Uchiha Compound — Three Years Ago
The attic air was thick with dust, silence, and secrets. Old Uchiha scrolls lay piled like forgotten ghosts of a once-great clan.
Sasuke sat cross-legged, ink-stained brush in hand. His latest seal pulsed gently beneath chakra-reactive paper: a recalibration array for his gravity seal bracers. It would double the pressure output over time without risking muscle damage.
He was barely ten. But his body was training harder than most genin.
While the village saw a grieving orphan, Sasuke was building something far beyond expectation.
The Mangekyō's Awakening
When the Mangekyō Sharingan first opened, it burned.
It burned with loss, hatred, confusion, and power.
But with pain came clarity.
Meikyoku (冥局) — Mind's Partition.
Sasuke's Mangekyō let him analyze and break down any system — chakra networks, bloodline limits, genjutsu matrices, even fuinjutsu formulas — into raw informational threads.
It came at a price. When he first used it to analyze the Uchiha Kekkei Genkai and seek a way to reach the Eternal Mangekyō, he almost went blind. Blood ran from his eyes. His chakra was so drained, he collapsed for two days.
But he learned.
And that made it worth it.
Silent Growth — Age 10 to 12
Between the ages of ten and twelve, Sasuke underwent a transformation that would have stunned even the most elite shinobi.
With the scrolls in the Uchiha compound, he pushed his fuinjutsu skills to an intermediate level. His designs became precise, flexible, and personalized. His most notable creation: a dynamic gravity seal — which he fine-tuned daily, adapting it to his growing strength.
Physically, he pushed himself to the brink.
Gravity-enhanced training routines strengthened every muscle fiber.
Chakra-stimulated cell recovery accelerated muscle adaptation.
Taijutsu drills under strain refined his control and movement.
His chakra capacity, once limited by age, steadily grew. Through rigorous control exercises and seal-assisted chakra rotation circuits, he reached kage-level control and jonin level reserves by twelve. He even constructed storage seals into his gloves to assist in using items such as tantos, kunai, shuriken and he also made tens of thousands of explosive tags with the help of his clones.
Spiritually, he grew even more. Dual memories — one from his past life, the other from Sasuke's broken childhood — began to synthesize. The discipline of a former adult merged with the burning vengeance of a child.
It was the perfect storm.
Then came the moment of truth.
—
How He Evolved the Mangekyō to Eternal Mangekyō
After unlocking Mangekyō Sharingan, Sasuke realized the same fate awaited him as other Uchiha — eventual blindness.
But his ability, Meikyoku, let him see deeper.
Step by step:
Mangekyō Analysis
He studied the visual chakra signature of his own eyes, comparing active and dormant states.
He used his Mangekyō to observe the degradation patterns in ocular tissue and chakra output.
He read every scroll related to bloodline fusion, chakra memory, and visual resonance.
Genetic Chakra Resonance Theory
He discovered that the EMS process worked because transplanting a sibling's eyes created a near-perfect match in chakra resonance.
He asked: Could he artificially induce that harmony in himself?
Simulated Resonance and Chakra Layering
Using sealing formulas placed along his optic nerve and cerebral pathways, he built a secondary chakra imprint — a ghost signature overlaying his own.
Through yin chakra meditation and internal micro-seal adjustments, he slowly trained his body to accept the feedback loop required for EMS.
It was excruciating. His eyes bled. His chakra flickered dangerously low. His vision faded for days at a time.
Final Trigger
One night, staring into the full moon, he activated his Mangekyō and sustained it past its natural limit.
He flooded chakra into his seals, forced the secondary imprint to align with his visual core — and held it.
When the pain stopped, his vision was clear. Sharper than ever.
And his eyes had changed.
He had done it.
The Eternal Mangekyō Sharingan.
No blindness. No chakra collapse. Just evolution.
Graduation Day (Part 1)
The classroom buzzed.
Sasuke passed easily.
Sakura passed. Shikamaru too, despite grumbling through it. Ino and Kiba were neck-and-neck for throwing accuracy.
Naruto… failed.
His clone had no substance. No chakra control. His face was a perfect picture of crushed frustration.
