Sasuke's Mangekyō Sharingan blazed in the settling dust — the six-pointed stars spinning at a frantic, almost desperate velocity, their crimson glow cutting through the haze like twin lanterns in a storm. His gaze was fixed on Itachi with the unblinking intensity of a predator that had spotted both danger and opportunity in the same instant.
Because Sasuke knew what Itachi was carrying.
Not just his own Mangekyō. Not just the blood-soaked ANBU blade or the shattered remnants of his crimson Susano'o. Somewhere on his person — sealed in a scroll, tucked into a hidden pocket, pressed against his body like a treasure more precious than his own life — Itachi carried an eye that did not belong to him.
Shisui's eye.
The remaining Mangekyō Sharingan of Uchiha Shisui — the man once hailed as "Shisui of the Body Flicker," the strongest genjutsu user the Uchiha had ever produced. And within that eye resided the most terrifying dōjutsu technique in existence: Kotoamatsukami — the ability to implant commands directly into a target's subconscious, rewriting their will and beliefs without their knowledge. The ultimate genjutsu. Undetectable. Irresistible. Absolute.
Even with the super-brain processor running at full capacity, even with Vector Manipulation's ability to redirect physical vectors, Sasuke wasn't certain he could defend against Kotoamatsukami. The technique didn't operate on physical vectors — it operated on the mind itself, on the architecture of thought and will. It bypassed every conventional defense because the target never even realized they were being controlled. There was no killing intent to sense, no chakra fluctuation to detect, no visual cue to trigger a reflexive response.
If Itachi used Kotoamatsukami on him right now — while Sasuke was exhausted, bleeding, his super-brain running on fumes — it could be over. Sasuke might find himself suddenly and completely loyal to the Hidden Leaf, his rage extinguished, his memories of tonight recontextualized into whatever narrative Itachi chose to implant. He would never know it had happened. He would believe the new reality with absolute conviction.
I can't let him use that eye, Sasuke thought, his super-brain running threat assessments even as blood continued to stream from his own Mangekyō. And more importantly — I need to take it from him.
Across the devastated compound, Itachi struggled to remain standing. His body was a ruin — fractured ribs, torn muscles, chakra reserves scraped to the very bottom of the barrel, blood flowing from his eyes in thick, continuous streams. The Susano'o had collapsed entirely, its crimson light fading into wisps of dissolving chakra that drifted away on the smoke-laden breeze. He was running on willpower alone, and even that was beginning to fracture.
But his mind — that brilliant, agonized, impossibly disciplined mind — was still working. Still calculating. Still following the plan, or what remained of it.
"Sasuke," Itachi spoke, and despite everything — despite the blood, despite the pain, despite the fact that his seven-year-old brother had just beaten him within inches of death — his voice carried the measured calm of a man who had not yet played his final card. "The explosive power you displayed just now... that must be the ability of your Mangekyō. The Mangekyō Sharingan is the eye of the soul — it manifests the deepest emotions of its wielder. Your rage, your grief, your desire for revenge... they've given birth to something extraordinary."
He paused. His Sharingan — reverted to the base three-tomoe form, unable to sustain the Mangekyō any longer — fixed on Sasuke with an expression that was heartbreakingly complicated. Love. Guilt. Sorrow. Fear. All of it layered beneath a mask of forced indifference so thin it was nearly transparent.
"But you're still too young," Itachi continued, his voice softening despite his best efforts. "Your mind isn't ready. Your body can't sustain this power. If you continue down this path, it will destroy you long before you ever achieve your revenge." A beat. "Let me help you, Sasuke. Let me take this burden—"
From behind his back, Itachi produced a small glass container. Inside it, suspended in preservation fluid, floated a single eye — dark-irised, unremarkable to the naked gaze, but pulsing faintly with a residual chakra that Sasuke's Mangekyō could read like neon lettering against a black sky.
Shisui's Mangekyō Sharingan. Kotoamatsukami.
