Sign in for the Eternal Mangekyo Sharingan

At the farthest edge of the Uchiha Clan territory in Konohagakure stood a dilapidated little house, open to the wind on all sides with a damaged roof. It stood alone in a weed-choked clearing, completely out of place among the imposing clan buildings around it. This was young Lin Chen's only shelter in this world.

At this moment, the hut was cold and damp, with mottled bloodstains still on the floor. Lin Chen was curled up in a corner, his body covered in bruises of varying severity. The blood at the corner of his mouth had long since dried into a dark crust. His already frail body was now utterly lifeless, the faint rise and fall of his chest gradually ceasing as the life force belonging to the original owner completely dispersed.

The original owner was also named Lin Chen. He was an orphan of the Uchiha Clan, his parents having both perished during a mission, leaving him all alone. Without the clan's protection or the support of his bloodline, he could not even awaken the most basic three-tomoe Sharingan. He was regarded as trash and an abandoned child by the entire Uchiha Clan.

From childhood onward, the original Lin Chen had never stopped suffering abuse. The children of his clan beat and cursed him at will, the clan elders looked on coldly, and even the servants handling the clan's chores could berate him as they pleased, assigning him the hardest and most exhausting work. The slightest mistake would earn him a brutal beating.

Just moments ago, several branch-family Uchiha disciples had come looking for the original owner again out of boredom. Simply because he had not moved aside for them in time, they had surrounded and viciously beaten him. Frail and sickly, the original owner had no strength to resist and was ultimately beaten to death alive. The perpetrators left cursing, not even sparing him another glance.

When Lin Chen opened his eyes again, his gaze had completely changed. The original owner's cowardice and humility were gone, replaced first by confusion, then clear realization—he had transmigrated. He had transmigrated into the world of Naruto and become this most miserable abandoned Uchiha child.

In his previous life, Lin Chen had been a veteran Naruto fan. He knew the plot, characters, and conspiracies of Naruto like the back of his hand, and he had been unable to let go of countless regrets in the story. He had mourned Nohara Rin's tragic death, lamented the Uchiha Clan's destruction, hated Danzo's treachery, despised Black Zetsu's schemes, and resented the protagonists' humiliation and compromises even more.

But he had never imagined that he would transmigrate into such a cannon-fodder character, only to face a life-or-death crisis the moment he arrived. Agonizing pain surged through his body like a tide, making him suck in a sharp breath.

[Ding! A compatible soul has been detected. The Invincible Sign-in System has officially bound itself to the host!]

[Host: Lin Chen]

[Identity: Abandoned Uchiha child (both parents deceased, no clan resources, abandoned by the clan)]

[Current Status: Severely wounded and near death, multiple bone fractures, chakra exhausted]

[Newcomer benefit activated: The first sign-in is guaranteed to yield an ultimate reward. Sign in immediately?]

A cold mechanical voice suddenly rang out in Lin Chen's mind, instantly rousing his spirits as a fierce light burst from his eyes!

A system! The golden finger of a transmigrator!

Without the slightest hesitation, Lin Chen immediately replied in his heart, "Sign in immediately!"

[Ding! Sign-in successful!]

[Congratulations, Host! You have obtained the ultimate newcomer reward: Eternal Mangekyo Sharingan · Dual Kamui (complete form, no side effects)!]

[Congratulations, Host! You have obtained the physique reward: Perfect Divine Body (all injuries instantly healed, unlimited chakra, immune to conventional genjutsu and physical damage)!]

[Congratulations, Host! You have obtained the ability reward: Kamui: Absolute Control (no cooldown, no consumption, capable of intangibility, devouring, and space traversal), Sharingan: Never Goes Blind!]

Boom—!

A terrifying power capable of destroying heaven and earth erupted from Lin Chen's eyes in an instant, sweeping through his body like a volcanic eruption. His fractured bones healed immediately, while the bruises and wounds all over his body vanished at a visible rate. The agony disappeared completely, replaced by inexhaustible strength and endlessly abundant chakra.

Lin Chen slowly stood up. He subconsciously closed his eyes, and when he opened them again, a pair of incomparably scarlet eyes suddenly appeared.

Both eyes bore complete Kamui Mangekyo Sharingan patterns, intricate yet domineering. Within those crimson pupils flowed an eternal, undying light. There was not the slightest cloudiness, much less any danger of blindness—this was the Eternal Mangekyo Sharingan. There was no need to rely on transplanting a brother's eyes, no need to endure the pain of going blind. It existed eternally, with peerless combat power!

His left eye controlled spatial devouring, shredding, and sealing. His right eye controlled spatial traversal, intangibility, and teleportation. As the two pupils resonated, the power of space flowed freely around him. Lin Chen did not even need to deliberately activate it to clearly sense that the surrounding space was like an extension of his own arm, freely controlled, torn apart, and reshaped at will.

