The Land of Fire. Konohagakure.
The sun was sinking, casting long shadows across the village. Yet within the Uchiha compound, a strange, suffocating atmosphere lingered in the air.
Only two days ago, Uchiha Shisui—hailed as the Uchiha clan's strongest ninja, known to many as Shisui of the Shattered Mirror—had died under mysterious circumstances.
Now, atop the Hokage Tower, Sarutobi Hiruzen stood with his hands folded behind his back. Kneeling on one knee before him, clad in the uniform of the Anbu, was Uchiha Itachi.
"Have you made your decision, Itachi?" Hiruzen's back remained turned as he asked the question, his voice grave.
Itachi lowered his head, his tone steady yet filled with unshakable resolve.
"Yes. My last request… I believe you already know it."
Tonight, he would take upon himself the sin of slaughtering his own clan. The price of his crime would be the survival of his younger brother, Sasuke.
Hiruzen exhaled softly, then spoke with solemn weight.
"Do not worry. As long as I live, no harm will ever come to your brother."
"…My gratitude."
Leaving those words behind, Itachi placed the mask over his face and vanished into the night.
After he was gone, Hiruzen slowly raised his hand.
In the blink of an eye, two masked Anbu appeared. But unlike ordinary operatives, their identities were hidden even deeper—Sarutobi Shinnosuke, Hiruzen's eldest son, and his wife, the parents of Konohamaru.
"Prepare yourselves," Hiruzen ordered quietly.
The Uchiha purge was the village's darkest secret. Even the Anbu, directly under the Hokage's command, were not fully aware of it. Only Hiruzen's most trusted bloodline could be involved.
"Lord Hokage… do you mean for us to act as well?" asked Shinnosuke, his voice muffled behind a patterned mask.
Hiruzen hesitated only for a moment before replying, "If Itachi fails… you know what must be done."
He did not speak the words outright, but the meaning was unmistakable.
Though Hiruzen trusted Itachi's resolve, the Uchiha clan was vast. Even he could not rule out the chance that some might escape. Should that happen, either he or Shimura Danzō would have to intervene.
"Yes, sir!"
With that, the two Anbu disappeared into the darkness.
Night fell.
That evening, Uchiha Sasuke had been held back at the Academy by his instructor, Iruka, for additional training. Neither of them had the faintest idea of the hidden storm swirling behind the order.
Beneath the pale light of the full moon, Uchiha Itachi crouched atop a telephone pole within the clan compound. The scarlet glow of his three-tomoe Sharingan shimmered with an ominous brilliance before his form blurred and vanished into the night.
Beyond the borders of the compound, Hiruzen's hidden Anbu had already taken position, waiting to strike down any who might escape.
All of them were Sarutobi clan members—loyal to Hiruzen beyond doubt, sworn never to leak even a whisper. Even elites such as Hatake Kakashi were kept in the dark.
"It begins…"
Inside a humble hut within the Uchiha district, a young man of sixteen sat silently. He wore a black robe emblazoned with the Uchiha crest, his shoulder-length black hair framing a calm but sharp expression. At his waist rested a sword, which he was quietly polishing.
Then, a familiar voice rang in his mind:
[Template character: Aizen Sōsuke. Unlock rate: 10.64%]
This was Uchiha Kenya.
Publicly, he was known as the captain of the Uchiha Guard under Uchiha Fugaku's command. Though only sixteen, he had already reached the level of a Jōnin—considered a rare "elite" at his age. Yet when compared to prodigies like Shisui or Fugaku's eldest son, Itachi, he was overshadowed.
Still, Fugaku saw potential in him. Unlike Shisui, whose wavering loyalties irritated him, Kenya's fierce devotion to the Uchiha clan suited Fugaku's vision. Though not the brightest jewel of the clan, he was young, steady, and promising—an ideal candidate to support Itachi in the future.
But Fugaku knew nothing of the truth: this boy's soul had not belonged to this world for some time.
Three months earlier, Kenya had awakened to find himself transplanted into the world of Naruto—right at the brink of the Uchiha massacre. The despair he felt was indescribable.
Yet at that moment, his "cheat" awakened.
Template: Aizen Sōsuke.
Back in his previous life, Kenya had spent absurd amounts of money on a mobile game called 300 Heroes. He had gone to bed one night after another round of pulls—only to awaken here, with Aizen's abilities slowly unlocking within him.
For three months, he trained relentlessly within the system's inner world. And just days after Shisui's death, he finally reached his Zanpakutō's Shikai—Kyōka Suigetsu.
The progress was only 10%, but it was enough to wield the terrifying power of complete hypnosis.
Even so, Kenya was not foolish enough to think he could oppose all of Konoha. If he wanted to survive, he had only one option—escape.
Through his sharpened spiritual perception, he could feel the Uchiha's life force flickering out across the compound. Itachi had already begun.
"For the sake of peace… you bury your clan with your own hands. Is that truly your path, Itachi?" Kenya whispered, his tone heavy with conflicted emotion.
Unlike others, he had no deep ties to this world—his only family in his past life, his grandfather, had already passed away. But here, to survive, he had trained like a demon for three long months.
And now, confronted with Itachi's resolve, he could only shake his head in disbelief.
Blood filled the air. The scent of slaughter was everywhere.
Kenya stepped out of the clan district, only to find a squad of masked Anbu blocking his way. At their head stood Sarutobi Shinnosuke.
"Uchiha Kenya," Shinnosuke said coldly, "where are you going?"
Kenya's voice was calm, almost casual.
"I couldn't sleep. Thought I'd take a walk."
"No. Return at once," Shinnosuke commanded, his tone hard.
Kenya smirked faintly.
"What authority. Since when did Konoha shinobi need Anbu escorts just to take a stroll?"
Shinnosuke did not bother with further words. His father's orders were absolute. Every Uchiha—save for Itachi and Sasuke—was to die.
At his signal, the four masked operatives flanking him drew their blades.
But before they could strike—Kenya's sword was already in hand.
"Shatter… Kyōka Suigetsu."
His voice, calm and chilling, whispered like a phantom in their ears:
"Tell me… do you see my blade?"
In that instant, confusion clouded their eyes. When they swung their swords, the steel bit not into Kenya, but into one another.
Blood sprayed across the night.
And as Kenya lowered his weapon, a faint smile tugged at his lips.
The massacre of the Uchiha had begun—but this night would not end as the Hokage had planned.