"I want you to be forever loyal to—"
"Shut up."
Sasuke's voice cut through Itachi's words like a blade through silk — cold, flat, utterly devoid of the childish emotion that should have accompanied it. It was the voice of Accelerator. The voice of a man who had killed ten thousand clones in the pursuit of strength and had learned, in the process, that sentiment was a weapon wielded by the weak against the strong.
"Stupid Itachi." Sasuke rose to his feet. His body trembled. Blood dripped from his chin in a steady crimson rain. But his eyes — those terrible, spinning, six-pointed eyes — were locked on the glass container in Itachi's hand with a focus that bordered on obsession. "You really are willing to do anything for this so-called village of yours, aren't you? Kill your parents. Slaughter your clan. And now — brainwash your own little brother."
The words hit Itachi like a physical blow. His jaw tightened. His fingers trembled around the container.
"How far are you willing to go, Nii-san?" Sasuke continued, and the mocking use of the honorific was more cutting than any insult. "How much of yourself are you willing to destroy for a village that would burn your entire family to ashes and call it peacekeeping?"
Itachi said nothing. There was nothing to say. Every word Sasuke spoke was the truth, and the truth was a knife that twisted in wounds that would never heal.
But Sasuke had already stopped listening to his brother's words. His attention was elsewhere — focused inward, on a sensation he had been tracking for the past several minutes with growing interest.
Deep within his body — far beneath the screaming muscles and the depleted chakra coils and the overheating super-brain — something was stirring. A warmth. A presence. An ancient, vast reservoir of power that did not belong to Sasuke Uchiha, or to the Accelerator, but to something far older than either of them.
Indra's chakra.
Sasuke was the reincarnation of Indra Ōtsutsuki — the elder son of the Sage of Six Paths, the progenitor of the Uchiha bloodline, the original wielder of the Sharingan's power. That cosmic inheritance resided within him as a dormant seed, planted in his soul before birth, waiting for the right conditions to germinate.
Tonight's trauma — the massacre, the awakening, the repeated activation of the Mangekyō, the sustained output of Susano'o and Vector Manipulation — had cracked the shell of that seed. Indra's chakra was beginning to leak through the fissures, seeping into Sasuke's depleted reserves like water filling a dried riverbed.
The super-brain detected it immediately. The processor shifted computational resources, analyzing the incoming energy signature, mapping its properties, searching for a way to integrate it into the existing framework without destabilizing Sasuke's already overtaxed system. The calculations were complex — Indra's chakra was fundamentally different from ordinary chakra, denser and more potent, carrying within it the echoes of a will that had burned for millennia — but the super-brain was designed to solve impossible equations.
Slowly, carefully, the processor began extracting Indra's awakening chakra in measured quantities — threading it through Sasuke's depleted coils, using it to replenish what had been spent, balancing the ancient energy against the modern architecture of the super-brain's computational framework.
The effect was immediate.
The burning agony behind Sasuke's eyes began to ease. Not disappear — the Mangekyō's strain was still immense — but the sharp, sawing pain dulled to a deep, manageable throb. His muscles, which had been trembling on the verge of total collapse, steadied. His vision, which had been blurring at the edges, sharpened. The super-brain's operating temperature dropped by several degrees as the additional chakra provided fresh computational fuel.
A smile spread across Sasuke's face.
Not a grin. Not the savage, blood-streaked rictus of earlier. This was something worse — something calm, controlled, satisfied. The smile of a chess player who had just realized he was three moves from checkmate.
Thank you, Indra, Sasuke thought. Your timing is impeccable.
He raised both hands, palms open, fingers spread wide.
The air around them was still thick with dust and particulate matter — the residual debris from the repeated Susano'o impacts, suspended in the atmosphere like a fog made of pulverized stone. Trillions of microscopic particles floated in every direction, coating every surface, filling every cubic meter of air for hundreds of meters in every direction.
