Suddenly, Itachi's figure vanished from Sasuke's line of sight. Sasuke's heart tightened as he quickly scanned the area, but Itachi was nowhere to be seen.
Activating his Sharingan, Sasuke turned in every direction, trying to catch even a glimpse of his brother.
Then, out of nowhere, a wave of killing intent surged from behind him. Sasuke had no time to react—he dove forward on instinct alone.
"Tch!"
A kunai stabbed deep into his shoulder, and blood spurted out instantly.
Gritting his teeth, Sasuke endured the searing pain as he rolled to the side, finally spotting Itachi in the distance.
Itachi stood silently a few meters away, eyes cold and lifeless, staring at Sasuke without the slightest hint of emotion.
"So you're still not strong enough, little brother," he said, his tone flat and merciless, as if stating an obvious fact.
Sasuke yanked the kunai from his shoulder and clutched the wound, glaring at his brother with wide, furious eyes.
In that moment, Itachi's Sharingan flared—three tomoe spinning hypnotically. A genjutsu hit Sasuke like a lightning strike. His body froze, every muscle seemingly cut off from his will.
He stood there in a daze, powerless, as Itachi slowly walked toward him.
"Still too weak…"
Itachi reached Sasuke, extending his hand toward Sasuke's eyes.
Watching that hand draw closer, Sasuke was filled with terror and rage.
But just as Itachi's fingers were about to touch his eye, a surge of immense power erupted from within Sasuke's body.
From deep inside, his Sage organ thundered like a muffled explosion. In the blink of an eye, natural energy rushed toward him from all directions, drawn to him like a flood.
...
Hyuga Gakuya's eyes lit up.
"He finally used it in a real fight... the Ultimate Sage Mode—power beyond that of the ordinary Sage."
The Sage organ wasn't just some enhancement to ninjutsu. Gakuya had meticulously designed it for Sasuke, crafting it from the flesh of the White Snake Sage from Ryūchi Cave, cells from Hashirama, and Naruto's blood.
"Don't disappoint me now, Sasuke," Gakuya murmured.
...
Visible torrents of natural energy swirled toward Sasuke, wrapping around him. The wound on his shoulder began healing before his very eyes.
From his chest, pale white snakes burst forth—flesh-made constructs shaped like swords. They struck toward Itachi with vicious precision.
Using his enhanced ocular power from Sage Mode, Sasuke shattered the genjutsu with brute force alone.
Itachi leapt back immediately, grimacing. The backlash of the broken genjutsu caused intense pain to stab through his eyes, blurring his vision even further.
Sasuke tore the upper half of his shirt apart, revealing his transformation. Hardened serpent scales spread across his body. Horns grew from his head, and scaly wings unfurled from his back.
"I surpassed you a long time ago. I've become a Sage now!"
Itachi stared at Sasuke's grotesque new form, voice calm but curious.
"Is that Orochimaru's power?"
"I don't care whose power it is... so long as it can kill you!"
Sasuke roared, stomping hard against the ground. His wings shot open, and he rocketed forward like a cannonball, aiming straight for Itachi.
In a flash, he closed the distance and swung his Kusanagi blade toward Itachi's head with deadly force.
Itachi gritted through the pain, twisting his body to evade. His hands blurred into seals as he unleashed a Fire Style: Great Fireball Jutsu. A massive flame roared toward Sasuke.
But Sasuke remained calm. He opened his mouth and exhaled a fierce gust of wind that countered the flames, blowing them right back at Itachi.
Without pause, Sasuke launched a new flurry of attacks, slashing at Itachi again and again with his Kusanagi.
Itachi could only retreat and dodge. His movements were quick, but Sasuke's attacks grew faster with every strike. As his body adapted to Ultimate Sage Mode, his speed climbed even higher.
Now Sasuke was clearly faster than him. Even Itachi couldn't keep up with his movements.
Sasuke's sword strikes rained down like a storm, each one crackling with power. Despite all his skill, Itachi couldn't dodge them all—cuts and slashes began to accumulate across his body.
"Looks like you've really grown stronger… but it's still not enough!" Itachi's eyes briefly revealed a flicker of surprise before he forced himself back into composure.
He timed his moment and suddenly leapt backward, putting distance between them and refusing to engage Sasuke head-on.
At the same time, the tomoe in his eyes began spinning rapidly, merging into something far more ominous—a sinister Mangekyō pattern.
Itachi hesitated only for a second before activating his Mangekyō ability—Amaterasu.
Blood tears streamed from his eyes. In an instant, black flames erupted from Sasuke's body—dark, violent fire that seemed intent on consuming everything.
Caught off guard, Sasuke was struck full force. Pain like nothing he'd ever felt tore through him, driving him to his knees as he frantically tried to extinguish the flames.
But Amaterasu's fire clung to him like a curse, refusing to die out no matter how hard he struggled.
The flames blazed brighter, burning away the white phosphorus of his transformed skin. His hair curled from the heat, and the acrid smell of scorched flesh filled the air.
Sasuke's mouth opened unnaturally wide—and suddenly, a thick glob of mucus-like liquid spewed out. From within it, a slime-covered Sasuke slowly emerged.
All that remained at the original spot was a burnt and crumbling husk—just a skin suit left behind, still being devoured by Amaterasu.
The classic Orochimaru-style body substitution technique.
It consumed a vast amount of chakra, but it could heal severe injuries and dispel even the most persistent negative effects. One of Orochimaru's most iconic survival techniques, and one Gakuya had personally taught Sasuke to counter Amaterasu.
"Well done," Itachi said, blood dripping from the corner of his eye. "But what will you do next?"
He prepared to fire off another wave of Amaterasu.
Sasuke had experienced that searing, soul-ripping pain once before—he wasn't going to risk it again. He beat his massive wings and shot into the air like a blur.
Amaterasu instantly ignited the spot he had just vacated. The black flames pursued him, but Itachi's attacks kept missing their mark. Black fire scorched the room, climbing up the walls and setting them ablaze.
...
Watching from the shadows, Hyuga Gakuya slowly shook his head.
"He's holding back more and more... Amaterasu can burn through anything the Sharingan sees, and Sasuke's speed isn't enough to escape its gaze. Itachi's just teaching him—training him to understand the true potential of the Sharingan."
He sighed, his pride wounded.
His masterpiece—Sasuke—was being outshone by Itachi again.
But it didn't matter. Sasuke hadn't reached his final form yet.
In Gakuya's mind, the perfect state was: one Rinnegan implanted in the forehead, Eternal Mangekyō Sharingan in both eyes, combined with Ultimate Sage Mode and Wood Release.
Once that was complete, Sasuke would have power surpassing even Uchiha Obito.
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Pls Drop some Power Stones
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