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Chapter 22 - Chapter 21:Kakashi Do you have.. Nano

By the time our session with Kushina-sensei ended, Itachi and I were mentally drained but not done. We stood up from our spots, nodded in quiet thanks, and made our way back toward the front of the house.

Minato-sensei was still there.

Still lying flat on the floor.

Still... snoring.

I couldn't tell if he was unconscious or just enjoying a nap after being launched into another dimension by his wife. Either way, the man looked too peaceful for someone who had been knocked out cold.

We exchanged glances, then Itachi leaned down and gave him a light shake. Minato jolted awake with a small gasp, blinked twice, and sat up like he'd just come back from the Pure Land.

"Time to train," I said with a grin.

We headed into the backyard, where morning light filtered through the trees, casting dappled shadows on the grass.

Minato worked with Itachi first, focusing on combat awareness and assassin-level precision. It wasn't just about the Sharingan or genius-level tactics. Minato was teaching him how to kill. Not because it was noble, but because war didn't care how old you were. It only cared whether you survived.

He showed Itachi how to use the terrain, how to move without leaving a sound, how to vanish when you were done. It wasn't mercy. It was survival.

Then, it was my turn.

Minato turned to me with that calm, curious look of his, the one that said he knew I had something strange in mind.

"Sensei," I asked, "what is wind?"

He tilted his head slightly. "Go on."

"Does it always have to be sharp? Fast? Slicing?" I continued. "Can wind be slow, like a breeze? Can it be soft and suffocating, like poison? Or trembling like the earth before it breaks?"

Minato nodded, eyes thoughtful. "Wind can be all of those things. It's not just fast and sharp; that's just what most people use. Wind is movement. It's pressure. Vibration. Direction. It can whisper or scream. What matters is how you shape it."

He paused, then added, "Fire is hot, right? But it can also be warm. It can smolder. It depends on what you focus on. Wind is the same."

That hit me.

He continued, "Your jutsu is fast, but destructive. If you want it to be more than raw power, you have to learn how it behaves. Feel it. Command it. Align your chakra to the nature of the wind you want to create."

I sat down cross-legged, grounding myself. Closed my eyes. And began to listen.

Not with my ears but with my chakra.

My jutsu wasn't meant to be a blade. It was meant to be a field of distortion. It worked by exciting the atoms in the air, pushing them like a stacked chain of dominoes, resonating vibrations from one to the next.

It wasn't just cutting. It was a disruption. Internal damage. Ripping things apart not by force, but by collapse.

The shape, the direction, the frequency, it could all be adjusted. That's what made it terrifying.

That's what made it mine.

"Nano," I whispered in my mind. "Create a simulation. I want to see what chakra flow this jutsu needs for full potential. I want precision. I want power. Show me what works and what doesn't."

[Nano Active – Simulating Technique: "Severance Field"]

Objective: Identify optimal chakra shape, nature flow, release vector, and structural resonance

Simulations Running...

Scenario 001: Chakra forms a projectile. No resonance. Result: Bullet impact. Minimal damage.

Scenario 017: Chakra compresses. Backlash. Result: Right hand vaporized.

Scenario 038: Improper flow timing. Jutsu collapses inward. The user experiences internal trauma.

Scenario 083: Wind resonates, wide-area effect, but no speed. Delay on impact.

Scenario 192: Target destabilized. Weak resonance.

Scenario 201: Mild success. Controlled distortion. Safe. Too slow.

Scenario 237: Speed increase. Partial fragmentation of jutsu. Mid-range failure.

Scenario 253: Success. Wind resonates at a controlled frequency. Structural collapse of the test target. Speed ~989 km/h. Contained. Directional. Controlled.

[Simulation Complete – Optimal Flow Identified]

I opened my eyes.

I had it.

A version of the jutsu that worked: stable, powerful, and near the speed of sound.

But it wasn't perfect yet. It was still too slow for some missions. Too dangerous for others. So I kept working. Tweaking. Adjusting the structure so I could change its effects depending on the situation.

Wide-scale resonance for destruction.

Pinpoint needle bursts for internal trauma.

Rotating patterns to slice without visibility.

Layered pulse waves to break armor without surface wounds.

I wasn't just building a technique. I was designing a system.

By the time Minato's training session came to an end, the jutsu was still unfinished. But it had evolved. It was real now, alive in a way only chakra techniques could be. Something that reflected me.

We regrouped inside for lunch with Minato and Kushina, the backyard now quiet, the air smelling of scorched grass and ozone.

Kushina served rice and stew with a big grin, her usual energy fully recharged.

"You know," she said between bites, "Minato was so shy when we first met. Wouldn't even look me in the eye."

Minato groaned, burying his face in his hands.

I smirked. "Really?"

"He tripped over his own feet during our first mission together!" she laughed.

Itachi looked mildly interested. I, on the other hand, was taking mental notes.

Even legends had awkward beginnings.

Then Kakashi showed up.

Rin was with him, as always.

A grin tugged at my lips as I walked toward them. I couldn't help myself.

"Big Sis Rin," I said in my most exaggeratedly innocent voice, "you're always around Kakashi. Is it a coincidence... or do you just want him by your side all the time?"

