Tobirama vs Uchiha non-canon or..?

The sun dipped below the horizon, casting a fiery glow across the Valley of End. The serenity of the setting belied the tension in the air as two figures faced each other—Tobirama Senju and Sasuke Uchiha.

"Your path is filled with darkness, Sasuke," Tobirama said, his voice firm. "You don't have to follow Madara. You can still choose a different way."

Sasuke's gaze was cold, the darkness of loss and betrayal igniting the Sharingan in his eyes. "You don't understand. Madara offers me the power to change everything. Konoha betrayed my family, and I will not forget that."

Tobirama clenched his fists, feeling the air crackle with tension. He could see the boy's pain, the way it twisted his resolve. "Power built on vengeance will only lead to more suffering. The cycle of hatred must end. You have the strength to help heal it."

Sasuke lunged forward, lightning crackling around him as he activated his Chidori. "You don't know what I've lost!" he shouted, the fury of his grief fueling his attack.

Tobirama reacted instinctively, summoning a water barrier jutsu to deflect the Chidori. The impact sent waves crashing around them. "Fighting will not bring them back!" he called out, hoping to reach Sasuke.

Sasuke, unfazed, pushed forward with a series of rapid strikes, each one powered by his need for vengeance. Tobirama countered each move with precision, carefully using just enough force to keep Sasuke from serious injury. They danced across the battlefield, embodying the conflicting ideologies of their clans.

As the battle escalated, Tobirama could sense the growing darkness within Sasuke. He could see the boy's potential, the weight of his choices, and a part of him ached with the knowledge of what lay ahead. "You can still honor your family by protecting the village!" he shouted, parrying another strike.

Sasuke's eyes blazed with fury as he unleashed a fireball jutsu, filling the air with smoke and embers. "Protecting Konoha means nothing to me now! It's just a reminder of my family's betrayal!"

Tobirama felt the weight of his choice bearing down on him. Deep down, he knew that only one of them could leave the battlefield alive, and in that moment, he made a decision. He could not bring himself to kill this child, a boy who was so much younger and filled with potential. As a reincarnated person, he was older than Sasuke and saw him as a younger brother, one who deserved to live and find his own path.

With one final push, Tobirama summoned a massive wooden wall to absorb Sasuke's next attack. As the wooden barrier shattered, Sasuke seized the opportunity, charging forward with everything he had.

"Enough of this!" Sasuke roared, his Chidori glowing with lethal energy. "You won't stop me!"

In that fleeting moment, Tobirama stepped aside, allowing the attack to connect. The world around them blurred as Sasuke's Chidori pierced through, striking Tobirama with a force that echoed like thunder.

Tobirama gasped, feeling the life drain from him. He stumbled back, the light in his eyes fading as he fell to his knees. The realization hit Sasuke like a brick—he had done this. The friend who had tried to guide him, to save him, was now collapsing before him.

Sasuke's breath hitched as he watched Tobirama's expression. There were no words, only a quiet acceptance in his eyes. The truth settled heavily in Sasuke's heart: Tobirama had allowed this to happen. It wasn't just a mistake or an unfortunate turn of events; it was a choice.

As Tobirama sank lower, the last remnants of strength leaving his body, Sasuke stood frozen, shock and disbelief etched on his face. He had always sought power, and now, standing over the guy who had trusted him, he felt anything but powerful.

Tobirama's gaze held no anger, no regret—only a profound understanding that resonated with Sasuke. He saw a child lost in a storm of vengeance and despair, and in that moment, he understood that the path of violence was not the answer. Sasuke deserved a chance to find his own way, free from the burden of their clans' hatred.

As the final breath escaped Tobirama's lips, Sasuke realized the depth of Tobirama's sacrifice. Madara watched from the shadows, a smirk creeping onto his face. The corners of his mouth lifted in satisfaction, knowing that the reincarnated Tobirama had fallen at the hands of the boy he sought to protect. "The cycle continues," he murmured to himself, reveling in the chaos he had orchestrated.

As the sun dipped below the horizon, Sasuke sat alone in the aftermath, grief and guilt weighing heavily on his heart. The shadows of vengeance loomed larger than ever, and he was left to grapple with the choices that would shape the future of both the Uchiha and Konoha.

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Years later a little girl with red rimmed glasses named Sarada stopped reading a book about Godaime.

She started running toward another room where her father was resting. She started poking him with an annoyed face.

Sasuke, now much older was actually awake and thought this was adorable and he catched her hand.

"I am trying to sleep."

He said with a resigned smile.

"Papa, why did you kill your friend?"

Sasuke was too stunned to speak till he saw the book she was holding. A book he wrote about his friend. His eyes reddened before he lifted Sarada and placed her beside him.

As he tucked her in the blanket he was using, he started talking to his little daughter.

"Did you know if he had a daughter he said he would name her Sarada?"

As he saw Sarada shaking his head in a way that made her even more adorable, he began telling the tale of a man who was the opposite of his namesake.

Everyone though his best friend was Naruto.

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Even Naruto himself.

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They forgot too quickly.

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But he didn't.

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Maybe couldn't.

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And nothing could make him.

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He saw the title of the book he wrote, again: Senju Tobirama: The Godaime of Konohakagure.

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This was the way he published it.

But there were 3 words in the title only this book had.

My Best Friend.