However, despite such a violent impact, Luffy didn't suffer much damage.
Because the moment the ground touched his body, he used his other arm to grab the surface, instantly turning it into rubber material.
The entire ground rippled like waves under Luffy's impact, resembling a giant trampoline, the enormous elasticity launching all the spectators into the air.
Feeling the changes around them, everyone's expressions shifted dramatically.
The next moment.
Seeing this, Bob exerted force through his arm, unleashing tremendous power from within his body.
With a sudden downward push of the hand gripping Luffy's fingers, an immense force was transmitted.
"BOOM!"
A deafening sound erupted as Luffy's head smashed straight through the roof of Onigashima, his elongated skull piercing through the ceiling.
His massive head burst through the rooftop, eyes bulging and tongue flailing, his stretched neck extending absurdly long.
The fighters below, hearing the tremendous noise from above, all turned their gazes upward.
Following the sound—
Instantly, their faces mirrored Luffy's own expression—such a scene was utterly terrifying, more horrifying than anything else in the world.
Eyeballs popped out of their sockets like strings of candied hawthorns.
Nami, Tama, Chopper and the others looked as if they'd seen a ghost.
Meanwhile, Luffy hurriedly retracted his neck, yanking upward, but the hole was too small, causing his face to squeeze together comically.
Then, Luffy exerted more force, abruptly pulling his body back.
'SPROING!'
A crisp snap echoed as Luffy's stretched face recoiled like a rubber band, smacking back into his own skull.
Truly, he'd just slapped himself.
Watching this absurdly comical spectacle, Kaido beside Bob was left speechless.
It felt like watching a cartoon—ridiculous beyond words.
Yet, what puzzled and shocked him even more was Luffy's Devil Fruit abilities.
"Turning anything he touches into rubber—that's a power only awakened devil fruits possess!"
"But this body transformation resembles something only Zoan-type fruits can do?!"
Kaido's brow furrowed deeply, utterly baffled by Luffy's hybrid abilities.
As a Zoan-type user himself, he knew for certain that body enlargement was exclusive to their category.
Yet, the ability to rubberize objects was undeniably a Paramecia trait.
Kaido wasn't alone—Kid, Law, and the others observing Luffy were equally dumbfounded.
"That kid gotten this strong?!"
"What insane potential!"
Big Mom's eyes burned as she stared at Luffy's fully transformed body, muttering in disbelief.
The earlier giant fist had already shocked her, but now this bizzare ability—
That was even more astonishing.
"Bob!"
"What kind of circumstances could produce abilities like these?" Big Mom turned towards Bob nearby, questioning him directly.
For some reason, she felt certain he must know something—
Perhaps because everything Bob had done over the years had always inspired such confidence.
Hearing Big Mom's question to Bob, Kaido also turned his gaze over.
Like Big Mom, he couldn't understand how a single Devil Fruit could possess two attributes.
"It's the Hito-Hito no Mi, Model: Nika!" Bob replied calmly.
Though his tone was flat, it carried an undeniable certainty.
Upon hearing Bob's words, Kaido visibly froze.
Not because he doubted the truth of Bob's statement, but because he was shocked by the mention of the word "Nika."
Big Mom's expression mirrored Kaido's exactly.
Neither spoke further, instead turning their attention back to Luffy on the battlefield.
At that moment, smoke was rising from his head as he hunched over, his body trembling uncontrollably.
The next second.
The flames atop Luffy's head suddenly extinguished, his white hair fading back to black.
Moreover, his body rapidly aged, like rubber melted by the sun, losing all elasticity and sagging limply.
In an instant, it was as if all his strength had been drained.
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He transformed into a shriveled old man, collapsing to his knees.
This sudden turn of events startled Kaido so much that he blurted out,
"Who the hell are you?!"
Even Bob on the side shook his head slightly, though his expression remained largely unchanged.
Meanwhile, those on Luffy's side, seeing him suddenly reduced to such a state, widened their eyes in shock as if witnessing something unbelievable.
"Straw Hat!"
"Luffy!" Kid, Law, Zoro, and Killer all shouted urgently.
At this moment, they truly felt their own uselessness—despite being pirates who had fought alongside him just moments ago.
Yet now, Luffy was battling desperately, even exhausting his life force to the point of becoming an old man.
Meanwhile, they had already been defeated, lacking even the strength to rejoin the fight.
To them, this was nothing short of humiliation.
But Luffy on the battlefield could no longer hear his comrades' cries, nor did he have the energy to notice their expressions.
With the absence of the Drums of Liberation's rhythm, he lost his fighting spirit and muttered dejectedly,
"I'm gonna die… I've used up too much!"
Hearing this, Kaido spoke plainly,
"Go in peace."
"You've fought admirably until now!"
"This country will remember everything you've done!"
These words came from Kaido's heart.
During Luffy's battle with Bob, his performance had earned Kaido's respect.
And in this moment, Kaido couldn't help but admire this rookies.
At such a young age, he already possessed the strength to challenge an Emperor—his potential was undoubtedly immense!
Yet the next instant, Kaido's expression stiffened.
"Who cares about that stuff?!"
"Once you're dead, everyone just turns to bones anyway!" As he spoke, Luffy let out a giggle.
The next moment.
Struggling, Luffy forced himself back to his feet, muttering the names of his comrades all the while.
Tama, Yamato, Kin'emon, Zoro, Sanji, Nami, Robin, Chopper—
They were his reason to keep fighting.
With his fighting spirit reignited, he returned to his Nika form!
His body began to turn pale, a clear sign of awakening.
Then came the sounds of the drum beating again.
"Louder, let them hear the sounds of freedom!"
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I release a new whitebeard scientist fic : One Piece : Scientist of Whitebeard Pirates
Go read it!