Each one of those particles was a physical object. Each one possessed vectors — kinetic energy, thermal energy, potential energy. Each one was in contact with the air, which was in contact with Sasuke's skin.
And anything that touched Sasuke's skin could be controlled.
The super-brain performed the calculation in a fraction of a microsecond. The Mangekyō served as computational auxiliary, its pattern-recognition capabilities mapping the vector distributions of every particle within the operational radius. The equations resolved. The parameters locked in.
Sasuke clapped his hands together.
The sound was soft — barely audible over the distant crackle of fires and the groaning of damaged structures. A child clapping his hands in a cloud of dust.
What followed was not soft at all.
"Art is an explosion," Sasuke whispered, and grinned.
Every particle of dust in the air — every microscopic fragment of stone, every mote of pulverized earth, every grain of powdered wood — had its kinetic and thermal vectors instantaneously reversed and amplified. The scattered, drifting particles were transformed in a single microsecond from harmless atmospheric debris into high-velocity projectiles carrying superheated energy payloads. Trillions of them. All at once. In every direction.
The result was, in the most literal and devastating sense of the word, an explosion.
BOOM.
Not a localized detonation — a spherical one. A omnidirectional blast that expanded outward from Sasuke's position in a perfect sphere of superheated kinetic force, igniting the air itself as the compressed thermal vectors raised the ambient temperature past the flash point of every combustible material within the radius. The dust didn't just burn — it detonated, each particle becoming a micro-explosive that triggered the ones adjacent to it in a cascading chain reaction that turned the entire atmosphere of the Uchiha compound into a single, colossal incendiary device.
The sky turned white.
The sound was beyond hearing — a wall of compressed air that ruptured eardrums and shattered thought. The light was beyond sight — a searing, retina-burning flash that painted the undersides of clouds in orange and white and turned the night, for one terrible instant, into the brightest noon.
Inside the remnants of his crimson Susano'o, Itachi had no time to react.
The skeletal construct — already weakened, already flickering, already running on the last fumes of his exhausted chakra — was the only thing between him and total annihilation. He poured everything he had left into it — every scrap of chakra, every drop of Mangekyō power, every ounce of willpower — and the crimson bones flared bright for one desperate instant, forming a protective shell around his battered body.
It wasn't enough.
The explosion struck the Susano'o like a tsunami striking a sandcastle. The spectral bones cracked, fractured, and disintegrated in layers — each one buying Itachi a fraction of a second, absorbing a fraction of the incoming energy before being overwhelmed and stripped away. The heat was immense, even through the construct's defense. His skin blistered. His hair singed. The air inside the Susano'o turned scalding, and every breath felt like inhaling fire.
"SASUKE!!!" Itachi screamed — not in anger, not in the cold, calculated tone of his role, but in raw, unfiltered terror for his little brother's life. For one horrifying moment, the mask slipped entirely, and the boy behind the monster was visible — a thirteen-year-old child who loved his brother more than anything in the world and had just watched him detonate himself in the center of a blast that could level a city block.
The Susano'o held. Barely. By the time the blast wave passed, the construct was nothing but a faint crimson shimmer around Itachi's body — the thinnest possible membrane of spectral energy, smoking and cracking, one breath away from total collapse.
But it had held.
Itachi was alive.
Obito was not so fortunate.
The masked man had been standing on a rooftop beam at the edge of the blast radius when the detonation hit. Kamui required a conscious activation — a deliberate act of will to shift his body into the dimensional pocket. The explosion had come too fast. Too suddenly. The chain reaction had propagated across the entire dust cloud in a fraction of a second, giving him no time to process, no time to activate, no time to even think the word "Kamui" before the superheated shockwave engulfed him.
His body was torn apart. Incinerated. Scattered.
Somewhere, beneath his sleeve, another Sharingan blinked closed — Izanagi activating automatically, the eye sacrificing itself to rewrite death into a dream. Obito would reform somewhere beyond the blast radius, whole and intact, one more spare eye spent.
But the lesson had been delivered.
