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When the eldest brother is sacrificed to the heavens… divine power knows no bounds!
This eternal truth has been proven again and again by countless heroes.
Tanjiro, saved by Rengoku's noble sacrifice, went on to slay demons one after another and ultimately defeated Muzan, the King of Demons.
Because of Brand and Susanoo's back-to-back sacrifices, the golden demon was born—an unstoppable force that shattered even the mightiest imperial weapon.
Now it's Monkey D. Luffy's turn.
No one really knows the details of Ace's "heavenly offering"…But the effect of that sacrifice? Absolutely extraordinary.
It became a driving force in Luffy's growth.
Facing an enormous giant that towered over him—Luffy only needed one punch to bring it down.
That kind of strength was worlds apart from the boy who once fought in Alabasta.
Some even whispered that, at this point, Luffy could one-shot Crocodile.
"No way, no way," Erza from Fairy Tail waved her hand, shutting down Natsu's wild claim."Crocodile's still one of the Seven Warlords of the Sea—a powerhouse near the top of this ocean's food chain. One-punch kill? Too much. But yeah… Luffy would definitely win a lot easier this time."
"Tatakai! Tatakai! It's not over yet!"Over in the Attack on Titan world, Eren's eyes went blood-red with excitement."Luffy, you gotta slice the nape! That's the only way to kill a giant!"
"Calm down, Eren!"Armin and Mikasa quickly pulled him back."They're not the same kind of giants, remember?"
"This is only the beginning," Gon said in Hunter x Hunter, his eyes sparkling."The real fight's still coming!"
Meanwhile, in One Punch Man's world, the Taoist master Wang analyzed calmly:"In Group C, the ones likely to reach the end are those few: the explosive-puncher Ideo, Don Chinjao and his heir Sai from the Happo Navy, and of course, the legendary pirate himself—Luffy."
As they spoke, the Group C free-for-all was nearing its end.
Just as Wang predicted, only four fighters remained standing:Don Chinjao, the 12th pillar of the Happo Navy with a 500-million bounty; his successor Sai, the 13th pillar; the "Destructive Cannon" Ideo; and two years after the war—Straw Hat Luffy himself.
Ideo's explosive fists clashed violently with Sai's Eight-Impact Fist, shaking the whole arena.
Meanwhile, the legendary pirate Don Chinjao finally stepped up to face Luffy.
"Karp's grandson," Chinjao growled, "it's time you paid your grandfather's debt. That bastard robbed me of my treasure—my strength—my youth! Now you'll pay the price for him!"
Luffy sighed. "Man, I told you, I don't know anything about that! Go yell at my grandpa yourself!"
"Even if I kill Garp, my hatred won't fade!" Chinjao shouted, his hands clasping together as his aura erupted. His thick white beard bristled upward with the force."I'll make him live long enough to feel the pain of losing something precious! Prepare yourself!"
Luffy crouched slightly, pressing his fist to the ground.Second Gear—Activate!
Steam hissed around him in waves of heat.
"Fine by me," Luffy said, eyes blazing. "If I don't beat you, I can't move on. And I'm not letting anyone else take that Mera Mera Fruit!"
"Then I'll crush you here and now!" Chinjao roared, charging forward.
Luffy charged too—But before the two collided, Ideo and Sai's brawl spilled into their path.
And then—To the utter shock of everyone watching across worlds—Luffy casually kicked Sai clear off the stage, while Chinjao's punch flattened Ideo in one hit.
It was over in seconds.Smooth, effortless.Two top contenders taken out like flies.
The gap in power between them and Luffy or Chinjao was like a canyon separating heaven and earth.
"Garp's grandson!!" Chinjao roared again.
Black Armament Haki cloaked his fists.
Luffy tightened his stance, his own fists hardening under the same dark sheen.
In that instant, under the gaze of countless spectators across universes—The two clashed.
Fist met fist.
The heavens and earth trembled.
Winds howled.Black-and-red lightning crackled violently.
This was no longer a simple collision of punches.This was Conqueror's Haki clashing head-on with Conqueror's Haki.
All around them, fighters who'd merely fallen unconscious moments before now rolled their eyes white and collapsed completely, knocked out cold by the overwhelming pressure.
Even the ferocious Fighting Fish thrashing in the water outside the ring fainted one by one.
Spectators in the stands dropped like dominoes, collapsing where they sat.
And that was only the beginning.
As Luffy and Chinjao roared, their auras collided again, and the shockwave tore through the arena like a storm.
