The trees began swaying violently, and even the sky turned ominous!
How terrifying!!!
This was the true power of Conqueror's Haki!!!
Unlike beginners such as Luffy or Boa Hancock from the storyline, whose Conqueror's Haki could only intimidate through sheer presence.
Conqueror's Haki at Rayleigh's level could inflict actual physical damage! In the storyline, "Red-Haired" Shanks used Conqueror's Haki to crack Whitebeard's warship.
And at this very moment!
A pitch-black fissure gradually split open across the overcast sky!
Clearly, Rayleigh held absolutely nothing back! His full-power Conqueror's Haki literally tore the heavens apart!
At the epicenter of Rayleigh's Conqueror's Haki!
Kai slowly closed his eyes, feeling the overwhelming force washing over him. His expression remained completely unchanged, as if this earth-shaking Conqueror's Haki was nothing more than a gentle breeze.
Witnessing this scene, shock and amazement flashed through Rayleigh's eyes. This was his absolute maximum Conqueror's Haki output!
Even Roger himself, without releasing his own Conqueror's Haki to counter it, could never have appeared this relaxed. Was this kid even human?
A prodigy!?
No!!!
This was clearly a monster!
At this moment, Kai had completely immersed his consciousness within Rayleigh's Conqueror's Haki!
If Conqueror's Haki was simply willpower made manifest...
Then using willpower to shatter warships!? Using willpower to rip apart the sky!?
What a joke! Even in the Naruto world, despite controlling the world's fundamental forces, Kai couldn't accomplish such feats through willpower alone.
So Conqueror's Haki absolutely couldn't be explained as mere willpower.
Then what kind of power could it truly be?
Rayleigh's Conqueror's Haki gradually penetrated Kai's body. Sensing this foreign haki, every cell throughout Kai's form seemed to burst with excitement.
They immediately transformed into ravenous gluttons, beginning to devour Rayleigh's Conqueror's Haki!
Within mere moments, a complete haki vacuum had formed around Kai!
Rayleigh stood speechless. In just this brief span, nearly ten percent of his haki had been consumed. He hurriedly withdrew his power, staring at Kai with an utterly bewildered expression.
What kind of monster was this kid!?
Devouring haki?
In all his years, forget witnessing such a thing—he'd never even heard rumors of it!
Apparently sensing no more haki to consume, the cells within Kai's body gradually settled down.
They began processing the haki they'd just absorbed.
At this point, Kai finally gained complete understanding of Conqueror's Haki's true composition. It was the manifestation of spiritual and physical energy guided through willpower!
How remarkably similar!
Kai's immediate thought was of chakra from the Naruto world—produced through identical principles. However, why was fusing these two energies so extraordinarily difficult in the One Piece world?
The moment this question formed in Kai's mind, the system's voice responded:
"Congratulations host, you have successfully analyzed the One Piece world's power framework... Initiating integration with host's existing power structure... Ding... Integration complete. Congratulations host, you may now utilize chakra power within the One Piece world!"
Kai froze in surprise, then felt overwhelming joy. He could use chakra power now!?
Then water jutsu should be—
Before Kai could complete this thought, the system immediately dampened his enthusiasm:
"Please note: host may only access raw chakra power. If host requires specific jutsu techniques, please utilize reputation points for power synchronization."
"Uh..."
Kai felt somewhat deflated. The system's loopholes really weren't so easily exploited.
Still, pure chakra power wasn't terrible. At minimum, he could use non-elemental techniques like Rasengan, chakra scalpel, and medical ninjutsu.
However, Kai's fundamental question remained unanswered. He mentally inquired:
"System, why is fusing physical and spiritual energy so difficult in the One Piece world?"
"Different worlds operate under completely different power laws. Please refrain from measuring the One Piece world through Naruto world frameworks," the system replied with cold efficiency.
Kai nodded thoughtfully. Differences between separate worlds were inevitable—otherwise his abilities wouldn't require system synchronization before functioning in the One Piece world.
For now though, he should focus on mastering Conqueror's Haki!
Shaking his head to clear away scattered thoughts, Kai began guiding his spiritual and physical energies through his willpower, attempting to fuse them together.
From Rayleigh's perspective: Kai stood motionless for a solid fifteen minutes, first nodding, then shaking his head.
"Whew..."
Rayleigh exhaled with relief, thinking: Can't manifest Conqueror's Haki? That's normal. Otherwise...
Suddenly, a devastating aura exploded from Kai's entire being!
This presence devoured heaven and earth!!!
With Kai as the epicenter, the sky across dozens of kilometers began transforming dramatically. Ocean waters churned violently! Massive waterspouts dozens of meters wide shot toward the heavens!
The sky itself writhed under assault, enormous fissures continuously tearing open across the horizon!
Rayleigh stood in complete stupefaction!
Couldn't he use it? What the hell is happening!?
If he could manifest it, then why shake your head?
Moreover, was this power even humanly possible? Even Roger at his absolute peak, with full Conqueror's Haki unleashed, couldn't match ten percent of this magnitude!
Too terrifying!
This was Kai's complete spiritual power and total physical energy, unreservedly fused and released—it had utterly transcended human limitations!
How could it not be absolutely terrifying!?
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