Idle Level-Up in One Piece Chapter 189 189 – Kaido: “Ohyaji is the big monster, I’m the little monster!”

Kaido planted his hands on his hips, thrusting his chest out proudly.

"Ohyaji's right—Haki is the power that surpasses everything!"

"Worororororo—!"

"One day, I'll train my Haki to the absolute strongest level!!"

"Heh..." Shakky blew out a cloud of white smoke from her red lips, flashing a seductive smile.

"Big ambition for a little brat. But if you want to be the strongest, you'll have to surpass Klein-sama. That sounds a bit... unlikely."

Forget surpassing Klein—he'd remain unbeatable forever.

Others had no clue, but she and Gloriosa knew the truth well. Don't get tricked by Klein's routine of guzzling booze, throwing wild parties, and chasing skirts.

He hardly practiced, resembling no Marine at all—more akin to a lazy Celestial Dragon seeking endless fun.

Yet that man's physique...

It strengthened mysteriously on its own. He frequently "overpowered" both of them until they pleaded for mercy.

Kaido paused briefly, then scratched his head horns with an adorable look.

"Eh? Yeah, you're right. Then I'll aim to be the world's second strongest!"

"Ohyaji's clearly number one!"

Os couldn't help but roar with laughter. "With Kaido's tough body, he's destined to turn into a beast someday..."

But when monsters came up, Os's chuckles died down.

He scanned the area—monsters everywhere.

With his average gifts, comparison was impossible.

Initially, spotting the kid's horns, he figured—like Loki—Kaido carried ancient giant lineage.

But true monsters...

The ultimate monster...

Os gazed at the distant wrecked island, where Klein loomed among the debris, and whispered,

"That's gotta be Mr. Klein..."

No one out-monstered Klein—not Loki or Linlin. The divide was vast as sky and soil!

"Worororororo—!!" Kaido beamed, bursting with arrogance.

"Ohyaji's the huge monster, I'm the mini one!"

Had Klein overheard, a solid "Fist of Love" would've smacked his skull!

Talk normal for once!?

Meanwhile, Loki pondered deeply.

"Ohyaji just unleashed Hasshoken's supreme move…"

"Incredible!"

"And he merged Hasshoken with Demonic Flame Kick…"

Three years into Hasshoken practice, its hidden art eluded him still.

'Hasshoken... perhaps not confined to fists,' Loki reflected, sensing a near-breakthrough—yet it faded, just beyond grasp.

In his thoughts, that enormous war hammer—Iron Thunder—appeared.

Loki eyed his limbs and mused,

'A bit more time… then I'll beg Ohyaji for a swing with Iron Thunder.'

His veins surged with excitement. Pairing Hasshoken with Iron Thunder would unleash horrifying might.

"An Admiral promotion ceremony has to be super lavish and awe-inspiring, yeah?"

Newgate inquired, envy shining in his eyes.

Becoming a Marine Admiral himself might simplify safeguarding his home.

"Naturally," Gloriosa giggled.

"Marine Admirals represent the Marines' top might. Every paper will cover it for sure!"

"Klein-sama's name will echo over the whole ocean!!"

"Recognized by everyone, dreaded by all!"

Admiration gleamed in her gaze.

"Plus, Klein-sama's the youngest Admiral ever."

Shakky chimed in,

"Yet Marine Admirals bear greater burdens too. So young, Klein-sama will draw pirates itching for a fight."

Pirates chase glory at any cost.

"Mamamama…" Linlin boomed with laughter, brimming with assurance.

"What's to fear? We'll smash those pirates senseless before Klein stirs a muscle!"

Kaido raised his fist—now rivaling an adult's—pumping it wildly.

"Right! Bring as many as they want, we fear none! One punch apiece!"

Back on the island—

Rampaging Bear Lincoln strode alongside Klein toward the Marine battleships docked by the shore.

A weird look crossed Rampaging Bear's face.

"Klein, your power's ridiculously balanced. Haki and hand-to-hand alone outdo me... without drawing your blade or Devil Fruit…"

"You're an absolute freak!"

"Oi—" Klein snapped irritably.

"Stop calling me a freak!"

Lincoln waggled his brows, smirking.

"C'mon, spill it. Just us bros—how do you train?"

"You sure you wanna know?"

Lincoln bobbed his head keenly, curiosity sparkling in his eyes.

Of course—he burned to learn Klein's rapid rise to power.

Three years back—

At Marine Academy, their first clash, he could've squashed Klein single-handedly.

Ground him flat till he gleamed.

Today...

Reversed—he got flattened.

Damn!

He regretted not capitalizing then.

Lincoln replayed the recent fight—Klein's finishing combo haunted him.

A real freak... excels at it all!?

"If you insist on knowing," Klein grinned, "send 5 billion first. Let's see if you're loaded."

Lincoln's expression soured.

"Five billion!? That's straight-up theft—!"

"Five billion's merely the starter. True secrets? At least 100 billion."

"One hundred billion..."

Lincoln quit instantly.

Still, Klein shared a tip:

"Got free time? Go smash some mountains."

"Smash... mountains?" Lincoln's eyes widened. "Does that actually help?"

Klein recalled Garp's anime drills—pummeling warships, then peaks. Kuzan's training flashed too.

"Test it yourself. No Haki, though."

Lincoln agreed.

"I'll try it soon, check if it pays off."

They quickly arrived at the island's brink—

And vaulted onto the warship in sequence.

As Klein hit the deck, nearby Marine officers' stares shifted dramatically.

Admiration and awe filled their eyes—like worshippers below a deity on its peak!

Previously—

Klein was merely a Vice Admiral. Formally equal, though shorter on tenure and ties.

Now?

He'd defeated veteran Admiral Rampaging Bear, aced the test.

Marine Admiral—his title secured.

Vice Admiral to Admiral gap?

Enormous.

"Klein, congrats!" Instructor Carter grinned broadly, cheeks red with joy.

"Three years, and you're this mighty. You've stunned your old instructor!"

Kong chimed,

"I never dreamed you'd outpace us all so fast…"

"Admiral before me. Time to address you as Admiral Klein!"

Emotion swelled in him.

"Oh, decided on a code name yet?"

"Code name?" Klein's eyes widened. He got the reference.

Old-era Admirals bore names like Black Arm, Steel Bone, Strategist.

New age favored beasts: Akainu, Kizaru, Aokiji, Green Bull, Fujitora…

Admiral hopefuls matched too.