Naruto: I'm Really Not an Evil Uchiha!

"Ugh... Ugh... I can't face Kakashi anymore. What's the point of all this?"

Nohara Rin furiously threw her cherished medical documents onto the ground, venting her frustrations.

She stared at the scattered papers with a mixture of despair and anger. Her hysteria spilled over as she shoved a piece of pork from the table to the ground and grabbed it with both hands, attempting to tear it apart.

Unfortunately, the tough pork skin didn't yield easily. Rin struggled for what felt like an eternity, but it remained intact.

Tears streamed down her face as she collapsed onto the floor, half-kneeling, her hands covering her face.

Shimizu simply stood nearby, silently watching.

Each person copes differently, after all.

Shimizu remained quiet, while Rin lashed out loudly.

Understanding this, Shimizu decided to wait for Rin to calm down.

Ten minutes passed. Then thirty. Then an hour. Two hours…

As Rin's cries continued unabated, Shimizu's patience was nearing its limit.

Spending two hours of his training time just to accompany Rin, only for her to remain ungrateful—he couldn't help but feel annoyed.

"What are you crying about?"

Shimizu abruptly grabbed Rin by the chin, tilting her tear-swollen eyes upward to meet his gaze.

Rin glared back at him, her silence filled with resentment.

"I only touched you for a while. Your purity is still intact. If you don't speak of this, and I don't either, who will ever know?"

"Relax. When you're with Kakashi, he won't suspect a thing."

Hearing this, Rin's sobs finally began to subside.

What Shimizu said made sense. She was still pure; she hadn't truly betrayed Kakashi.

Moreover, everything she had done was for Kakashi's sake.

"This was unavoidable… completely unavoidable…"

Rin closed her eyes, unwilling to look at Shimizu any longer, fearing her anger would reignite.

She justified it to herself—everything was for Kakashi. If Kakashi ever found out, he might even understand her actions.

"A week from now, I'll come back. But if you dare go further with me, I swear—even if I have to die—I'll drag you down with me."

Her voice was icy, devoid of any warmth, as she straightened her disheveled clothes. Picking up her scattered medical documents, she left Shimizu's house without looking back.

"Go further, huh?"

A laugh involuntarily escaped Shimizu.

Wasn't Rin getting the hang of it?

Turning everything into a transaction.

She offered certain services, and Shimizu provided the materials.

Her words implied a boundary—not going further was acceptable.

A sense of anticipation stirred within Shimizu as he thought about their next meeting. What kind of face would Rin show him then?

When he finally had Rin completely under his control, she would not only become a convenient outlet for his frustrations but also a capable assistant.

Together, they could delve into medical ninjutsu research. And if he found a way to win over Tsunade… Just imagining the progress in medical ninjutsu made his blood surge with excitement.

He dreamt of uncovering the secrets of Yang Release through medical ninjutsu—unlocking the power to manipulate life and death itself.

Medical ninjutsu was a perfect application of Yang Release. Just look at how Sage of Six Paths Naruto used it to save Guy, who was on the brink of death, or how he casually regenerated Kakashi's eye.

True mastery of medical ninjutsu would rival the powers of a god.

For the next two days, Shimizu stayed home, practicing the Rasengan.

Buzz!

A sharp cutting sound emanated from his palm as a brilliant blue sphere materialized, glowing faintly with perfection.

"Rasengan!"

He struck a wooden post with it, slicing through effortlessly, like a knife through butter. Splinters flew in all directions, leaving a deep crater in the wood.

"Not bad."

Shimizu nodded with satisfaction.

He had mastered the Rasengan in an impressively short time.

Standing on the shoulders of giants, he had refined the training methods laid out before him. If he couldn't learn it, that would truly be strange.

Shimizu's innate talent wasn't bad to begin with. Coupled with the special chakra emanating continuously from his Three Tomoe Sharingan, his physical attributes rapidly aligned with the eye's potential.

This significantly enhanced his learning ability.

The Sharingan, known as the Mirror Eye of the Soul, synced a user's body with their inner strength as the heart grew stronger.

Shimizu, with his omniscient perspective, acknowledged the truth in this statement.

The Sharingan was an almost perfect Kekkei Genkai in this world. Even the official databooks affirmed that the Uchiha clan possessed the strongest bloodline limit.

With even a single tomoe, the eye granted formidable abilities like heightened perception, replication, and hypnosis. As the tomoe increased, so did its power.

It was a multi-functional eye that even boosted chakra reserves.

The Uchiha clan already had a naturally high chakra capacity, second only to clans like the Uzumaki and Senju.

Compared to other clans like the Sarutobi, Aburame, or Inuzuka, they were on a completely different level.

Upon unlocking the Mangekyou Sharingan, a user gained two unique ocular powers and the ability to manifest the powerful Susano'o.

"With this, missions will go much more smoothly."

Thanks to the Three Tomoe Sharingan, Shimizu's chakra levels had risen again, now comparable to those of an elite jōnin—on par with first-arc Kakashi.

In battles between shinobi, it was often a fight to the death.

Even among those of similar strength, or slightly weaker, luck played a huge role in determining the victor.

After all, most shinobi were glass cannons—fragile yet powerful.

Now armed with the Rasengan and proficient in the Body Flicker Technique, Shimizu could be considered a younger version of Minato.

His margin for error in combat had significantly improved.

Placing the shattered wooden post aside, Shimizu sat on a small chair in his yard, contemplating his next moves.

"Although speed improves survivability, the ultimate solution is to strengthen my physical body. Both defense and recovery capabilities need to be exceptional."

Relying on the Susano'o for defense wasn't an option. For one, unlocking the Mangekyou Sharingan was still a long way off.

Even then, the Susano'o was an active ability—not ideal for passive defense.

Using the Body Flicker Technique to dodge attacks yielded similar results without relying on such a skill.

What Shimizu needed was a passive ability—one that could protect him from sneak attacks.

"Lightning Release Chakra Mode..."

He rubbed his chin, thinking of the signature technique of the Raikage.

A B-rank jutsu: Lightning Release Chakra Mode.

This technique enhanced the user's physical body, providing permanent boosts to physical strength and endurance.

Its most powerful user was the Third Raikage, whose formidable body once wrestled the Eight-Tails to a draw, both collapsing from exhaustion.

Shimizu had long been interested in this technique. He'd scoured the Uchiha clan's archives for something similar.

At best, he found techniques for localized enhancement or cellular activation.

Achieving full-body enhancement like Lightning Release Chakra Mode was another story entirely.

Even if it existed, not everyone could learn it.

This B-rank technique required at least jōnin-level strength, if not extraordinary talent.

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