The air twisted, exploding outward from the point of impact.
The whole coliseum shook under the force.A blinding light flashed brighter than the sun itself.
When the dust finally settled, only two figures remained standing—Luffy and Don Chinjao.
The entire Bullfighting Arena went silent.You could hear a pin drop.
Across worlds, countless viewers stared in disbelief.
It didn't have the same grand, magical spectacle as Ainz Ooal Gown's dual super-tier spell…Nor the massive clash between Doflamingo, Law, and Admiral Fujitora.
But in terms of sheer shock value—This duel didn't fall short of either.
"Hey… did you see that?""Even the people outside the ring—and those Fighting Fish in the pool…""They weren't even hit directly, but they all just passed out!""What the hell kind of power is that?!"
The broadcast helpfully displayed three words on the light screen:
Conqueror's Haki - Armament Haki - Observation Haki.
...
In the Dragon Raja world—
"It's Conqueror's Haki?!" Lu Mingfei's eyes went wide.
"You even know what that is?" Caesar asked, raising an eyebrow.
"Heh, not really," Lu Mingfei scratched his head. "But come on, just from the name, it sounds badass! Like, 'the aura of a king'—everyone bows down before you!"
Over in Reborn!, Reborn himself chuckled softly:"Conqueror's Haki—something only one in a million possess. The mark of a true king. Just by sheer willpower, you can knock out your enemies. Now that's a terrifying gift indeed."
Across the Worlds, the King's Aura Awakens
Even Reborn, the legendary "strongest hitman baby," couldn't help but click his tongue in awe.
Jujutsu World
"Heh… only one in a million born with a king's spirit, huh? This Conqueror's Haki is basically a nightmare for the weak!"Gojo Satoru grinned, clearly entertained.
Akame ga Kill World
"Man, that's one hell of a power! If I had something like that, even an army of ten thousand wouldn't scare me. Just release that kingly aura and—bam!—ninety percent of 'em would drop on the spot. Ah, I wish I had that!"The green-haired boy, Lubbock, looked on with open envy.
"Keep dreaming," snarked the twin-tailed tsundere, Mine. "Even if there were a million of you, not a single one would awaken that power."
"Ouch, that's cold! Tatsumi, control your girl, man!" Lubbock cried dramatically.
"Eh?! Don't drag me into this!" Tatsumi yelped, startled.
Sure, in the future they'd end up together—but that was the future. Right now, they weren't even close.
The Night Raid base erupted into chaos—yelling, laughter, and enough bickering to shake the walls.
Demon Slayer World
"Nezuko! That Luffy guy is amazing—seriously amazing!"Tanjiro's eyes sparkled with excitement, utterly blown away by the Straw Hat's growth.
"Conqueror's Haki, huh? If we had that during the Alabasta War, it probably would've ended in seconds!"Tengen Uzui said, flamboyant as ever.
"Wahahaha! I must be one of those one-in-a-million kings myself! Kingly aura, appear!!"Inosuke bellowed, puffing out his chest.
All the Hashira: "…"
Naruto World
"The natural-born Conqueror's Haki is a gift of fate. But that one that coats the body—Armament Haki—that's trainable! Lee! Our next goal is to master the power of Armament with pure, unyielding will!"Might Guy shouted, fists clenched, eyes blazing.
"Yes, Guy-sensei!" Lee responded with his usual fiery spirit.
"Come on, you two," Tenten sighed. "There's no way you can just train that. It's from another world!"
Hunter x Hunter World
"Well, well," Hisoka chuckled. "Looks like Fire Fist Ace's death really gave the Straw Hat kid an epic power-up. Hey, Illumi, how about you try that? Maybe if you sacrifice yourself, your little brother Killua will have his own transformation arc~"
The "ultimate brother complex" Illumi answered with a silent, lethal hand strike that Hisoka narrowly dodged, laughing all the while.
Inuyasha World
"Lord Sesshomaru! You're the big brother, but please don't sacrifice yourself for anyone else!"Rin clung to his leg, terrified.
Sesshomaru's face darkened.
Sacrifice himself—for Inuyasha? Not a chance. If anything, he wanted to kill that mutt and take Tessaiga back for himself.
All Across the Worlds
The multiverse buzzed with noise and excitement.The projection of Luffy's battles burned bright on the giant light screen, every clash drawing louder cheers.
One Piece World – Sabaody Archipelago
Inside Shakky's Rip-Off Bar, the tension was palpable.
