"Hah? Stop boasting, brat!"
Byrnndi World laughed in extreme anger.
"You think just because you blocked my casual attack you can act arrogantly?"
As he said this, he casually tore apart a nearby cell's bars and pulled out two chains from the skeletal remains inside.
At the end of each chain hung a fairly large iron ball… the kind specifically used to restrict prisoners' movement.
For Byrnndi World, the user of the Moa Moa no Mi, any object, even a piece of rubble, could become a lethal weapon in his hands.
"Try this!"
Showing no respect for his former cellmate's bones, Byrnndi World casually snapped the leg bones and, gripping a chain in each hand, violently swung the two iron balls into the air like yo-yos.
Then, his Devil Fruit's Ability activated, and the iron balls' volume and mass rapidly multiplied.
The iron balls, which could already be considered 'deadly weapons', instantly transformed into meteor hammers capable of destroying a large warship.
It's worth mentioning here that perhaps because they needed to hold individuals with large size like the [Colossal Battleship] Sanjuan Wolf, the ceiling height on Level 6 was quite generous.
At least it was enough for Byrnndi World to swing his meteor hammers.
The only drawback was the relatively narrow corridors. Under Byrnndi World's indiscriminate destruction, both cell doors and walls were obliterated as if they were dry weeds and rotten wood.
The iron balls, now the size of a ship and covered in black Haki, crashed towards Naruto's direction like giant meteors.
The balls didn't seem particularly fast, but that was just an illusion caused by their immense size.
"Although it's a bit cheap, but to avoid completely destroying this place-"
Naruto had no intention of dodging. Instead, he charged towards the descending giant iron balls.
[Ultralight-Weight Rock Technique]
The moment Naruto's palm touched the iron ball, its weight was reduced countless times.
Even so, it only returned to the mass it should have had at that volume.
But that was enough.
Naruto's hand, like a dragon's claw, dug deep into the iron ball. The layer of Haki covering its surface was like nothing before him.
Byrnndi World watched helplessly as his Haki-covered weapon was destroyed, and then a tremendous force came from the direction of the iron ball.
"Come here!"
With Naruto's shout, Byrnndi World was pulled towards the opposite side by the chain like a cannonball.
But he wasn't panicked. He simply applied the Moa Moa no Mi's ability to himself, increasing his original strength by several dozen times.
-It wasn't that he didn't want to amplify his strength a hundredfold… it was just that his body, which had endured decades of freezing, couldn't currently withstand a hundredfold increase.
If he insisted on doing so, the enemy might not die, but he would likely fall apart first.
Bang! Bang!
Using two quick Geppo to resist the pulling force, Byrnndi World's figure landed back on the ground.
Then he decisively swung the other iron ball horizontally, clearing all objects within a 180-degree field of view indiscriminately.
"Hundredfold Hammer!"
The other iron ball shot towards Naruto at supersonic speed, and during this process, its speed continued to increase under the amplification of the Moa Moa no Mi.
Soon, the surface of the iron ball even generated high temperatures from friction with the air, and the chain could no longer withstand the excessive pulling force, snapping in the middle.
But this was within Byrnndi World's expectations.
Just before feeling the chain about to break, he slightly adjusted its direction so that the iron ball, even after breaking free from the chain, would still hit Naruto at an angle.
In response, Naruto's method was to raise his hand and gather strength.
The terrifying power transmitted to his fingertips through the vibration of every muscle fiber in his body. Armament Haki, so dark it was almost purple, completely covered his fist.
Boom!!
It was like an underwater volcanic eruption. The entire prison shook again from the terrifying impact. There was no hiding what was happening on Level 6 now.
More than half of the hundredfold amplified iron ball had turned into red-hot molten iron, now flowing down from Naruto's body like fringe.
It showed just how much terrifying force was contained in that single strike.
Sizzle!
Suddenly, the molten iron dripped onto the haori tied around Naruto's waist, burning a large hole in it.
"What a shame, I quite liked this outfit-"
Tearing off the clothes and throwing them to the ground casually, Naruto ignored the still-glowing molten iron residue on his body and transformed into a black and purple streak of light, teleporting right in front of Byrnndi World.
