Across the sea, on the distant coastline, a massive crowd of bizarre and enormous creatures had gathered.

Some lay sprawled along the shore, while others leapt straight into the sea...

Above them, the sky flickered with strange glows—blue, red, and more—casting an eerie light across the heavens.

Conqueror's Haki crackled through the sky in wild flashes, sending waves of unprecedented fear into the hearts of all who witnessed it—be they people or beasts.

"Gulp..." Hajrudin was wide-eyed in shock, cold sweat pouring down his face. "Someone... someone's fighting in the Underworld. Even those terrifying and mighty Mountain Lords are trembling in fear, abandoning their territories..."

"They're even diving into the sea as if their lives depend on it. Who could possibly be fighting!?"

Ida clutched Hajrudin's hand, anxiety etched all over her face. She murmured, "I think... I think I can feel your father's aura. It must be him."

When she thought of Harald's opponent, a single face involuntarily surfaced in her mind—Klein, and the image of him unleashing Conqueror's Haki to knock out the giants inside the tavern.

And the words he had spoken echoed once more:

"My name will echo across every island in the world!"

It had to be him!

And it wasn't just the tavern—Elbaf's surface world was being shaken by the aftershocks too.

Underworld.

Cold winds howled one moment, searing heat rolled the next.

The battle had dragged on for over an hour.

Os felt dizzy, his head spinning with each clash of Conqueror's Haki. "How long are they going to keep this up!?"

"No idea... but Klein-sama's body is even more monstrous than a monster's. He's on par with Linlin herself," Gloriosa said with a blush.

She'd given Klein many massages and knew full well how terrifyingly solid his physique was. A true beast.

Every time she massaged him, she could feel that raw power beneath the perfectly sculpted muscles, as if carved by divine hands.

And now her mind began to drift... the scene turning pink, blurry—like a romantic action drama was playing out in her imagination.

The picture was too steamy to describe. Please fill it in yourself.

Whitebeard's expression was tense. Suddenly, he asked, "Klein-sama and that giant... who's going to win?"

"Klein-sama, of course!" Gloriosa answered without hesitation.

Charlotte giggled. "Obviously, Klein will win."

"Hmph!" Loki snorted in disapproval. "Giants have the advantage in physique, strength, and endurance. Of course Father will win!"

His enchanted eye, hidden beneath a bandage, revealed his unease.

That's when Charlotte stepped up to Loki and asked with a bright smile, "Hey, wanna be Klein's son?"

"..."

Loki's face darkened. The spot where Klein had punched him suddenly started throbbing again.

He refused to back down. "If he actually wins, then fine! I'll be his son!"

"Heehee, you said it!" Charlotte beamed. "But Klein and I will definitely have stronger children anyway."

She blinked innocently, completely ignoring the raging hurricane around them, already lost in her fantasy.

In her mind, she and Klein were walking hand-in-hand, surrounded by a flock of their own children while flowers and grass sang and danced in the background.

The perfect dream left her floating in bliss.

Loki, meanwhile, was left with a giant question mark on his face.

Two dudes?

Kids??

Did I just mishear something!?

Shakky couldn't help smirking as she thought, "Looks like we've got another monster joining our crew... but whether it's Charlotte or Loki, their bodies are only going to get bigger."

"We'll probably need a supersized battleship just to fit their active range..."

BOOOOOM—

CLANG CLANG CLANG—

The battle raged on in the distance. Snow-covered mountains collapsed and melted, while lava spread across the land. The air itself twisted under the scorching heat.

"Shit! Lava everywhere—it's completely limiting my movement!" Harald was soaked in sweat.

His physique, far exceeding that of a typical giant, gave him massive strength—but also many drawbacks.

Klein's scroll techniques had a weakness: casting delay. Any elite fighter should've been able to dodge at least part of the damage.

But Harald was simply too massive. Dodging was impossible.

All he could do was face Klein's "ninjutsu" head-on again and again!

Ssshh!!

With a single sword slash, he cleaved through a massive lava fist. Magma splashed to the ground, forcing him to retreat.

Once again, the ground he could move on was compressed under Klein's pressure. Harald roared in frustration, "Damn sly bastard! Is this lava shit ever gonna end!?"

Just moments ago, this world had been an icy hell—and now, within kilometers, it had turned into a blazing lava pool.

If this keeps up, even if he wins, the entire Underworld might turn into a blazing inferno!

"We've been at this long enough. Time to end this farce!"

Klein grinned wildly and pulled out a scroll—S-Rank Ninjutsu: Fist of the King.

The moment he did, Harald's expression tensed up.

At this point, it had to be a killing move.

He couldn't afford to relax—not even for a second.

Both hands gripped his massive sword tightly, his entire body tensing up like a drawn bow. His face turned deadly serious.

"S-Rank Ninjutsu: Fist of the King!"

Klein flicked his wrist. The scroll unfurled midair with a loud snap—and in that instant, a terrifying shockwave surged from it like a flood bursting through a dam.

It roared forward like a rampaging dragon, unleashing dazzling light and furious lightning that tore the sky apart!

BOOOOOM—

The earth quaked and cracked open. Searing magma poured into the fissures, forming towering lavafalls.

Harald narrowed his eyes. On his steel-forged body, veins bulged like writhing snakes.

He gripped his sword and, like a golfer winding up, swung with full force!

"Elbaf Spear: Ikoku!"

The domineering giant sword technique shot out a beam of light like a laser cannon.

Where it passed, the atmosphere rippled like water.

BOOM—

As with all legendary clashes, the impact birthed a blinding white explosion so intense, no one could keep their eyes open.

The deafening sound slammed into eardrums like hammers. Vision, hearing, and thought all faded into blankness.

"This... this must be what it feels like to witness the end of the world!"

Os clenched his eyes shut as the howling winds lashed his body like blades, cutting across every inch of exposed skin.

It felt like he'd be torn apart any second!

Gloriosa's clothes whipped in the wind. She raised her arms to block the blinding light and gales, peering through her fingers. "I can't see a thing. Even Observation Haki can't pierce through this storm of energy!"

The air was filled with shockwaves, hurricanes—and even raging lightning storms.

The cigarette in Shakky's mouth was snapped in half by the wind and dissolved like snowflakes as it drifted away.

Her elegant face was frozen in awe. "A fight between top-tier monsters... even spectating is this dangerous..."

Whitebeard dug his feet into the ground like a plow ox, carving a deep trench tens of meters long.

"H-Hold on... I-I'm gonna get blown away at this rate!"