In One Piece, I Am the Ultimate Doflamingo

"No, Kaido-san, this is just the Phase Two!" Doflamingo grinned.

So this is what internal destruction truly is. It's not just about quantity. Not just density or mass. But also the overwhelming will that Otohime's Observation Haki had sensed.

"Come on, let's see what else you've got!"

Watching Kaido's growing excitement, King felt a headache coming on and attempted to intervene.

"Kaido-sama, the situation in Wano is still uncertain."

"King, Queen told you about the secret medicine, right?!" Kaido spread his arms wide, as if ready to grasp the entire world, then pointed at Doflamingo.

"Right now, this brat is more important!"

King: ... I knew it! That idiot Queen!

"Only an indomitable will and a Haki strong enough to shatter everything can unleash the most devastating punch." Doflamingo muttered to himself. His body transformed into threads, integrating his fragile internal organs completely.

Bone threads seeped out from his skin, forming a new version of artificial muscle. New material. Stronger power.

Boom!

With a step using Soru, Doflamingo vanished. The next moment, he appeared right in front of Kaido, throwing a punch.

Kaido laughed heartily and responded with a fist of his own.

BOOM!

The impact exploded violently, sending both of them flying back. Their feet slammed into the ground, halting their movements.

Kaido glanced at his fist, now seeping blood for the first time, his excitement intensifying.

"Uorororo! Not bad, brat."

"Fufufufu... there's even more to come."

Doflamingo's artificial muscles, which had exploded from the impact, rapidly regenerated. Behind him, sixteen bone-thread tentacles emerged.

His pitch-black fist and the tentacles crackled with an invisible ripple.

This was Advanced Armament Haki—Internal Destruction. A force that could truly harm Kaido.

With an explosion, both fighters vanished.

THUD!

In the instant he caught Kaido's fists, the sinister grin on Doflamingo's face deepened.

"Kaido-san, savor this moment!"

Eight tentacles wrapped tightly around Kaido's limbs, restraining him. The remaining eight struck continuously like piercing lances.

Puh! Puh! Puh! Puh! Puh!

Blood splattered from Kaido's body. The tentacle strikes became faster and faster, moving so quickly they left afterimages.

King, watching from the sidelines, widened his eyes in shock and unconsciously took a couple of steps forward.

"What the hell? This kid's power… he's actually suppressing Kaido-sama, even if only for a moment?!"

Even without his dragon form, Kaido's physical strength was already capable of splitting mountains and seas. This kid's Devil Fruit was clearly a Paramecia—how much could it even enhance his strength? Just how terrifying was his raw physical power?

"Uorororo! That hurts, brat! You're doing well!"

Azure dragon scales began to emerge across Kaido's body. His defenses and power surged once again!

The Dragon-Human form appeared before the world.

"But don't get ahead of yourself!"

The tentacles piercing his flesh were abruptly caught in place. Kaido forcefully retracted his restrained arms.

Doflamingo's eyes burned with excitement as he watched Kaido's next move.

Black-red lightning coiled visibly around Kaido's fists, exuding a deadly aura!

"Without Conqueror's Haki, you're not even qualified!"

A Haki-infused fist hammered straight into Doflamingo's forehead.

BANG!

With a sound like clashing metal, Doflamingo's head was caved into his chest. His body shot across the sky like a comet, breaking the sound barrier.

BOOM!!!

He crashed through layers of cake, steel-hard candy walls, and trees—obliterating everything in his path.

"So this is real Advanced Conqueror's Haki? Damn, that packs a punch."

Doflamingo pulled his head back into place, shaking off the dizziness.

He suddenly recalled a MOBA game from his past life.

He had been slashing away at Kaido for ages, but Kaido's single strike dealt more damage than all his efforts combined.

Yet, this one hit was enough to give him insight!

"Kaido-san, I need more! Let me experience more of Advanced Conqueror's Haki!!!"

Doflamingo's madness intensified as he charged toward Kaido. With every step, the candy and cake around him took on a silky texture, flowing toward his body.

"Awakening?" Katakuri and Perospero were stunned.

"That form again…" Moria's face darkened, while Enel smirked in amusement.

"So Doffy has grown this strong!" Pica's eyes gleamed with admiration.

"Kaido..." Vergo, now in partial Dragon-Human form, flicked his tail anxiously against the ground, revealing his inner turmoil.

...

As he closed in, Doflamingo's body grew taller. The bone-thread muscle armor expanded outward, condensing into the skeletal frame of the Thread Titan.

Once again, the Thread Titan stood upon the battlefield.

Seeing this, Kaido hefted his favorite teaching tool—his massive kanabo, Hassaikai!

"Mamamama! A brand-new form?! That brat keeps getting stronger!" Big Mom, watching from afar, cackled with excitement.

"White Wave!"

Countless white threads surged like a frenzied tidal wave, swallowing Kaido's dragon claw.

The next moment, his claw stomped it flat.

But Doflamingo never expected such a simple trick to slow Kaido down.

His gigantic right leg stretched across the battlefield, spiraling with momentum.

Black lightning-infused energy radiated from the tip, spinning fiercely as it descended.

Kaido remained motionless, making no attempt to evade. Above him, black-red lightning and roaring thunder surged toward his kanabo.

"Thunder Bagua!"

The instant Doflamingo's massive leg closed in, Hassaikai slammed down upon his skull!

BOOM!!!

Both were sent flying.

Cough, cough!

Doflamingo spat two mouthfuls of blood, baffled.

"Uorororo! Brat, your strength has improved again!"

Kaido rubbed his forehead, standing up from the rubble. Looking at the fanatical Doflamingo, admiration burned in his heart.

He really liked this kid. He really wanted him as a subordinate.

Such a powerful physique… what a shame he didn't eat a Zoan Fruit.

"But bring out your Conqueror's Haki!"

"We're just getting started, Kaido-san!"

Doflamingo charged once more, the Thread Titan following in his wake.

"16 Holy Bullets!"

Sixteen colossal, Advanced Armament-coated threads lashed out.

"Good! That's the spirit!"

For the first time, Kaido charged forward as well.

Unlike before, where thunder and Conqueror's Haki intertwined, this time, pure black-red lightning surged from his body into Hassaikai.

"Don't die on me, brat. This is my new power!"

Kaido bent his knees slightly and launched himself at Doflamingo, gripping his Haki-infused kanabo with both hands.

"Thunder Bagua!"

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+220 chapters on p@treon/tambeerg