Kairo did not think he was going to spend the majority of his time doing what he did, but here he was.
Luffy was coming at him at full speed. Usually, if Kairo were at full strength, this would be easy for him—like an easy diff—but he was weakened, and every second he fought, he was getting weaker and weaker.
He could feel his muscles screaming at him to stop. His body was genuinely at the brink; if he were human, he would've died twice over by now.
Haki kept pouring out of him. His body might've been asking for a break, but he wasn't backing down.
He wasn't determined, however... he didn't want to continue this. Mentally, his ass did not want to be doing this right now.
So not only was he physically weakened, but mentally as well.
Luffy kicked off the air multiple times, appearing in front of Kairo.
{Gum-Gum... Pistol}
Kairo parried the blow upward before proceeding to land a powerful blow to Luffy's stomach, sending him flying.
Smoke came out of Luffy's mouth, but he placed a hand over it, stopping the smoke from leaving his body.
Kairo gazed at his captain. This was ridiculous.
{Gum-Gum Serpent}
The second Luffy recovered, he began pounding Kairo with attacks. His fists moved around randomly, sometimes even curving at odd intervals. Kairo turned on his Observation Haki and began swaying his body out of the way of Luffy's attacks.
As he saw a fist about to hit him in the face, he attempted to dodge it—but blood gushed out of his mouth. He staggered.
Fuck... he forgot that just one day ago, he'd been boxing with an Admiral, only getting roughly five minutes of rest before having to fight for another day.
Bam ×30
That little second was enough for one of Luffy's blows to land.
"HAAAAAAAAAAAAA!" Luffy shouted as he poured all of his energy into his punches. His fists landed on Kairo like a hail of bullets, each one infused with light traces of CoC coating and very bad—and I mean ass-level—Ryo.
Still, only one in a hundred blows actually hurt Kairo.
As the hail of blows continued, that number decreased to one in seventy-five... then one in fifty... before finally settling at one in twenty-five.
Luffy retracted his arms, huffing and puffing. He was utterly drained, looking like his soul had been sucked out of his body. Some parts of him were even reverting to his base form.
It had only been a minute, and yet he felt like he was about to lose this form.
"Why the hell do you care so damn much? We barely even met! Why risk your life for me? The Government will stop at nothing to kill you if they know I'm in your crew! They'll massacre you and your crew worse than they did Ohara! So why are you still fighting when you're obviously losing?!"
Kairo was pissed. Why was this rubber man trying so hard? It wasn't like they were best friends or something.
"BECAUSE YOU ARE MY FRIEND!"
Kairo, noticing this, realized he could've escaped—Luffy wouldn't be able to stop him.
"Let's end this."
Kairo's fist turned black (I know it's a visual in the anime and Haki's invisible—hop off my dick).
Lightning sparked around Kairo's fist as he imbued it with Ryo and Conqueror's Coating. It was about time he taught Luffy a lesson.
Luffy, realizing this clash would be his last, bit into his hand before blowing air into his muscles.
His hands got ridiculously huge.
"Bring it on!" Luffy rushed toward Kairo at full speed, cocking his fist back.
{Gomu Gomu no Kong Gun}
"Silent Fang"
As Luffy and Kairo clashed in the middle of the island, the ground around them cracked, and blood combusted from Luffy's body. He was in pain as Kairo's move imploded inside him—his bones were being shredded by Kairo's Ryo.
However, that didn't stop him.
"HAAAAAAA!"
Luffy poured all of his resolve into his attack—everything he had, every ounce of power his body could offer. He used all 200% of his potential, pushing past his limits, reaching 250%.
While Kairo... wasn't thinking the best of things right now.
He didn't know what this rubber man saw in him.
{Flashback}
A small boy could be seen, covered in wounds and blood. His wings looked like they had been cut. A man held him gently, giving him a soft smile.
"Live... my boy... find some friends... and live well."
"Please, don't die! Please... I'm sorry! I was just trying to help, I didn't know!" the boy cried as the village around him burned.
{Galaxy Impact}
The boy barely registered the sound, even as a Buddha destroyed a portion of the island. He'd messed up so badly. He just wanted to help. Why did trying to help one person cause this?
His people—slaughtered. What did they even do?
The boy's eyes stared lifelessly as the man took his last breath, lava pouring from his wounds.
A shadow loomed over him.
The boy looked up—an Admiral covered in lava stood over him, battered but still alive.
He cocked his fist back.
"Die, you scum." Yup. Saying that to a child truly was something an Admiral should say.
Kairo's gaze, however, was filled with hatred. This fuck.
But he couldn't do anything. He was teleported away by a seal before the attack hit.
{Flashback end.}
Kairo hesitated—Luffy's face overlapping with the man who once told him to live a happy life.
BAM
Kairo was slammed into the floor as Luffy's punch pummeled him.
As the smoke vanished, Luffy stood victorious while Kairo lay on the floor, eyes fixed on the sky.
"...I... lost, huh," he said, more to himself than anyone else.
His gaze shifted to Luffy—the guy's eyes had already rolled back. He had reverted to base form long ago. That punch was simply his will. His body had long given up on him.
{Kairo vs Luffy}
{Winner: Luffy}
A/N...fun fact if Kairo had continue to fight after this, gear 5 would have been awaken, granted Luffy wouldn't be in control but oh well.
On an another note, Kairo feel personally guilty for the death of his people because unless you forgot they were a secret society and only way in was to be guided in…..TLDR young Kairo made a mistake.
Chapter 100 a special so it will be posted later.
A/N I think I made it clear Luffy won the ideological battle but if the fight had went on, and if Kaido even try slightly more he would win, for fuck sake, he still has enough power level to solo the rest of the crew, running a dam gauntlet Sukuna style.