Franky let out a strange, cacophony laugh in response to Luffy's surprise.
"Hmph, I have more than just these abilities!"
As they were talking, the sound of a machine gun firing came from Franky's shoulder, the joint bent backward, and two cannon holes suddenly appeared on Franky's shoulder.
Immediately, the firepower pouring out from the cannon barrels struck in the direction Luffy was located.
"That was awesome! But bullets are useless against me."
Despite his admiration for Franky, Luffy did not underestimate him in the slightest.
Taking a deep breath, Luffy's stomach suddenly swelled up, and his expanded body blocked all the bullets that Franky was attacking him with.
"What other tricks do you have up your sleeve? Show me everything, I want to see what makes you, this robot, so different."
As soon as Luffy finished speaking, Franky snorted coldly and threw a punch straight at the person in front of him.
Seeing this situation, Luffy showed no fear whatsoever.
He stretched out his hands to try and block the attack, but Franky, seeing this, smiled with a triumphant grin.
Sure enough, just as Luffy's hand was about to touch Franky's attack, an unexpected situation occurred.
Suddenly, an acceleration device appeared behind Franky's mechanical arms, and the jet of air pulled Franky's body to the side.
This distance was just enough to avoid Luffy's hands blocking his Luffy, but the force from the mechanical arm did not decrease at all!
This punch landed squarely on Luffy's head, carrying an extraordinary amount of power.
With a single punch, Luffy was sent flying over a hundred meters away, crashing into a wall and cracking it.
Fortunately Luffy's body is quite resilient due to eating the Gum-Gum Fruit.
If it were an ordinary person, they would probably have been knocked unconscious by Franky's attack, or even killed if they were physically weaker!
"A robotic arm! You actually modified your own arm into a machine!"
Luffy stood up without the slightest hint of displeasure on his face; instead, the light in his eyes shone even brighter.
"I didn't expect you to be such a good punching bag. You'd be great as my punching bag, kid. I find you quite pleasing to the eye!"
Franky was slightly surprised to see Luffy stand up as if nothing had happened after taking a punch from him, with the fanatical look on his face showing no signs of waning. However, he still expressed his admiration for Luffy.
Lu Yu witnessed the entire scene before him, and anyone who knew what Lu Yu was thinking would be astonished.
At this moment, massive calculations were already underway in Lu Yu's mind, frantically analyzing the various functions within the modified human's body.
For Lu Yu, the abilities possessed by the cyborg in front of him were far easier to calculate than those possessed by ordinary people.
This guy has never eaten a Devil Fruit, yet he possesses this strange power, which is apparently related to his physical modifications.
"Has the world's technological advancement reached this level? That's quite unexpected."
"However, this cyborg's body still has some flaws. His back still seems to be made of flesh, while his front looks like it has been modified to be as tough as steel, allowing him to withstand most impacts and even be immune to bullets."
Lu Yu frantically calculated the data in his mind, listing out each of the advantages and disadvantages one by one.
" Luffy, step back and let me try this guy out."
Seeing Luffy's eagerness, Lu Yu stopped him and instead went to Franky's side.
When Franky saw the plain-looking man before him, who showed no aura whatsoever, a strange expression appeared on his face.
But before he could utter a sarcastic remark, he found himself as if his body was bound by some kind of restraint, unable to move at all.
"Hmm, the arm modifications are pretty good, but with such large arms and fingers, it's bound to be a bit inconvenient to perform some delicate movements."
Before Franky could react, Lu Yu's hands were already on his modified mechanical arm, gently stroking and examining it.
"Hey! What the hell is this? Why can't I move? What are you doing?!"
Unlike Franky's surprise, Lu Yu didn't say much and continued the examination.
"Your power source seems to be powered by cola, right? Come on, let me release the restraints. Show me your strongest attack. If your moves pique my interest, I might just be able to modify your equipment out of curiosity."
As soon as Lu Yu finished speaking, Franky felt as if his body had become lighter, and the previous feeling of blockage completely disappeared.
He abruptly stepped back and looked at the man in front of him, a sense of unease rising within Franky.
Based on how easily he was subdued just now, and the fact that the Straw Hat Pirates treated him with such respect, Franky understood that this guy was definitely not as simple as he appeared on the surface.
"Damn it, how dare they underestimate me! Full power! Wave Cannon!"
With a loud shout, a strange light flashed in Franky's eyes, and his chest thrust forward, revealing a dark cannon hole that slowly emerged from his mouth.
Within that, intense light condensed, and upon seeing this, Lu Yu's face showed an expression of approval, and he nodded slightly.
"It seems powerful enough, but it's still missing something..."
Before Lu Yu could finish speaking, the cannonball in Franky's mouth had already been fired.
Surprisingly, the shell was like violently compressed air; it was incredibly powerful, yet completely invisible to the naked eye.
"You brat, you think you're so tough in front of me? This time, I'll probably beat you right into... huh?"
Franky was about to say something when Lu Yu gently clenched his right hand in front of him, and the space in front of him seemed to freeze instantly.
The cannonballs he had fired seemed to be like children's toys in front of Lu Yu, frozen in mid-air.
Then, Lu Yu flicked his right middle finger, and the cannonball flew backward along its original trajectory, even faster!
"What the hell?"
Franky was caught off guard by this scene. The terrifying air cannon struck his chest, causing his steel-forged chest to cave in slightly, and he became somewhat listless.
"Hmm, not bad. Our feud ends here. You all have no objections, right?"