Kakashi immediately stepped to the side, dodging with practiced ease as I nudged him toward her. Rin's face flushed.

"N-No, it's not like that!" she said quickly, waving her hands.

I shrugged dramatically. "Then it must be Kakashi who's always 'accidentally' finding you."

Kakashi rolled his eyes. "You don't value your jaw, do you?"

"Truth is truth, lovebirds. I don't write the script."

Itachi and I exchanged a glance before heading toward the nearby clearing to spar with Kakashi. Rin stayed behind with Kushina, probably grateful for the distraction.

As expected, Kakashi thrashed us.

Effortlessly.

But it didn't matter. Every fight with him sharpened our edge. We learned to read his movements, to anticipate his feints. Our instincts were getting sharper by the day.

After the match, as I dusted myself off, I turned to him.

"Kakashi," I asked, "can you show me your Chidori?"

He looked at me sideways. "Why?"

"I'm working on my jutsu," I said. "Minato-sensei mentioned you created an A-rank technique on your own. I want to understand it. Analyze it."

Kakashi raised an eyebrow, but his smirk gave him away. "Fine."

He stepped forward, forming seals.

Then, lightning.

It exploded in his palm like a wild beast, dispersive, violent, uncontrolled. He dashed forward, thrusting the chakra-covered hand into a tree. The impact cracked the trunk with a shriek of tearing wood, leaving a clean hole and smoldering bark.

Destructive. Impressive. Loud.

But flawed.

I stepped closer, analyzing. "When you use this jutsu, you can't move off a straight line, right?"

Kakashi nodded. "The technique requires forward momentum. I convert that motion into piercing force."

"Then doesn't that leave your flanks open? If multiple enemies jumped you from the sides, you'd be vulnerable."

Kakashi crossed his arms. "That's what the Sharingan is for. I use it to read movement with dynamic vision."

"But vision isn't action," I countered. "You might see them. But can your body react fast enough to dodge mid-jump?"

He hesitated. "...Not always. That's why I channel lightning chakra through my nerves. It boosts my reflexes."

"But it's still linear," I said. "No lateral control. If you need to cancel, you lose momentum, waste chakra, and become exposed."

Kakashi frowned. He didn't argue.

So I offered a new angle.

"What if," I said slowly, "instead of dumping so much chakra into forward propulsion, you focused on condensing it? Refine it into a point, not for blasting but for precision."

"Condense...?"

"Yeah. Form it into a claw, maybe. Something stable. Then use the remaining chakra to stimulate your nervous system, like Raikage's lightning armor. You get control, speed, and freedom to dodge."

Kakashi's expression shifted, half-curious, half-challenged. "Not a bad theory. But controlling that kind of chakra output isn't easy. And stimulating my body at the same time? That's dangerous."

"It is," I admitted. "But don't use too much. Just enough to hold the form. Shape the lightning into a claw or spear, then maintain it with minimal feedback. The rest goes into mobility."

He went quiet, then, without another word, sat down and began to meditate.

I watched.

Ten minutes passed. Then twenty.

Then, chakra.

Purple lightning began to crawl across his hand—not wild, not screeching—but calm, focused. A soft hum buzzed through the air.

He shaped it into a claw.

It wavered.

Failed.

Again.

Failed.

Tried.

Failed.

Electric arcs crackled and died. Once, he even shocked himself hard enough to jolt backward.

But he kept trying.

And on the ninth attempt, something clicked.

The lightning claw solidified, tight, curved, and sharp. He moved forward in a blur, faster, cleaner, more fluid. No more tunnel motion. He dodged, spun, and pivoted mid-run. The lightning stayed on him like a second skin.

The technique didn't last long. It broke apart halfway through his trial run. But it was real. It was working.

He stopped, panting.

Then turned to me with a smirk.

"Thanks, Akira. That's a controlled version of Chidori, one I never thought to develop. It's not perfect yet... but it's a start."

I nodded, still slightly stunned.

He placed a hand on my shoulder. "When you're building your jutsu, just call me. I'll be there."

And with that, Kakashi walked off toward Minato's house, leaving me and Itachi alone.

I stood there, jaw half-open.

"How the hell did he figure that out so fast?" I muttered.

Itachi raised an eyebrow. "Talent?"

"Talent my ass," I muttered.

I whispered, "I ran two hundred simulations with Nano before I even got half the shape right...That technique took him decades in the original timeline. Now he cracks it in under ten tries?"

I looked inside my mindspace.

"Hey, Nano. Be honest. Does Kakashi have a version of you, too?"

[Nano Response: Negative. You are the sole active host of nano-augmented intelligence.]

I sighed in relief. "Good. One Nano is enough for this world. But damn... Kakashi's still terrifying."

The height of success faded just a little. Because I realized something else:

Being the only one with Nano meant I had an advantage, but also a target. If the wrong people, like Danzo, ever found out…

They wouldn't try to recruit me.

They'd try to dissect me.

I sighed and walked home beside Itachi, chatting idly about our training, while my mind plotted fifty different contingencies for a future that was starting to feel more unpredictable than ever.

