Reincarated with Nanites

~ Hayatou's Pov ~

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I decided I needed to go out for a walk from what N.E.O told me... Which person in their right mind wouldn't? To be honest expected there to be a little change, making the Sharingan itself a bit better.

But, N.E.O saying he could make something like the eternal Mangekyo Sharingan (EMS) boost my visual acuity by 300 times was not what I expected from my fight with Fugaku... I guess the phrase 

'Sighs* Hey, N.E.O... Could you tell me how this process will even work, and how you even got the Sharingan itself to become that powerful? I'm still clueless about this entire process. And what will happen when I actually fuse those genes within myself...'

[To fully comprehend the process, we must first address the fundamental nature of the Sharingan itself. As you are aware, my capacity to manipulate genetics does not merely enhance traits—it push them to their theoretical limits.]

'Yeah, the body reconstruction was evident enough of that aspect of what you could do.' Heck, it's still amazing that he can push civilian blood like mine to such ridiculous levels; all of this was done by essentially tweaking how and where the genes were.

[Good, but... When I gain access to new genetic samples. I can also mix and match those genes and traits to be the best of both worlds. It's taking your DNA and Fugaku's DNA and seeing which would cause ideal mutations and potential evolutions within your body, and keep those changes... thus, creating a new being entirely. Being a Uchiha and You, but not fully both at the same time...]

My steps slowed a bit... 'You're saying… you don't just copy the genes. You can also fully integrate them?' If that's the case.

[Affirmative... The Uchiha genetic sequence is extraordinarily efficient, as I've said before; yet it possesses inherent limitations—primarily, its reliance on stress-induced evolution and chakra saturation thresholds. By identifying those evolutionary bottlenecks, I can somewhat circumvent the typical limitations. In essence, I extract the theoretical peak form of the Sharingan—an evolutionary state that could take multiple generations to naturally manifest—and integrate it immediately with your own DNA.]

I narrowed my eyes slightly, 'So… you're telling me that, at least in theory; even the Uchiha themselves would never have reached this level without forced evolution.'

[Correct. The Eternal Mangekyō Sharingan is a relatively stable mutation of its base state, one that prevents deterioration through biological reinforcement. However, its evolutionary potential ceases there. What I am doing is breaking that stagnation entirely—removing the need for external stimuli and emotional trauma. The result will be something fundamentally new...]

'I see...' I understood what he was saying. Although it's a deviation in my plans. It isn't inherently a terrible deviation.

[It doesn't end there either... This version of the Sharingan is also bolstered by mutations from your genes. Thus, also enhancing it's effects. I also have good news for you physical limitations as well.]

'Hmm? Really? Well, lay it on me then.'

[After scavenging through Fugaku's genetic structure and comparing it to yours, I have identified multiple optimizations. First, I can more than double your current physical limits by refining your muscle density and nerve conduction speed. Second, I have uncovered an alternative method of utilizing chakra to accelerate your healing capabilities.]

I blinked. 'Healing? Like a passive regeneration factor?'

[Not quite... While full regenerative abilities require significant cellular modification, I can now implement a system where your chakra actively assists in cellular repair during rest cycles. In other words, when you sleep, your body will regenerate at a vastly increased rate—approximately five times faster than normal. Small wounds will close within minutes, and internal damage will mend overnight.]

I whistled lowly, 'That's… actually ridiculous.' If this was the effect of just Uchiha blood and mine, what about people like Hashirama? Naruto? Kaguya herself? How much more would they enhance me? No, I shouldn't think about that for the time being...

I need to focus on what I have now. I had more than enough time to train, and execute my plans in becoming stronger...

Still, in essence, as long as I wasn't killed outright, I'd likely recover from most injuries naturally in a fraction of the time it would take anyone else. That meant I could push my body harder, train longer, and heal from damage without downtime.

It was practically a direct boost to my overall longevity.

'Anything else?'

[Yes. Due to the integration of Uchiha neurology, your ability to utilize Genjutsu has also been significantly enhanced. While the Sharingan already possesses innate Genjutsu capabilities, your brain's improved chakra regulation will allow you to manipulate external chakra flows with greater efficiency, making your illusions far harder to detect or resist.]

So, not only do I get physical enhancements, but my Genjutsu is also getting a buff? 

'When can I start the process... I'm assuming that it'll fundamentally be another body overhaul like last the last few times, right?'

[Affirmative. Fortunately, you currently have enough energy for DNA integration process... It will take a few hours to complete, 7.4 in fact.]

I sighed. 'Seven entire hours? Sheesh… I guess the price for potential is patience.'

Still, it wasn't a bad trade-off. Seven hours of waiting for a permanent evolution? I'd take that kind of deal every time.

'Alright, I'll figure that out lat—'

"Boy!"

I blinked.

Turning my head toward the source of the voice, I spotted Fugaku standing below, arms crossed, his usual stoic expression in place... With a few swelling here and there, give or take.

Still. He actually showed up, and quite early at that.

I figured he'd need at least another day before coming to find me, considering how hard I knocked him out. Guess I underestimated how fast he'd recover—or how stubborn he was.

I tilted my head slightly, smirking. "And here I thought you'd be sleeping in, Fugaku-sama."

He scoffed. "You're lucky I don't take that personally."

I chuckled, hopping down effortlessly to meet him on the ground. His eyes were sharp, analyzing me, measuring me. Not like before, though. No, this time, it wasn't just curiosity in his gaze. I could tell... There was acknowledgment.

And maybe, just maybe… a little bit of wariness. Maybe?

Regardless; I'm satisfied he has respect for my strength.

I quickly dusted off my sleeves, 'So, what brings you here? Here to pay your debt?'

I could see Fugaku's lips pressing into a thin line... "Hn~ You really are an arrogant one."

I smiled, 'I'd call it confidence, but sure...'

He exhaled through his nose, shaking his head. "Come. We have much to discuss..."

Oh? Now this was getting interesting.

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END