The explosion burned for a full fifteen minutes.
The entire Uchiha compound — already devastated by the massacre and the subsequent battles — was engulfed in a firestorm that reduced what remained of the buildings to charred skeletons of blackened timber and melted stone. The fires climbed high enough to be visible from every quarter of Konohagakure, painting the sky above the district in lurid shades of orange and crimson.
Beyond the compound walls, the shockwave was felt as a blast of hot air and a roar of distant thunder. Windows cracked in residential buildings three blocks away. Civilians stumbled from their beds, clutching children and calling to neighbors, staring toward the column of fire and smoke rising above the Uchiha district with expressions ranging from confusion to terror.
"Where's that earthquake coming from?"
"An explosion like that — has the village been invaded?"
"It's coming from the Uchiha district. Do you think... did the Uchiha finally rebel?"
The rumors had already been sown — months of carefully orchestrated whisper campaigns by the village leadership, subtle insinuations that the Uchiha clan harbored treasonous intent, that they couldn't be trusted, that their Sharingan made them inherently dangerous. The groundwork had been laid so thoroughly that the first instinct of many civilians was not sympathy but suspicion.
The Uchiha brought this on themselves.
It was exactly the reaction the architects of the massacre had intended.
In the Hokage's office, at the center of Konohagakure, Hiruzen Sarutobi stood alone.
The Third Hokage had been unable to sleep tonight. A restless, gnawing anxiety had kept him at his desk long past midnight, his pipe unlit, his eyes staring at nothing, a formless dread pressing against the edges of his awareness like a storm front approaching on the horizon. His eyelids wouldn't stop twitching. His pulse raced for no discernible reason.
Something was wrong. He could feel it in his bones — the instinct of a shinobi who had fought in three wars and survived the Nine-Tails attack telling him, with urgent, wordless certainty, that something terrible was happening.
Could it be the Nine-Tails? The thought surfaced with a jolt of ice-cold alarm. Has something happened to Naruto?
He turned to the crystal ball on his desk — the Telescope Technique, channeled through the orb, allowing him to observe any point within the village. His weathered hands formed the seal, and the sphere's surface shimmered, resolving into an image of a small, cluttered apartment.
Naruto Uzumaki — seven years old, blond-haired, whisker-marked, alone in the world — lay sleeping soundly in his bed, curled on his side, one arm dangling off the mattress. The boy's face was peaceful. A thin line of drool traced from the corner of his mouth to the pillow.
Hiruzen exhaled slowly. A fraction of the tension left his shoulders.
Not Naruto. Then what—
"Uchiha?" he murmured to himself, the word forming before the thought had fully crystallized.
As if summoned by the name, a knock sounded at the door.
"Enter," Hiruzen called, tapping the bowl of his pipe against the edge of the desk — a habitual gesture, grounding, something to do with his hands while the world fell apart.
The door opened. An ANBU operative entered — purple hair spilling from beneath a stylized animal mask, moving with the rigid precision of someone delivering news they wished they didn't have.
The operative dropped to one knee.
"Lord Hokage." The voice was taut. Professional. But beneath the discipline, Hiruzen could hear the faintest tremor of genuine alarm. "There has been a critical development in the Uchiha compound. The operation has encountered... complications. Uchiha Itachi has failed to complete his mission as planned."
Hiruzen rose from his chair. For one instant — one brief, naked instant — something raw crossed the old man's face. Shock. Grief. The weight of a decision that he had never stopped doubting, that had kept him awake more nights than he could count, that had aged him more in the past year than the entirety of the Third Shinobi World War.
Then the mask came down. The Hokage — not the man, but the office — settled over his features like armor.
"Unexpected," he said, his voice steady. "But not entirely unforeseen. The Mangekyō Sharingan is a power beyond prediction. We could never guarantee that Itachi would be the only Uchiha to awaken those eyes."
