This left people stunned.
He's practicing again?
What on earth is going on with this guy?
Could he really close the gap between himself and Kaido with just this practice?
Is it even possible for someone to defeat Kaido by improving their strength through sudden training?
People were skeptical.
But they couldn't help but entertain some bold doubts in their minds.
Straw Hat Luffy isn't an ordinary person.
Can a normal person, in the middle of a battle, develop Observation Haki to the extent that he can see the future?
Luffy had previously mastered Observation Haki to the level of Katakuri during their fight, and defeated him.
Luffy defies common sense.
But Kaido isn't Katakuri.
No matter how extraordinary Luffy is, he can't defeat Kaido simply by practicing.
Can what he learns really be enough to beat Kaido?
People didn't believe it at all.
Kaido scoffed even more.
Emission to knock him out?
Not only has Luffy not mastered Emission yet, but even if he did, it would be useless.
Such a technique would be merely a scratch to him.
To truly harm Kaido, Luffy would need to master more advanced techniques beyond Emission.
[Internal Destruction]
That's the only way to injure him.
But even if Luffy mastered this, it would only injure him, not be enough to defeat him.
And this kid hasn't even mastered Emission yet.
Kid, you're still far from being a top powerhouse.
Still think you can challenge me? My Thunder Bagua—can you withstand it? Kaido smiled disdainfully, exuding confidence.
He paid no attention to Luffy at all; his only concern was the memory-loss Big Mom and the trouble she might cause. How much trouble would this woman be?
"When Luffy was practicing, Tama and the others also arrived at the prison.
At this time, Queen was enjoying a sumo game in the prison. The collars around the necks of prisoners who were knocked out of the ring would explode.
Luffy and Hyogoro were guarding the ring.
Big Mom barged in, wanting to share soup with everyone—soup was also Queen's favorite. Upon hearing that Big Mom was trying to take his food, Queen fought with Big Mom on the spot.
As a result, he was knocked down by Big Mom twice.
Though Big Mom had lost her memory, her brute strength and destructive power remained.
However, when she found the soup jar, it was empty.
It turned out that Luffy had secretly eaten all the soup before Big Mom arrived. Upon learning the truth, Big Mom immediately began fighting Luffy in the prison.
Standing in the small arena, Big Mom's titan-like frame had little room to maneuver.
Luffy was restrained by a sea stone collar and couldn't use his abilities. If he was knocked out of the ring, the collar would explode.
But Big Mom didn't care. She aimed to knock Luffy and Hyogoro out of the ring.
At this critical moment, Luffy actually used the advanced Armament Haki technique, Internal Destruction, which was even beyond Emission and beyond Hyogoro's mastery.
He destroyed the collar from the inside, removing the collars from both himself and Hyogoro before the explosion, averting the crisis."
The events unfolded completely unexpectedly.
They had anticipated that after Tama brought Big Mom to ally with Luffy, they would free the prison and attack Kaido together.
Instead, Big Mom fought with Queen of the Beasts Pirates and defeated him in two hits. The strength of the Four Emperors was indeed terrifying.
Kaido defeated Luffy with one attack, and Big Mom defeated Queen with two. The disparity in power was immense.
What was unexpected was that after arriving, Big Mom, who thought she was helping Luffy, ended up fighting him.
She nearly knocked Luffy out of the ring, causing the collar to explode.
What was even more outrageous was that Luffy used the advanced Armament Haki technique, Internal Destruction—a skill even Hyogoro didn't know.
What kind of monster is he?
People were speechless.
They had been thinking that even if Luffy practiced Emission, it wouldn't be enough to significantly improve his strength.
Yet, he skipped directly to mastering an advanced technique that even his mentor didn't know.
Every development had exceeded expectations.
This was utterly nonsensical.
The disdain on Kaido's face froze.
What the hell is this?
He had just dismissed the idea that Luffy could challenge him with Emission.
And now, Luffy had used Internal Destruction to destroy the collar—a technique considered the pinnacle of Armament Haki.
Mastering this was equivalent to being a Grandmaster in Armament Haki.
Even against him, it could inflict damage.
Had he made a mistake?
Kaido, who had initially been dismissive, now felt a sense of unease. What kind of monster is this kid?
Kaido was alarmed.
This kid's strength had improved far too quickly.
Just a short while ago, Luffy had barely managed to defeat Doflamingo. What level was that trash Doflamingo?
Now, Luffy had gone on to defeat Katakuri in just a few days. What level is Katakuri?
After defeating Katakuri, Luffy's Observation Haki had also reached the same level as Katakuri's in a remarkably short time.
And now, in only a few days in Wano, Luffy had further advanced his Armament Haki to the highest level.
This kid had mastered skills that others couldn't learn even after years or decades of training.
Even Kaido was shocked by Luffy's rapid growth. Such progress was beyond anything he himself could achieve.
Kaido wondered how long it would take for Luffy to surpass him at this rate.