Starting in Naruto with a Daily Login System

I woke up to the familiar chime of my Daily Login System.

Ding!

[Congratulations! You have logged in for a milestone reward!]

Reward: High-Grade Chakra Enhancement Pill

I sat up, rubbing the sleep from my one good eye. Oh? Now that was actually useful. Way better than the garbage I got during the mission.

Let's see… Day 1? A rusted kunai. Trash. Day 2? A single blank scroll. What was I supposed to do with that, write a diary? And Day 3? A toothbrush. Not even a fancy one. Just… a toothbrush. Because apparently, even mystical cheat systems cared about oral hygiene.

But today? Today, I hit the jackpot.

I pulled out the pill and examined it. It looked unimpressive—small, round, a deep blue color. But I could feel the raw power humming inside it.

With a shrug, I popped it into my mouth.

…

And instantly felt like I'd been struck by lightning.

A surge of energy exploded through my body, like I'd just chugged ten cups of espresso and got hit with a defibrillator. My chakra system expanded, the pathways widening, refining, strengthening. My reserves skyrocketed—from solidly above average to stupidly high for a thirteen-year-old.

My breathing slowed. My body adjusted. Then, finally, the rush settled.

I clenched my fists, letting the chakra thrum beneath my skin.

"Oh yeah," I muttered. "This is gonna be fun."

—-

I wasted no time putting my new and improved chakra to work. First, I ran through my basic ninjutsu, testing out how much my chakra capacity and control had actually improved.

Fire Release? Stronger. My Great Fireball Jutsu was no longer just a great fireball—it was practically a mini-sun, scorching the ground beneath it as it flew.

Water Release? Smoother. I formed a Water Dragon Bullet faster than ever, and for once, the jutsu didn't feel like it was trying to drown me in the process.

Lightning Release? Sharper. My Lightning Hound shot across the training field like an actual beast, its crackling form leaving deep, charred claw marks in the dirt.

Everything felt faster, stronger, more efficient—like I had been running on cheap gas before, and now I was suddenly using premium.

And then… I got to work on something new.

Raikiri.

I had already been experimenting with it before, trying to refine its power, but my chakra reserves had always held me back. I could only use it a handful of times before feeling completely drained. But now?

I took a steady breath, rolling my shoulders. The key to Raikiri—just like its weaker predecessor, Chidori—was control. Too much chakra, and it became unstable. Too little, and it wouldn't be lethal.

I let my chakra surge, channeling it into my palm, shaping it into something deadly.

The air around me began to crackle. The sharp scent of ozone filled my nose.

And then—

Chidori formed in my hand, screaming like a thousand birds.

The raw, electric power vibrated against my skin, sending tingles up my arm. I could feel the energy barely contained, surging and twisting like a wild beast straining against a leash.

But I didn't stop there. I compressed it further, shaping it, refining it, pushing past its limits—until the blue-white glow became sharper, more controlled.

The power increased, the sound became deafening, and suddenly, what I held wasn't just Chidori anymore.

Raikiri.

I exhaled, staring at the weaponized storm in my palm.

Yeah. This was the good stuff.

I took a step forward, muscles coiling.

Then—

BOOM!

The tree in front of me didn't just break—it exploded into a shower of splinters, the sheer force of my attack ripping through the wood like paper. The shockwave sent debris flying, and the ground beneath my feet trembled from the impact.

I stared at the carnage, my eye twitching slightly.

Okay. Note to self: maybe go easy on the chakra output next time.

I flexed my fingers, the residual electricity crackling between them. Even after the technique dissipated, my body still hummed with lingering energy.

I smirked.

Yeah, I was gonna have a lot of fun with this.

Destroying a tree in one hit was fun and all, but I needed to fine-tune my control. What good was an assassination technique if I kept accidentally leveling the landscape?

So, after a dramatic, anime-protagonist-style hair ruffle (because I was officially cool enough to pull that off now), I got back to work.

Step One: Speed

Raikiri was a close-range technique, which meant if I wasn't fast enough, I was dead. The original Chidori had a fatal flaw—tunnel vision. You moved so fast that your perception couldn't keep up, leaving you open to counterattacks.

I needed to fix that.

So I cranked up my training weights—Compression Training Weights, to be specific—and took off running.

The moment I activated Raikiri, my body surged forward like I had been shot out of a cannon. Trees blurred past me as I zigzagged through the training field, dodging obstacles, flipping over fallen logs, and sliding under low-hanging branches.

Each step burned, but I could feel it—my speed was increasing.

A few hours (and several broken trees) later, I was satisfied. My reaction time had improved, and the tunnel vision problem? Significantly reduced.

Step One: Complete.

Step Two: Precision

Next, I needed to hit exactly what I aimed for, no more, no less.

Deadshot—my incredible login reward that made my aim nearly perfect—had been helpful for kunai and shuriken. But could it help with a literal lightning blade?

Only one way to find out.

I lined up five kunai in a row, balancing them on thin bamboo sticks. My goal? Cut only the second one down the middle.

I activated Raikiri.

Lightning surged through my arm as I dashed forward, adjusting my trajectory mid-step. The world slowed just enough for me to see the angle.

Then—strike.

I skidded to a stop, turning back to check my handiwork.

The second kunai was cleaved cleanly in half.

The others? Untouched.

I grinned.

Step Two: Complete.

Step Three: Endurance

Raikiri was powerful, but draining. Before, I could only use it a few times before feeling like I had just run a marathon in full armor.