He moved to the coat rack beside his desk, where the white and red ceremonial robes of the Hokage hung in readiness. He shrugged them on with the practiced efficiency of a man who had worn them for decades. The kanji for "Third Hokage" blazed across the back in bold crimson lettering.
"Prepare a full response team," Hiruzen ordered, his voice hardening. "I'm going myself."
When the fires finally subsided and the smoke began to thin, the Uchiha compound was unrecognizable.
What had once been a thriving residential district — hundreds of traditional houses arranged along tree-lined streets, bearing the fan-shaped crest of the Uchiha above their doors — was now a wasteland of craters, rubble, and charred earth. The fires had consumed everything combustible and left behind a landscape that looked more like a battlefield from the Warring States era than a neighborhood in the heart of a hidden village.
At the center of the devastation, Uchiha Itachi lay face-down in the ash.
His Susano'o was gone — completely, utterly gone, dissolved without a trace. His body was a catalog of injuries: fractured ribs, burns across his arms and back, eyes hemorrhaging from sustained Mangekyō use, chakra reserves so depleted that his body had begun cannibalizing its own cellular energy to keep his organs functioning. Blood pooled beneath his face, spreading slowly across the blackened ground.
He coughed — a wet, tearing sound — and more blood sprayed from his lips.
His mind was... foggy. Disjointed. The kind of cognitive fog that came from severe concussion overlaid with extreme chakra exhaustion overlaid with the psychological whiplash of having every carefully constructed plan demolished in a single evening.
In my imagination, some distant, fading part of his consciousness murmured, Sasuke should be running right now. Screaming. Crying. Fleeing into the night, terrified of his monstrous older brother. I was supposed to use Tsukuyomi to scar him into unconsciousness. I was supposed to become his nightmare — the villain that drove him to grow strong enough to kill me.
That was the plan.
The plan was good.
But somewhere along the way... our positions reversed.
Sasuke became the nightmare.
And I'm the one lying on the ground.
The bitter irony of it almost made him laugh. Almost. What came out instead was another mouthful of blood.
And then — footsteps.
Light. Measured. Unhurried. The footsteps of someone walking through a field of ruin with the casual ease of a person strolling through a garden.
Click. Click. Click.
They stopped beside Itachi's head.
Sasuke stood over his brother, looking down at him with those spinning, blood-streaked Mangekyō eyes. The boy's body was in terrible condition — trembling, bleeding from the eyes, his skin pale from exertion, his clothes scorched and tattered — but he was standing. His posture was straight. His expression was calm.
And in the dim crimson glow of his Mangekyō, Itachi could see the glass container that had been knocked from his hand during the explosion. It lay on the ground between them, cracked but intact, the precious eye still floating within its preservation fluid.
Shisui's Mangekyō. Kotoamatsukami.
Sasuke looked at it. Then he looked down at Itachi.
And smiled.
"Nice eyes," Sasuke said, his voice soft and conversational, almost gentle. "Kotoamatsukami — the power to rewrite a person's will without them ever knowing. Quite a gift your dear friend Shisui left you." He tilted his head, the Mangekyō's six-pointed stars reflecting the dying firelight. "You were going to use it on me, weren't you, Nii-san? 'Be forever loyal to the Hidden Leaf.' Something like that?"
Itachi's bloody lips parted, but no sound came out.
"I think I'll keep this," Sasuke said.
He bent down — slowly, deliberately, his movements precise despite his exhaustion — and picked up the cracked container. He held it up to the light, examining Shisui's eye through the preservation fluid with the clinical interest of a collector appraising a rare specimen.
Then he tucked it into his shirt, alongside the scroll containing his father's sealed Mangekyō.
Two sets of Mangekyō Sharingan. Fugaku's and Shisui's. Both now in Sasuke's possession.
Sasuke looked down at Itachi.
And then beyond him — to the approaching chakra signatures, to the village that had ordered his family's death, to the world that had yet to learn what he was capable of.
Then there was a sound — a small, sharp crack of something breaking — followed by horrible, roaring pain.