Training Field No. 1.
About one kilometer to the southeast—
A dense stretch of green trees.
Birdsong and fragrant air.
The scenery here was beautiful—refreshing enough to clear the mind.
"Haa…"
Kai exhaled heavily, wiping the sweat that slid down his forehead. He loosened his tense body and let himself feel the dull, lingering ache in his muscles.
He had just forced himself through a full quarter-hour of Armament and Observation training.
Not only was his body tired—
Even his spirit felt drained and sluggish.
But…
The results were obvious.
The moment Kai ended the session, the system's prompt rang out.
[This training session yielded: Observation Haki Skill +0.02, Armament Haki Skill +0.03!]
[After the 100x training effect boost…]
[Host gains: Observation Haki Skill +2, Armament Haki Skill +3!]
As the system's voice faded—
BOOM—
Kai's head throbbed with a heavy impact.
A surge of unfamiliar "memories" flooded into his mind like a roaring tide.
Knowledge about the two Haki types—
Was absorbed at terrifying speed.
Like a sponge drinking in seawater, he swallowed all of it, letting it merge into his body and transform into instinct.
It felt as though—
Someone who had trained both Haki types for over a decade had their memories ripped out, then forcibly stuffed into Kai's head.
A direct, brutal enlightenment.
Instantly raising his proficiency and control.
That was the system's terrifying nature.
After a short while, the system's "refinement" ended.
Kai smoothly absorbed every last fragment of the new memory.
When he opened his eyes again, a sharp light flashed within them.
He clenched his fists. With a thought—
A black layer of Armament formed like armor, wrapping both arms completely and releasing a razor-edged, oppressive aura.
"Armament… is definitely stronger."
"At this level, my Armament proficiency probably won't lose to people who've trained for three or four years."
Kai let out a quiet sigh of amazement.
And this was only the result of a single day.
One day—
And he had already chased down the level of Haki users who'd spent years.
If outsiders knew how fast his strength was growing, they'd probably start doubting reality.
"Besides Armament…"
"Observation has improved too."
"In terms of intensity, it's probably around what others reach after two years."
Kai smiled in satisfaction.
He tightened his right fist and casually punched the tree beside him.
BOOM!
A deafening crash.
The towering tree snapped.
A hole was punched straight through the trunk's middle—and the whole thing tilted and collapsed.
Rumble—!
The tree fell hard.
And Kai hadn't even thrown a real punch.
He hadn't even started exerting force.
"This destructive power…"
"It's terrifying."
"No wonder Armament is called the key to becoming a true top-tier powerhouse."
"Once you have Armament… you're no longer 'weak' on this sea."
Kai clicked his tongue softly.
Now he understood.
Why anyone with Haki was feared.
Because before mastering the "two colors"—
And after mastering them—
Those were two completely different worlds.
Two different tiers of life.
There was no comparison.
Kai estimated conservatively—
He was at least dozens of times stronger than he was before.
"And Observation…"
Kai closed his eyes and activated it directly.
Buzz—
A formless ripple spread from his body like an invisible tide, surging outward and blanketing the surroundings.
Within a three-hundred-meter radius—
Nothing could escape his perception.
Every movement. Every change.
His consciousness and spirit were focused to the extreme.
Even the slightest disturbance—wind through grass, a bird shifting on a branch—was detected clearly.
That was Observation's power.
Even if you shut your eyes—
You could still pinpoint everything around you with precision.
In fact—
What Observation "saw" was often finer and more accurate than sight.
"Against someone without Observation…"
"They'd be full of openings."
"With perception this sharp…"
"No wonder you can read an enemy's intent and trajectory before they even attack."
Kai chuckled.
Right now, if his opponent hadn't mastered Observation—
Kai could predict nearly everything they did.
That alone was enough to put him in an unbeatable position.
And if he pushed Observation to a higher level…
He could even hear the Voice of All Things.
Or worse—
Catch a glimpse of the future.
See fragments of what was about to happen.
Of course…
To reach that kind of Observation required terrifying talent.
Without natural gifts, effort alone wouldn't be enough.
But for Kai, that wasn't a problem.
With the Ghost Back System—
And the 100x amplification—
He was confident.
Sooner or later, he would reach that realm.
Kai slowly suppressed his thoughts and withdrew both Observation and Armament.
He rubbed his chin, considering a practical question.
"If I convert this into combat power…"
"My current strength shouldn't lose to any Marine Headquarters Rear Admiral."
"And I'm only one step away from Vice Admiral-level combat power."
Kai's eyes narrowed slightly.
Four years old—
And already brushing the edge of Vice Admiral territory.
Who on the sea could imagine that?
Across all the oceans, there had never been a precedent like this.
Kai was a hundred percent sure.
"If we translate it into pirate terms…"
"Even a pirate worth 100,000,000 Berries…"
"I should have the strength to fight them head-on."
"Even if I can't win, I won't be far off."
His gaze flickered.
Without realizing it—
He had already become this strong.
Just mastering Armament and Observation had multiplied his combat power by dozens.
It pushed him from the "fifty to sixty million" level—
Straight up to the doorstep of the "one hundred million" tier.
And that threshold mattered.
100,000,000 Berries was a massive dividing line.
Any pirate with a bounty over one hundred million—
Was a true monster of the sea.
Even in the New World, they were still terrifyingly dangerous.
And now—
Kai was only four years old, yet already infinitely close to that level.
Who would believe it?
Give it a little more time—
Kai was confident.
He would absolutely break through the 100,000,000 threshold.
That day wasn't far.
As long as he kept training the two Haki types a little longer, it would be enough.
Maybe only a few days.
"My next target is…"
"Vice Admiral-level combat power!"
"And after that…"
"I'll push my current strength toward the two-hundred-million tier!"
Kai's heart swelled with anticipation.
He immediately opened his status panel.
"System. Pull up my attributes."
[Host: Kai]
[Strength: 35.8 (+0.9)]
[Speed: 28.9 (+0.8)]
[Stamina: 37.1 (+1.0)]
[Mental Power: 17.4 (+0.4)]
[Ghost Back Completion: 11.12%]
[Current overall training effect boost: 100x!]
These were Kai's results from the past few days of training.
And beyond that—
There were also improvements to Rokushiki, its advanced techniques, and the proficiency of his Haki.
That was the real reason his strength was skyrocketing.
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