Iruka's face softened, but rules were rules. "I'm sorry, Naruto. You didn't pass."
Naruto slumped in silence.
That Night — The Scroll of Seals
Sasuke didn't know the details until later.
That Mizuki — a traitorous chunin — manipulated Naruto into stealing the forbidden scroll. That Naruto trained all night, alone and exhausted, learning a high-level jutsu from scratch. That when Mizuki attacked, Naruto didn't run.
He protected Iruka.
And then… he unleashed hundreds of shadow clones.
The next morning, he stood proudly at the back of the classroom with a new Konoha forehead protector tied around his head.
Late. Bruised. Exhausted.
But grinning like an idiot.
"I'm here, believe it!"
Sasuke, sitting in his usual spot, gave him a long look.
"...Took you long enough."
Team Assignments
Iruka walked in with the clipboard.
"Now that everyone's here… it's time for team placements."
The room quieted instantly.
"Team 8: Kiba, Hinata, Shino."
"Team 10: Ino, Shikamaru, Choji."
"Team 7: Naruto Uzumaki, Sakura Haruno, Sasuke Uchiha."
Naruto shouted, "YES! Me and Sakura-chan!"
Sakura groaned, "Oh no. Me and Naruto?"
Sasuke stared at the ceiling, as if asking the heavens why me.
Iruka said, "Stay with your team. Your jonin instructors will arrive later to collect you."
Hours Later… Still Waiting
Kiba's team left first.
Then Team 10, laughing as Asuma lit a cigarette on the way out.
Team 7 waited.
And waited.
And waited.
Naruto had collapsed on the floor, dramatically fake-dying every ten minutes. Sakura was red with frustration. Sasuke sat perfectly still, analyzing the second hand on the wall clock like it had personally insulted him.
Finally…
Creeeak.
The door opened.
A silver-haired man walked in, mask over his mouth, one eye visible, nose buried in a book titled Make-Out Paradise.
"Yo."
Naruto sat up like a missile. "YOU'RE LATE!"
Kakashi gave an eye-smile. "A black cat crossed my path… so I had to take the long way around."
Sasuke narrowed his eyes. So this is him. The Copy Ninja.
Kakashi tilted his head. "Meet me on the roof. Introductions."
And disappeared in a puff of smoke.
Rooftop — First Impressions
They sat, spaced out on the edge of the rooftop. Wind whistled quietly.
"Let's start with you," Kakashi said, nodding to Naruto.
Naruto grinned. "Naruto Uzumaki! I love ramen, hate waiting, and I'm gonna be Hokage! Dattebayo!"
Kakashi muttered, "Energetic…"
Sakura sat up straight. "Sakura Haruno. I like books, dislike perverts and Naruto, and my dream is… well, it's a secret!"
She peeked at Sasuke and blushed.
Sasuke didn't react.
"Alright," Kakashi said, "your turn, broody one."
Sasuke's voice was calm. Cold.
"Sasuke Uchiha. I hate many things, don't particularly like anything. My goal is to become stronger than anyone, master every jutsu I can… and destroy a certain someone."
Kakashi's eye narrowed ever so slightly.
Vengeful. Focused. Controlled. Dangerous.
"Well," Kakashi said, standing up. "You three are… complicated."
Naruto blinked. "Wait, what does that mean?"
"It means tomorrow's going to be fun," Kakashi said with a wink. "We're doing a survival test."
Sakura blinked. "What?! Another exam?!"
"Of course. That academy test? That was just to separate who could walk straight from who could walk off a cliff."
Naruto looked like he was going to cry.
Kakashi added casually, "Don't eat breakfast. Or you'll throw it up."
He vanished again in smoke.
Naruto groaned. "WE'RE ALL GONNA DIE."
Sasuke stood up. "We'll see."
Uchiha Compound — That Night
Sasuke sat in lotus position, chakra circulating evenly through his tenketsu.
His Eternal Mangekyō Sharingan spun once in the moonlight.
Tomorrow, the real test began.
Not of jutsu.
Not of teamwork.
But of control.
And Sasuke — the real Sasuke — was done playing by the village's expectations.