Clan Leader Fugaku and Itachi won't let you get away!"

Takuo, his heart deadened, weakly muttered with trembling lips.

Swish—

Nine ninja dressed in the Uchiha Police Force uniforms landed one after another beside Takuo.

Among them were both men and women. They scanned their surroundings, their scalps tingling as expressions of shock and confusion froze on their faces.

The bodies of their clan members lay scattered across the rooftop, the stairs, and the streets near the police station dungeon. The air was thick with the smell of blood.

Most of the bodies had died from a single clean strike to a vital point, with no unnecessary wounds.

For the first time, these nine witnessed such a brutal price paid in battle by the Uchiha.

Takuo widened his remaining three-tomoe Sharingan eye, recognizing the captains of the three patrol squads who had arrived. His heart sank completely.

Leading the teams were none other than Uchiha Izumi, Uchiha Naruki, and Uchiha Tamayo, just as Kuroki had mentioned.

"What... what exactly happened here?" Izumi's face turned pale as she stood motionless, overwhelmed, seemingly on the verge of collapse.

She had waist-length hair and beautiful large eyes. A tear mole marked the corner of her right eye, which now reflected disbelief and terror.

"It was Kuroki who did this," Takuo said weakly.

Izumi trembled all over.

Images of her squad captain, who had always been so gentle, cultured, and smiling, someone who felt like a spring breeze, flashed in her mind.

"No way... Captain Kuroki would never kill so many of his own clan!"

Uchiha Tamayo's forehead veins bulged as he grabbed Takuo's collar, pulling out his ninja sword and pressing it against Takuo's neck, growling angrily.

He had a babyface, but when he was angry, he resembled a wild beast ready to devour.

Takuo stared back coldly, silent for a moment.

Tamao, certain of himself, stated, "Even if Captain Kuroki killed those clan members, it was only to grant them release!"

"Heh... of course, spoken like someone Kuroki dragged out of the hospital's psych ward. If he killed your parents, would you defend him just the same?"

Takuo, his remaining three-tomoe Sharingan eye glaring at Tamao, bit back weakly.

"Captain Kuroki doesn't like killing people!"

Takuo: "???"

He had forgotten. Tamayo's parents were already dead.

Everyone else was momentarily stunned.

At that moment, a shadow darted toward Tamao, pushing him away from Takuo. It was Uchiha Naruki, wearing glasses.

"Idiot!!!" 

Tamao was about to lash out in anger but was stopped by Izumi.

Unlike Izumi and Tamao, Naruki wasn't one of Kuroki's subordinates.

"Enough!" Naruki turned to Takuo, asking, "Which way did Kuroki go?"

Takuo raised his hand and pointed toward the forest at the village's edge.

"After him!!"

Naruki's face darkened, but before he could move, Tamayo, filled with worry, had already led two of his squad members toward the forest using the Body Flicker Technique.

No matter what happened, as tonight's patrol team, they were responsible for tracking down the culprit.

Izumi and Naruki exchanged a glance, then hurriedly followed with their respective teams.

Takuo couldn't comprehend Kuroki's true intentions.

The others, filled with confusion, anger, and determination, rushed ahead. The nine figures darted through the moonlit forest.

Flap—

Frightened birds scattered through the woods. The nine leapt across tree branches, but suddenly, their hair stood on end, sensing a powerful danger ahead. They stopped, their faces serious as they held their breath and drew their ninja swords.

Moonlight pierced through the leaves, casting a glow on the ground.

A figure familiar to them all stepped forward from the shadows. Slowly lifting his head, he revealed his Mangekyou Sharingan, glowing like sharp blades.

"It's been a while, everyone. 

As for catching up...

Let's save that for later. For now, I ask for your help in testing the abilities of my Mangekyou Sharingan!"

Kuroki smirked as his Mangekyou Sharingan spun slowly in his eyes.

"Eight Thousand Spears!!"

(End of Chapter)