But thanks to my High-Grade Chakra Enhancement Pill and my newest Unlimited Energy Bar (which I was 90% sure was just a glorified granola bar, but hey, infinite stamina was infinite stamina), I could finally push myself harder.

So I set a goal: 20 Raikiris in a row.

One.

Lightning surged. I lunged forward. A boulder split in half.

Two.

The next tree shattered into sawdust.

Three.

The ground beneath my feet cracked as I struck downward.

Four. Five. Six.

Sweat dripped down my face, but my muscles didn't give out. My Unlimited Energy Bar kept me going.

Ten. Eleven. Twelve.

My control improved with each strike. The world felt clearer, sharper—like I could see the angles instinctively.

Eighteen. Nineteen.

My breath came fast, but my body held strong. I could keep going.

Twenty.

With one final strike, I tore through a reinforced steel plate, slicing it in two like butter.

I exhaled, heart pounding.

That was it. That was the limit I had never been able to reach before.

I grinned, rolling my shoulders.

"Alright," I muttered, feeling the static still buzzing under my skin. "Now we're getting somewhere."

And just like that, Raikiri was no longer just an idea.

It was mine.

````````````````````````````````````````

After Raikiri, I wanted more. More speed, more control, more lightning.

Kumogakure had their Lightning Chakra Mode, boosting speed and power by running chakra through their muscles. But I wasn't looking to bulk up and throw people through walls—I wanted precision. I wanted to move like lightning itself.

And I had an idea.

If I could direct lightning chakra into my nervous system, I could override my body's natural response time, letting it react faster than my brain could process. Instantaneous movement. No wasted reaction time. Pure speed.

Killua called it Godspeed.

I call a really stupid way to potentially kill myself.

But hey, progress requires sacrifice.

Attempt #1

"Alright. Just a small amount. Nice and steady."

I carefully directed the lightning chakra into my nervous system. Just a test. Just enough to—

"AAAAAARGH—!"

My whole body locked up, every muscle in my system firing at once. I hit the ground like a stiff plank, twitching uncontrollably.

Yeah. Turns out, electrocuting yourself is a bad idea.

After peeling myself off the dirt (and regretting every decision that led me here), I made adjustments. Instead of shocking my entire system like an idiot, I focused on key areas—legs for speed, arms for counters. Small bursts. More control.

Attempt #2: This time, I moved. And not just faster—smarter.

A kunai flew at me—I dodged before my brain even processed it. A rock shifted behind me—I spun around, kunai in hand, before I even registered the noise.

It was working.

But there was a problem.

The more I used it, the harder it was to stop. My body kept reacting even when I didn't want it to—like flipping a switch and having my body go, "Oh, we're running? Forever? Got it!"

I needed more control.

Still… this was way better than expected. I wasn't at Raikage levels yet, but I was getting there.

And next time? I wouldn't electrocute myself in the process.

...Probably.

After nearly frying myself alive for the sake of science (ninjutsu counts as science, right?), I decided it was time for a break. Not because I was tired—thanks to the Unlimited Energy Bar, I could probably train for weeks without collapsing—but because my body still felt like I'd been on the receiving end of a Raikiri to the face.

And I figured, hey—if I was gonna give my nervous system a break, I might as well do something I never did.

Actually enjoy Konoha for once.

First Stop: Dango Shop

I strolled into my usual dango place, ignoring the weird looks from people who weren't used to seeing me without a headband covering half my face. One eye down, a permanent scowl, and my hair looking more like my future self every day? Yeah, I was definitely getting closer to my final form.

The lady behind the counter gave me a once-over and sighed.

"Rough week, Kakashi?"

"You could say that," I muttered, taking a seat.

She nodded like she'd seen it all before—because, well, she probably had. "The usual?"

"Make it two. I need emotional support dango today."

I wasn't the only shinobi drowning their problems in skewered sweets. A few other ninja sat around, eating quietly, faces set in that same yep, life sucks expression.

Konoha's unofficial therapy method: fried sugar on a stick.

Second Stop: The Bookstore

Now, don't get me wrong—training was fun and all, but sometimes a guy just wants to read. And no, not just Icha Icha Paradise. I had standards.

…I mean, I did buy the newest volume, but I also grabbed a book on chakra theory, so it balanced out.

While browsing, I overheard two chunin gossiping nearby.

"Did you hear? That guy from Iwa—Taiseki—his team got completely wiped out."

I froze for half a second before forcing myself to keep flipping pages.

"Yeah, apparently Minato-sensei's squad ran into them. They didn't stand a chance."

The other chunin scoffed. "No one ever stands a chance against the Yellow Flash."

I sighed, closing the book. Yeah… I knew that better than anyone

Third Stop: The Training Grounds (Again, Because I Have a Problem)

So much for a break.

I tried to relax, but my hands kept itching to train, so I figured I'd at least do some light stretching. Maybe test my Deadshot ability on some moving targets.

I tossed a kunai without looking. Bullseye.

Another. Perfect hit.

I grinned. Man, this power was fun.

As I was about to throw a third, I heard a familiar voice.

"Oi, Kakashi! You slacking off or something?"

Obito. And Rin, standing right beside him, looking amused.

I sighed. So much for my peaceful day. Oh shit. Here we go again. 

---------

Get early access to 20+ chapters of my fanfics by supporting me on Patreon! [email protected]/ShuuraiFF