At this moment—
A Marine couldn't hold back and asked weakly,
"Commander Bogard, do you think Mr. Kai can really master all six Rokushiki techniques in just one day?"
Bogard opened his mouth to refute—yet no words came.
If it were anyone else, he would have instantly denied such nonsense without hesitation.
But the problem was…
The boy before them was not ordinary.
He was a prodigy.
A true aberration of heaven and earth!
Just moments ago, Kai had done the impossible.
He had mastered Geppo—the hardest of the Six Styles—after watching it once.
So then, with such monstrous talent…
Was it truly impossible for him to master all six techniques within a single day?
No. Quite the opposite—
The possibility was extremely high.
"One day to master Rokushiki?" Bogard's heart pounded violently.
"If he actually does this…"
"Then Mr. Kai will shatter the Navy's centuries-old record!"
"A record that no Marine of future generations could ever hope to match!"
The current record-holder… was none other than Vice Admiral Aokiji, one of the strongest monsters of this sea, a candidate for future Admiral.
And now—
Bogard could already see it.
The record Aokiji had set was about to be broken…
By a four-year-old child!
His eyes trembled. "Can he really…?"
"One day, to fully master Rokushiki!"
But when it came to Kai—this genius who defied all logic—Bogard could not dismiss the thought.
From the sky, Kai descended slowly.
Bang, bang, bang!
Each step upon the air burst with a sharp sonic crack as he tread Geppo down to the deck. His landing was smooth, steady.
Facing the dumbstruck Garp, he smiled faintly.
"Old man, let's continue. There are four Rokushiki left. Why don't you teach them all at once? That way, we won't waste unnecessary time."
Garp's lips twitched.
Others had to train Rokushiki one by one, struggling with each move.
But his grandson?
The rhythm was entirely different!
"Waste of time?!" Garp's heart screamed.
"You've barely been learning for a quarter of an hour!"
"Not even fifteen minutes, and you've already mastered two techniques!"
"And you're still complaining about wasting time?!"
This boy's words alone were enough to make generations of Marines who spent years learning Rokushiki crawl into a hole in shame.
With a long breath, Garp suppressed his chaotic thoughts.
Very well. Given the monstrous talent Kai had shown, he decided to demonstrate the remaining four techniques all at once—
Kami-e (Paper Arts), Tekkai (Iron Body), Rankyaku (Tempest Kick), and Soru (Shave).
First, Kami-e.
Garp performed it before Kai, explaining the subtleties of making one's body flutter like paper, evading attacks with superhuman flexibility.
Soon after, Kai attempted.
He failed—
[Training yielded: Kami-e proficiency +0.01!]
[After 100x amplification…]
[Host gains: Kami-e proficiency +1!]
Boom—!
Knowledge poured into his mind. His body understood instantly.
Within moments—Kai had completely mastered Kami-e.
Next, Tekkai.
Garp demonstrated, his muscles hardening like steel. He explained the key points, the cost of mobility in exchange for defense.
Kai tried once. Failed—
[Training yielded: Tekkai proficiency +0.01!]
[After 100x amplification…]
[Host gains: Tekkai proficiency +1!]
Memories surged.
Moments later—Tekkai was his.
Then came Rankyaku.
A devastating offensive technique. Not a simple kick, but one executed with such speed and force that it generated a vacuum blade, cleaving through targets like a swordsman's slash.
A single strike could split a house in two.
At its peak, it rivaled the sword aura of true masters.
Garp's demonstration left a visible scar across the air.
Kai failed once—
[Training yielded: Rankyaku proficiency +0.01!]
[After 100x amplification…]
[Host gains: Rankyaku proficiency +1!]
Instantly, he understood it fully. Rankyaku was his.
Finally—Soru.
The technique most similar to Geppo in importance.
An explosive movement skill, making the user appear to vanish from sight.
Not true teleportation, merely speed so extreme the eye could not follow.
Yet in combat, its value was immeasurable.
And just like Geppo, it was one of the two moves Kai had most longed for.
Garp explained carefully, then demonstrated—his form flickering, vanishing and reappearing in the blink of an eye.
Kai memorized the method.
Attempted once. Failed—
[Training yielded: Soru proficiency +0.01!]
[After 100x amplification…]
[Host gains: Soru proficiency +1!]
Knowledge erupted in his mind.
And at that moment—
Kai had mastered the final piece of Rokushiki.
Today, Rokushiki was his.
All six forms, learned within half an hour.
His strength had soared to a new level.
No more flaws.
He had aerial combat, close combat, ranged slashes, ultimate defense, evasion, and instantaneous speed.
He was now an all-around warrior.
Perfect. Flawless.
A smile tugged at his lips.
"With Rokushiki fully mastered, I doubt there are many in the entire first half of the Grand Line who can truly threaten me."
By his estimate—
His combat power was at least equal to a 50 million berry bounty.
Enough to sweep the entire East Blue.
So long as the hidden old monsters stayed dormant, he was invincible.
Even in the Grand Line's first half, his power was already nearing the very top.
And this was just with Rokushiki.
If he gained Haki as well… his strength would be beyond measure.
"How is it?"
"Did you see clearly, the four remaining Rokushiki I just showed you?" Garp asked with a strange expression.
"Do you need me to demonstrate again?"
"No need, old man."
Kai smiled lightly.
"I've already mastered all of Rokushiki."
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