The next day, I walked into Kushina-sensei's training hall with a quiet confidence and a stack of notes clutched in my hand.

"I've finished the beginner syllabus," I told her. "Theory and practicals."

She raised a skeptical eyebrow, arms folded. "Already? Alright, prodigy, prove it."

She tossed me an explosive tag scroll.

"Make this work. Better yet, improve it."

I nodded and stepped forward. Kneeling down, I placed the tag against the training dummy, made a quick hand seal, and infused it with chakra. But instead of just triggering the default burn sequence, I made a few subtle adjustments: reduced the delay glyphs, added a trigger seal sensitive to heat, and infused a small layer of ambient camouflage chakra to mask its presence visually and chakra-wise.

Click. Boom.

The tag exploded, clean, precise, and hotter than standard. It lit the dummy in a controlled burst, not too big, not too small. Kushina blinked.

"Less delay... more power... and camouflaged?" she said slowly. "You passed."

I smiled. "Can I see the Four Element Seal now?"

She smirked. "Don't get cocky. But yes."

From that moment, my focus narrowed.

Days blurred together. The training fell into rhythm, repetition forged into routine. We trained with Minato. We studied seals with Kushina. We fought Kakashi, lost to Kakashi, learned from Kakashi. At night, we sat and broke down every concept until it made sense.

I spent every free second pouring over the Four Element Seal's design. Nano scanned every line, every angle, every chakra flow. I wasn't just learning it, I was deconstructing it. Rebuilding it to serve my purpose.

And every night, I returned to my main goal: perfecting Severance Field.

But it wasn't easy.

The jutsu was powerful and brutal so but something was always off. For days, Nano simulated thousands of versions. And in every one, something failed.

Too fast, and the jutsu turned into a bullet, sharp but ineffective.

Too wide, and it lost speed.

Too destructive, and it became slow and unstable like a wind-based earthquake that took too long to land.

It had to be everything at once: fast, precise, deadly, and versatile.

I couldn't make that work.

Until attempt number 2,000.

I stood up from my meditation mat, breathing deeply. The sun was low, and the grass outside swayed gently. My hands moved without thought, forming seals as I whispered:

"Ram. Dog. Hare. Tori."

Then, a flick of my fingers.

The air in front of me screamed.

A line of distorted wind resonated from my hand and tore through a tree in the distance. Not just cut—shattered. A perfect hole, four meters wide, punched clean through its thick trunk. The jutsu kept going, passing through three more trees before losing power.

I staggered back and fell onto the grass, panting hard. Sweat clung to my face.

[Nano Report:] Chakra depletion: 90%. Estimated conservation strategy: Use of controlled range and AoE could reduce chakra usage to 30% if confined to sub-30cm diameter, 10-meter range.

I laughed aloud, even through the burn in my lungs. "It works... it works!"

The noise brought company.

Minato, Kakashi, Rin, and Itachi all appeared at the edge of the training field, drawn by the blast.

Minato surveyed the broken trees and smiled knowingly. "You've done it. From the looks of the destruction... at least B-rank."

I shook my head and grinned. "A-rank," I said proudly, chest heaving.

I sat down and began meditating to recover. Thirty minutes later, I opened my eyes again.

"Alright," I whispered. "Nano next step. Remove hand seals. I want this jutsu activated on movement. Transmit the control adaptation directly to my body."

[Confirmed.]

I stood, stretched my hand forward, and flicked my finger.

The world cracked.

A thunderclap tore through the field as a line of wind screamed forward, invisible but violently present. It ripped through the tree in front of me, snapping the trunk in two. The sound was cleaner now, like a blade cutting the air itself.

No seals. Just intent.

Itachi broke the silence first.

"You've beaten me to creating a jutsu," he said, tone calm but firm. "But I'll create something stronger."

I smiled. "I'll be waiting."

Minato approached, his hand clapping down on my shoulder. "You're a monster," he said, amused. "That jutsu is seamless. Fully formed. A-rank and more. I've never seen something so... versatile. You can scale it up or down?"

I nodded. "Exactly. The full version is only for emergencies. Normally I'll use it like a B or C-rank technique to conserve chakra and apply precision."

Kakashi stepped closer, Rin beside him. "Akira," he said, "you should register this jutsu at the Hokage's office. A jutsu like that? You'll get compensated. And once it's official, you'll have protection too. Hokage-sama will take notice."

I scratched the back of my head. "I was thinking about that. But first, I want to talk to Uncle Inoichi and Uncle Shikaku. See how they feel about it."

"Why?" Rin asked.

"Because... I am a genius," I said with mock seriousness, "and if I start creating too many jutsu too fast, I might end up being too famous. Might be dangerous for the world."

Itachi didn't miss a beat. He smacked me in the back of the head. "Genius in making people angry, maybe."

We all laughed, tired, proud, satisfied.

And even as the sun began to set over the trees I'd just destroyed, I knew the real journey had only just begun.

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Chapter Length-2753 words

A/n - I truly love reading your comments, and your support means everything to me. So, please keep reading my fanfic; I will continue to deliver my best in this journey.

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