"So this is... the power of Eternal Dual Kamui?"

Lin Chen clenched his fists, feeling the limitless chakra within him and his absolute control over space. An indescribable excitement and icy killing intent surged through his heart.

The regrets of his previous life would all be made right in this one. The humiliation of his previous life would be completely swept away in this one. He would not spare a single person who had bullied him or schemed against the ninja world!

Bang!

At that moment, the rickety wooden door was violently kicked open with a loud crash. Three slightly older youths dressed in Uchiha clothing swaggered inside. The leader was a branch-family Uchiha disciple named Uchiha Shan. He usually loved bullying the original Lin Chen most and had been the mastermind behind this beating.

Uchiha Shan glanced at Lin Chen standing in the room. Seeing that he was completely unharmed, a trace of surprise appeared on his face before being replaced by contempt. He sneered, "Yo, trash, you're pretty tough. That beating didn't kill you? Looks like I went too easy on you!"

The two youths behind him burst into laughter as well, their eyes full of disdain. "Exactly! A piece of trash who can't even awaken the Sharingan is just wasting food by staying alive. He might as well die sooner!"

"Get out here and finish the firewood chopping and water-carrying work the clan assigned you. If you delay any longer, I'll break your other leg today!"

Uchiha Shan crossed his arms, looking utterly arrogant. In his eyes, Lin Chen would always be the useless trash he could manipulate at will. Even if he had not died from the earlier beating, he could not possibly cause any trouble.

Lin Chen raised his eyes, his icy gaze sweeping across the three of them. There was not a trace of emotion in his eyes, only bone-deep coldness. That gaze was like a sharp blade, making all three of them shudder instinctively.

"You were the ones who beat me just now?"

Lin Chen's voice was soft, yet it carried a chilling coldness that made Uchiha Shan and the other two, who had been so arrogant moments ago, feel an inexplicable fear.

Uchiha Shan forcibly suppressed his unease and shouted, "Trash, how dare you speak to me like that? Looks like you haven't been beaten enough!"

As he spoke, Uchiha Shan clenched his fist and viciously swung it at Lin Chen's face, the punch carrying a fierce gust of wind. His attack was ruthless, without the slightest restraint, intending to knock Lin Chen straight to the ground.

The other two youths watched with gloating expressions, waiting to see Lin Chen get beaten black and blue.

Lin Chen's expression remained indifferent. He did not even move his feet, merely raising his right hand slightly. His fingertips twitched as he calmly uttered a single word:

"Kamui."

In an instant, the space before Uchiha Shan silently twisted and folded violently. An invisible force of space immediately wrapped around his outstretched fist. Then came a faint, muffled sound. There was no splattering blood, no miserable scream—Uchiha Shan's entire right arm was directly swallowed by the power of space and vanished without a trace.

The arrogance on Uchiha Shan's face froze instantly. His fist stopped in midair, and he stood stunned for several seconds before finally feeling the piercing agony. He let out a heart-rending scream and crashed heavily to the ground, convulsing all over. His face turned pale as paper, and cold sweat instantly soaked through his clothes.

"Ah—my hand! My hand is gone!"

The two youths behind him were completely dumbfounded. Their smiles froze, their eyes filled with terror. They trembled uncontrollably, their legs giving out as they collapsed to the ground. Looking into Lin Chen's eyes was like looking upon a demon god from hell. They did not even dare breathe loudly.

"Y-you... what kind of monster are you...?"

Lin Chen slowly walked out of the hut, his cold gaze sweeping over the two figures sprawled on the ground. His voice held not a shred of warmth. Every word was like ice striking their hearts:

"From today onward, anyone in the Uchiha Clan or Konohagakure who dares provoke me, bully me, or insult me will end up like him—body and soul destroyed, never to be reborn."

After speaking, Lin Chen did not spare the three another glance. Under the terrified gazes of the two youths, he lightly stepped forward. The space around him instantly distorted, forming an invisible spatial rift. His figure directly entered the rift and vanished without a trace.

Only after Lin Chen had completely disappeared did the two youths sprawled on the ground dare to scream aloud. They scrambled away from the place, crawling and stumbling as they fled, repeatedly shouting "monster" in extreme terror.

Meanwhile, through spatial traversal, Lin Chen directly crossed a distance of a thousand miles, his destination set on the Kannabi Bridge Battlefield.

There, Nohara Rin was about to die tragically, Uchiha Obito was about to fall into darkness, Black Zetsu was plotting in secret, and Madara's conspiracy was quietly advancing.

In this life, with him here, every tragedy would be rewritten; every conspiracy would be crushed; every enemy would be put to death!

The abandoned Uchiha child of the past was reborn from this moment onward. His path to supremacy over the ninja world had officially begun!