"Whoa! Future Luffy is insane! If I had power like that, I could've saved Ace for sure!"Usopp's eyes were wide, his voice filled with awe.
"Just mastering the three types of Haki… still might not be enough," Shakky thought silently.
After all, the upcoming Marineford War would be the grandest battle in the world—ordinary Conqueror's Haki alone wouldn't shake that battlefield for long.
But she kept that thought to herself, not wanting to crush the boys' spirits.
West Blue – Flower Country, Happo Navy
"Damn that brat! Cursed grandson of Garp! I'll crush him into paste! Let that bastard Garp feel the pain of losing someone he loves!"Chinjao of the Happo Navy roared, tears and fury mixing on his face.
Marine Headquarters
"What?! Straw Hat Luffy learned all three forms of Haki from Rayleigh?!"
The revelation from the light screen stunned the Marine brass.
"Rayleigh? You mean that Rayleigh—the Dark King? Roger's right-hand man?!"Colonel Tashigi gasped, eyes wide.
Vice Admiral Gion, the future "Pink Rabbit," cast a suspicious look at Garp, who was casually munching on rice crackers.
"Garp, what did you do to that Chinjao guy? He still hates you so much he's going after your grandson!"
"Hahahaha! Nothing serious! I just punched him once!"Garp roared with laughter, waving it off.
The Arena – Battle Reaches Its Peak
On the screen, the battle between Straw Hat Luffy and Chinjao raged on.
"Eight-Impact Fist—Drill Head Spin!"Chinjao flipped upside-down, spinning like a deadly top.
"Gum-Gum Jet Cannon!""Gum-Gum Jet Gatling!""Gum-Gum Stamp Gatling!"
Luffy's fists and feet blurred like a storm, his Second Gear driving each blow faster and harder.
The shockwaves rippled through the arena, cracking stone, shaking walls.They were moving faster than most eyes could even track—only flashes, afterimages, and deafening impacts remained.
This was the match of the tournament—their ultimate showdown.
After hundreds of exchanged blows, Luffy growled, "You're one tough old man. Guess I'll end it with this!"
He grabbed Chinjao by the shoulders, launched himself into the air——and entered Third Gear!
The crowd across infinite worlds held their breath as Luffy's arm expanded, ballooning into a massive giant's fist, coated in swirling Armament Haki.
His new ultimate move exploded forth!
"Foolish brat!" Chinjao bellowed. "You upstart pirates of this Worst Generation are nothing compared to us veterans of the sea! I'll crush every bone in your body!"
He brought his palms together, unleashing his ultimate technique—Eight-Impact Fist Secret Art: Drillless Dragon!
But Luffy roared back—"Gum-Gum—Thunder God Elephant Gun!"
The collision was cataclysmic.
A blinding boom ripped through the arena, waves of force distorting the air itself. Lightning seemed to dance across the battlefield as the two titans clashed.
For a heartbeat, they were deadlocked—then the tide turned.
Luffy's thunderous strike smashed directly into Chinjao's head.
The old man's flattened, dented skull—the one Garp had punched into a cone decades ago—suddenly… popped back into shape!
And then—
BOOM!
Chinjao went flying, crashing down hard enough to split the arena clean in half.The crowd gasped as water flooded in.
The result was clear:
Winner — Straw Hat Luffy!
Fairy Tail World
"Whoa, that's crazy! Didn't think a simple rubber fruit could be used like that!"Natsu marveled, fire practically sparking in his grin.
The Outcast World
"Because he's made of rubber, his body can stretch and inflate beyond normal limits," Zhang Chulan muttered, analyzing with interest.
Naruto World
"Ha! That's awesome! Luffy's the best! Can't wait to see what other crazy moves he's got next!"Naruto laughed, fist pumping.
The Light Screen Shifts
The image changed again—The final showdown of Block D began.
Thanks to the sudden awakening of Rommel's Scythe Weasel, the one who advanced was the young, beautiful swordfighter, Rebecca.
And as the fiery, barely-dressed girl took the stage, gentlemen across the multiverse collectively lost their minds.
Of course…most people still had their eyes on the real highlight: the coming decisive battle—and whatever incredible power Luffy would reveal next.
But before the finals began—
An unexpected visitor appeared before the Straw Hat.
A young man with blond hair.
And when his identity was revealed, the entire multiverse erupted in shock.
"What?! That guy's Luffy's brother too?!"
"One brother, Ace, is already dead—and now another one, Sabo?!"
"Unbelievable! The Straw Hat kid's got another brother stepping up for the altar!"
"..."
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