One Piece: My Name is Jack, I'm Very Resistant to Beating

After giving everyone stationed on Onigashima a solid thrashing, the whole "Butt Terminator" incident finally blew over.

Jack, however, turned his attention to Kaido, pestering him endlessly for more sparring sessions. Kaido, as expected, had zero interest in entertaining him.

What did catch Kaido's attention, though, was Jack's decision to ditch the ivory decorations on his face. Not just for aesthetics—those ivory pieces also doubled as scabbards for his curved swords.

Kaido studied Jack curiously before asking in his deep, rumbling voice:

"Jack, without your tusks, where are your swords now?"

"Swords?" Jack scoffed, his tone laced with disdain.

"I was a dumb kid back then, thinking curved swords were something special. The fancier the weapon, the quicker you die. I'm done with them—I want something different."

"Oh?" Kaido raised an eyebrow at this, considering Jack's words. After a moment of thought, he stood up, towering over Jack as he spoke:

"Jack, you've already learned Armament Haki. That means it's time to decide on your weapon—permanently!

"If you get yourself a high-quality weapon and consistently temper it with your Haki, over time it'll become stronger, tougher... eventually, it'll evolve into a weapon you can rely on completely.

"We call such weapons Black Blades in this world. My Kanabo, the Hassaikai, and even Whitebeard's Murakumogiri—both reached that level.

"Unless you plan on fighting barehanded, choose a weapon now. The sooner you start honing it with Haki, the faster it might achieve the status of a Black Blade!"

Black Blade?

Jack glanced at the massive kanabo hanging from Kaido's waist and couldn't help but question it in his head. Most swordsmen in this world used long blades—and sure, swords being called blades made sense—but this guy used a spiked club. How was that a Black Blade? Shouldn't it be called a Black Club?

Imagining himself pulling out a massive black club during battle felt... off. It didn't sound cool at all. Better scrap that idea.

But still...

Jack's gaze shifted to his skill panel, where his Intermediate Swordsman level indicated he wasn't limited to swords. His eyes lingered on Kaido's kanabo.

"Kaido-sama," Jack declared, his tone suddenly resolute, "I want a club like yours! Uh—like your Hassaikai!"

"A club like my Hassaikai?" Kaido gave Jack a considering look, then nodded approvingly.

"Not a bad choice! Compared to those flimsy curved swords, a kanabo suits you much better.

"With your future height and strength, a weapon like this will make full use of your physical power.

"Another advantage is that clubs aren't as tricky to forge as swords. You don't need a master blacksmith to craft one. As long as the materials are top-tier and it's tempered properly, any decent smith can do the job."

Kaido chuckled, stroking his chin.

"Jack, you're in luck. I recently acquired some rare minerals. I'll have two clubs made—one for you and one for Yamato."

A week later, Jack and Yamato stood side by side, staring up at the giant kanabo that reached Kaido's chest. They exchanged bewildered glances.

"Worororo!" Kaido bellowed. "I had to account for you two growing taller in the future, so I made them a little... oversized. For now, use regular clubs or swords for practice. At night, temper these with your Armament Haki."

Jack, however, wasn't paying attention. His gaze had shifted to the harbor, where a group of finely dressed women had gathered. He pointed at them.

"What's the deal with them?"

Among the group were the long-legged ladies who had been with Kaido earlier. One of them even winked at Jack, making him whip his head around in alarm.

What the hell?! I'm eight years old! Stop trying to seduce me, you perverts!

Kaido followed Jack's gaze and shrugged.

"Oh, that? The new castle's finished, so I've set up a pleasure district. Brought them over to staff it."

"A pleasure district?" Jack repeated, deadpan.

You mean a brothel, don't you? Kaido, you're really something. No wonder you're the boss—you're even providing perks for the crew.

As Kaido gestured to two maids by Black Maria's side, he added,

"You two will oversee the district for now. Once Black Maria grows older, she'll take charge."

Jack's jaw dropped. Wait, WHAT? You're turning my future wife into a madam?!

Black Maria simply giggled, covering her mouth.

"Kaido-sama, we agreed—if I'm taking over the pleasure district, I'll also lead all the women in the Beasts Pirates someday."

"Hmph. That depends on your strength," Kaido replied.

"I won't let you down!" Maria said confidently.

Jack exhaled in relief. Okay, good. She's in charge of the women, not just the brothel. But I should assert my claim...

Without warning, Jack marched up to Black Maria, grabbed a handful of her hair, and bit her head.

"Ouch! That hurts, you idiot! Stop biting me! Okay, okay, I surrender! JACK!"

"Get back here, you little brat!" Maria screamed as she chased Jack across the room.

Kaido shook his head, chuckling.

"That kid... he's young, but he knows a lot already."

"Jack, why'd you only bite Maria and not me?" Yamato demanded as she ran after them. "Wait for me—I want to play too!"

Kaido's smile faded.

BAM!

"Ow!"

"Kaido-sama! Go easy on me!" Jack groaned, rubbing his bruised shoulder.

Kaido's voice boomed, silencing them all.

"Listen up! Whether it's a sword, a club, or your fists, mastery only comes through relentless training!

"If your body is strong enough, and your Haki powerful enough, then weapons become secondary. But for now, train hard—together! Supervise each other. Learn from each other.

"When I return, you can ask me questions. Until then, no slacking. Got it?"

"Yes, Kaido-sama..." they mumbled reluctantly.

Jack sighed inwardly. Why bother training so hard when I've got my cheat skills? Just let me set sail, and in a few years, I'll dominate the world!

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