Idle Level-Up in One Piece Chapter 191: C-Rank Ninjutsu: Just a Normal Slash!

Klein's statement hit deep into the emotions of numerous individuals.

This was particularly true for parents such as Instructor Carter and Rampaging Bear Lincoln.

"I… I'm broke!!" The face of Rampaging Bear Lincoln twisted in agony.

He had poured nearly all his funds into bodybuilding aids. On top of that, four daughters "beautiful as flowers" drained whatever remained…

How much money could someone like him possibly save?

Instructor Carter pulled at the heartstrings. "Klein, my boy, I'm your teacher! Won't you give me a discount?!"

"12% off. That's the maximum I can offer!" Klein answered, acting as if it pained him to say so.

Why couldn't these folks grasp the true worth of a scroll?

In a xianxia fantasy realm…

Such items would sell out in seconds!!

No proper second-gen cultivator would venture out without an ancestral lifesaver or secret weapon talisman!

Lacking one only proved your clan or sect had no real legacy!

"…Alright. I'll buy one." Instructor Carter clenched his jaw, steeling himself as if severing his own arm.

"Hold on."

Fleet Admiral Oharden abruptly called out, lifting a hand to halt Carter. "Klein, we know Kong glimpsed your 'S-Rank Ninjutsu: Divine Departure' scroll. But the rest of us haven't. Just how mighty is it…?"

"Exactly! I haven't witnessed it personally," Carter chimed in, eyes sharpening. "What if it's counterfeit? You can't peddle something this big without a demonstration first!"

Marine officers around them voiced their agreement in rapid succession.

"He's spot on! We trust your power, Klein, without doubt. But ninjutsu from scrolls? That's unfamiliar territory. Show us a display!"

"We're all eager for that sword move that wounded Golden Lion Shiki in one strike!"

"If it truly packs that punch, grabbing one for protection seems like a smart investment."

"I've heard Klein's blade skills match or even exceed his hand-to-hand prowess. Yet we missed it in the previous battle!"

"Three years back, he was dubbed the Marines' top swordsman. After these three years, let's see his progress!"

"······"

Suddenly, every gaze fixed on Klein once more. Dozens of eyes burned into him, filled with eager expectation.

He recognized the challenge. However…

A bit of flaunting wouldn't hurt. Demonstrating the scroll's power directly could skyrocket his sales.

Klein felt no concern over flooding the market. As the only vendor, the steep cost ensured just an elite handful could purchase.

A subtle grin tugged at his mouth. "We won't use the 'S-Rank Ninjutsu: Divine Departure'—too much Haki could knock you out. I'll demo a basic flying slash instead. Nothing but an ordinary slice!"

While talking, he drew a scroll from inside his coat.

Clearly inscribed on it: 'C-Rank Ninjutsu: Just a Normal Slash.'

"C-Rank Ninjutsu?" Lincoln craned forward, eyes bulging. "Don't think I'm clueless about rankings. C-rank is…"

He tallied on his fingers. "Three tiers under S!"

Oh, fantastic.

Now he resorted to kid-level finger counting.

"Klein! Don't you dare fool me with this low-tier C-rank junk!" Carter growled, his expression souring.

Yet Oharden wagged his head. "Never dismiss Klein's so-called 'ordinary' strikes. Three years prior, his flying slash… it's etched in my memory vividly."

Its release had left all in awe.

"That cut… carried lethal edge," Kong stated briefly. In his thoughts…

Blast it, those flashbacks surged once more.

He sensed it vividly.

Maintaining composure grew tougher. Especially after observing Klein's bout with Lincoln up close—he bordered on fixation.

Whenever Klein's name arose, those intense recollections flooded in, shattering his concentration.

Ever restless, Lincoln slapped Klein's shoulder. "Hurry up and demonstrate! I need to check if your 'normal' hit lives up to the hype!"

"Chill out. You'll be impressed," Klein shot back with a assured grin, utterly composed.

He strode to the ship's prow, hopped lightly, and perched on the dome of a wrecked cannon.

He hurled the scroll skyward, where it snapped open sharply. In midair, it ballooned to dozens of times its original size.

Strange, archaic runes sprawled over its face.

Klein had mimicked Daoist talisman methods in its creation—genuine doodle-magic. Though not perfectly authentic, it easily deceived the untrained eye.

All onlookers shared the thought: 'This appears genuine!'

With hands clasped behind, Klein boomed, "Pay attention. One swing—and I'll cleave the ocean!"

"One day… I'll carve through heaven's doors!"

He posed grandly, shouldering cosmic burden.

Marines on every nearby vessel gawked at the scroll overhead, eyes unblinking.

The scroll ignited, radiating a piercing emerald radiance. Instantly, the sea drowned in verdant brilliance.

Waves gleamed like flawless jade—crystal clear, sparkling, otherworldly.

As if an endless emerald field stretched forth.

A stunning 'Forgiveness Green.'

Shiiing!!

A vivid green ray erupted from the scroll—stretching hundreds of meters, fiercely honed and dense.

A flying slash, vividly menacing, materialized in the air.

Shocked exclamations rippled through the armada.

The slash ripped across the heavens—crashing into the sea.

Before their astounded stares, the waters divided cleanly. To either side, waves surged apart, creating twin walls of roaring surf.

The ocean itself wailed:

"I've been split!!"

The sight slammed into them like a thunderbolt.

"Damn that kid! He's toying with us! You call that C-rank ninjutsu? A simple slash?!" Veins throbbed on Lincoln's brow. "You rascal!!"

"That blade work… it's at the pinnacle, right!?" Sweat beaded on Carter as he fixed on Klein's silhouette. "If this counts as normal, I shudder at his full-force blows!"

"I refuse to swallow this 'ordinary slash' nonsense. Klein's pulling our leg once more! Not this time!!"

He'd been duped by Klein repeatedly in the past. Now, nothing would sway his doubt.

A slash parting the sea—and he claims it's routine?

Who'd buy such a tale?

Do we seem that gullible???

Kong's eyes trembled as he whispered: "Across the entire Marines… solely Klein achieves this—body techniques, sword arts, Haki, Devil Fruit control all at horrifying peaks."

"He's far too perfect."

Silently, he balled his fists, released… balled again.

Once more.

And repeatedly.

Clearly, his mental equilibrium was crumbling.