One Piece: The user of the Nen-Nen Fruit, who overturned the sea.

"Roy."

Kaido pointed at the unconscious Luffy, his face filled with displeasure.

"Is this kid really as amazing as you say?"

"This kid is not qualified at all."

"He collapsed before I even finished warming up."

He took a swig of wine, wiped his mouth, and continued:

"Didn't you say that after he awakens, he'll let me beat him to a pulp?"

Is that all the skill you've got?

He was down after two blows; he didn't even last as long as that green-haired swordsman.

Roy didn't answer directly. He walked over to Luffy, reached out and pinched the muscles on Luffy's arm.

He then used his Observation Haki to sense the flow of Haki within Luffy's body.

The strength of Armament Haki has indeed increased significantly compared to two years ago, but it is still in the hardening stage.

It can cover most of the body and can be maintained for several minutes in Gear Fourth form, but in essence, it is just using Haki as a layer of armor.

It's more than enough to deal with ordinary enemies, but it's completely inadequate against monsters like Kaido.

This kid needs to learn the Ryuo Sakura technique.

In the original storyline, Luffy learned Ryuo from Hyogoro in Udon Prison.

This is an advanced technique that uses overwhelming power to infuse the enemy with destructive force.

Only by mastering this can he truly harm Kaido.

Only by truly injuring Kaido can Kaido be made to fight seriously, thus forcing the awakening of Nika's Devil Fruit.

"Kaido."

Roy stood up, dusted off his hands,

"Throw him into Udon Prison."

Kaido paused for a moment, the gourd of wine hanging in mid-air:

"Rabbit Bowl? That quarry?"

"right."

Roy nodded.

"Many Wano Country samurai who rebelled against you back then are imprisoned there."

Let this kid grow stronger in this desperate situation.

Roy paused, then added:

"And isn't that red-haired Kidd there too? Perfect, we can have a table together."

Kaido thought for a moment, then suddenly grinned.

He understood Roy's meaning—not to kill him now, nor to let him go, but to lock him up and let him continue to hone himself in the harsh environment of prison.

"OK."

Kaido waved his hand and roared at his subordinates.

"Put those two brats in the prison cart and take them to Rabbit Bowl! Tell that fat bastard Quinn to keep a close eye on them!"

The henchmen hurriedly responded and carried Luffy and Zoro onto the prison cart.

Roy walked to the prison van and took out two pairs of sea stone shackles from his pocket.

These shackles were specially made by Vegapunk for him, and their purity is a level higher than that of ordinary seastone handcuffs.

"Put this on."

Roy threw the shackles to the guard.

"These two guys are not ordinary prisoners."

Especially the one wearing the straw hat—his Devil Fruit ability is very special; ordinary seastone handcuffs might not be able to completely suppress it.

The guard respectfully took the handcuffs and snapped them onto Luffy and Zoro's wrists.

Luffy frowned in his unconscious state, instinctively trying to break free, but the sea stone handcuffs made his body as limp as a lump of mud.

"With Queen guarding the Udon, nothing can happen."

Kaido snorted and picked up the Eight Precepts again.

"That fat pig may be unreliable, but he's still pretty good at fighting."

Besides, we still have over five hundred soldiers, more than enough to handle two prisoners handcuffed with sea-stone.

Roy almost burst out laughing inside.

Five hundred soldiers? Quinn?

In the original storyline, Luffy still managed to turn Udon upside down even while wearing handcuffs.

Now, if we add Zoro and Kid to the mix, that place will be in chaos very soon. But Roy won't say that out loud.

"Then it's settled."

Roy turned around and used his telekinesis to lift his body.

"Let's go back to Ghost Island. There are some things I need to discuss with you."

Kaido transformed into a blue dragon, and the two flew side by side toward Onigashima.

In the air, Roy glanced back at the City of Flowers.

The prison van was heading towards Udon along the winding mountain road. Luffy's straw hat was carelessly tossed into a corner of the van by a guard, the bloodstains on the brim gleaming dark red in the moonlight.

"Grow up quickly, Luffy."

Roy withdrew his gaze.

"The final battle cannot be fought without you."

Oni Island Grand Hall.

When Kaido landed, he transformed back into human form, strode toward the throne, leaned the Eight Precepts aside, grabbed the gourd of sake, and took a big gulp.

The liquor dripped down his chin, splashing onto the ground and creating tiny bubbles.

"What about Quinn?"

Kaido put down his gourd of sake and wiped his mouth.

"Quinn is really wasting his time guarding the rabbit bowl."

"I heard that guy's got a lot of new weapons lately. Should we call Quinn back?"

Roy sat down opposite him and shook his head:

"No need."

"And how's the training progress of your artificial Devil Fruit army lately?"

"good."

Kaido grinned, revealing a mouthful of sharp teeth.

"Although Doflamingo's arrest has cut off the supply, there is still a lot of stock that we had accumulated before."

There are currently about three thousand ability users capable of fighting, scattered across various strongholds.

"Three thousand people."

Roy picked up his glass and took a sip.

"That's not a small amount."

However, the quality varied greatly, and only a few hundred people were truly useful.

"In war, even cannon fodder has its uses."

Kaido didn't care.

"By the way, you mentioned last time that Vegapunk was trying to replicate my Azure Dragon Fruit. How's that going?"

"The first batch has already been tested on living organisms."

If there are no problems during the three-month observation period, mass production can begin.

"Three months?"

Kaido frowned.

"Could you go faster?"

"You think this is a Chinese cabbage?"

Roy glanced at him.

"The replication of Devil Fruits involves the reconstruction of bloodline factors, and the slightest carelessness can lead to genetic collapse."

For a scientist of Vegapunk's caliber, completing this in three months is already the limit.

Kaido snorted, but didn't urge him any further.

He trusted Roy—not because Roy was better than him, but because Roy had never wronged him in the past twenty years.

From helping him gain a foothold in Wano Country to killing Satan Saint in the Marineford War, and then to the multi-heart transplant technology on Beehive Island, Roy's every step was terrifyingly precise.

"That straw hat kid, do you really think he can get stronger in prison?"

Kaido suddenly asked a question.

"It's not just a feeling, it's certainty."

Roy put down his glass.

"Straw Hat Luffy is the type who can unleash his full potential the more he is pushed to the brink."

The harsh conditions of Udon, the restrictions of the seastone handcuffs, and the imprisoned samurai of Wano Country—

These factors combined will force him to push his limits.

"To what extent has it been broken through?"

"At least it can hurt you."

Kaido frowned.

Roy laughed: "Don't believe me?"

It's not that I don't believe it.

Kaido took a swig of sake.

"In all my years of life, I've never seen anyone improve so much in just a few months."

"Then you just wait and see."

Roy stood up and walked to the window.

Outside the window, the night view of Ghost Island is as spectacular as ever.

The massive skull silhouette gleamed with a chilling luster under the moonlight. The harbor at the foot of the mountain was filled with the Beast Pirates' warships, and in the distance, in the direction of the Flower Capital, scattered flames still burned.

"By the way, what are your plans for Quinn?"

Kaido suddenly asked.

"Let him guard the rabbit bowl for now. When Straw Hat Boy breaks out of prison, he will be our first line of defense."

"Can that fat guy stop him?"

"It can't be stopped."

Roy turned around, a slight smile playing on his lips.

"But at least it helps us confirm one thing—just how much the Straw Hat Boy has grown."

Kaido was silent for a moment, then burst into laughter.

"Hehehe—Roy, you're a real scoundrel."