"Wha-"
Byrnndi World could amplify objects and his own speed a hundred times, but that didn't mean he could increase his reaction speed a hundredfold.
This resulted in him only being able to perform simple linear movements whenever he used the hundredfold speed increase.
Hum!
Like the whimper of some deep-sea creature, Naruto's fist, now fighting seriously, showed no mercy, heading straight for Byrnndi World's chest.
Looking closely, one could see that the objects around Naruto's arm seemed to be slightly 'warped'.
When strength reaches a certain level, you no longer need so many complex fighting techniques.
Every punch and every kick of yours can be a lethal move.
Unlike his fight with Golden Lion, Naruto's physical fitness had long surpassed the limits of mortals in both the One Piece World and the Ninja World, heading straight towards the level of cosmic beings.
At the last possible moment, even before he could react consciously, Byrnndi World's combat instincts made him amplify his own speed.
It was this combat instinct that saved his life.
Although he was still hit, fortunately, it didn't strike a vital spot.
Naruto's fist wind was like some invisible monster, and just grazing Byrnndi World was enough to break his entire arm and shoulder on one side.
"Ugh!"
Even an old pirate like Byrnndi World couldn't help but grunt when faced with such bone-shattering, tendon-severing injuries.
His arm now hung limply against his body like a lump of rotten meat.
He lost his balance due to inertia and the injury, crashing into the distant ruins and raising a cloud of dust.
Seeing this, Naruto retracted his fist and began taking out spare clothes from his sealing space to change into.
The outcome was decided, the fight was over.
To be honest, Naruto was somewhat disappointed.
He had originally anticipated a fight similar to the one with Golden Lion, but he didn't expect the other party's defense to be much lower than he imagined.
'Or was it that my own strength had increased too quickly?'
It proved that even with a hundredfold amplification, Byrnndi World lacked a sufficiently robust physique to wield such power properly.
If it were Garp, he could probably handle a hundredfold increase in speed while simultaneously managing a hundredfold increase in strength.
Perhaps even the current him couldn't deal with an old monster like that.
However, Byrnndi World seemed unable to accept this reality.
"Ugh... Ugh! Don't you dare leave!"
He pushed away the rubble fallen on him, ignoring the pain from half his body, and forced himself to stand up.
"What? Still want to continue?" Naruto, now fully dressed again, just shook his head and then pointed, "With your ability, you should be able to easily handle the little thing in your neck, right?"
Naruto had 'seen' the object inside the other man from the moment they met.
As the user of the Moa Moa no Mi, while Byrnndi World couldn't bestow the amplification on other living beings, he could amplify his own attributes.
By amplifying his defense a hundredfold, even an explosive blast shouldn't be able to kill Byrnndi World.
"Raaaaaagh!"
Byrnndi World didn't respond to Naruto, he probably didn't know how to.
Perhaps unable to accept this reality, Byrnndi World roared as he stood up, using his remaining arm to frantically hurl rubble, bricks, and tiles at Naruto.
Those stones, enhanced by Haki and his Devil Fruit's Ability, instantly turned into a terrifying hail of projectiles.
But these attacks were nothing but minor annoyances to Naruto. He easily batted the stones away as if swatting a few flies.
It was at this moment that the sound of another footstep landing mixed with the sound of falling stones.
"How pathetic, Byrnndi World."
The figure of Douglas Bullet, no less imposing than Byrnndi World's, emerged from the dust.
Hearing this, Byrnndi World immediately glared at Bullet with bloodshot eyes.
"As an old guy who's already been eliminated, just exit the stage properly! This is no place for you to take a stroll."
"I can't just let that comment slide."
Just as Bullet's words fell, the crimson figure of Patrick Redfield emerged from the shadows.
If one ignored the wrinkles on his face, he truly looked like a vampire noble straight out of a story.
Seeing everyone's gaze converge on him, Redfield showed no change in expression. Instead, he elegantly bowed slightly towards everyone.
"It seems I haven't missed this gathering."
Seeing that the three strongest auras from his perception had now all gathered before him, Naruto abandoned the idea of going to find Ace first.
With the commotion just now, the prison authorities would definitely notice something was wrong unless they were deaf. Time was running short.
"Ah... It might sound a bit arrogant, but I'm short on time. How about you three come at me together?"