The snow beneath Chopper's hooves was stained with melting pink from his own blood. He stood between the monstrous Chessmarimo and the tattered pirate flag of the Straw Hats, flapping defiantly in the Drum Island gale.
"I won't forgive you," Chopper whispered, the words steaming in the frozen air. His hoof tightened around the small, black sphere. The Rumble Ball felt like a heartbeat in his palm.
Chessmarimo's fused heads laughed in discordant harmony. "Forgive? You're a talking raccoon holding a candy! What will you do, little doctor? Heal me to death?"
"I'm a reindeer." Chopper's voice shook, but not from fear. From fury. "And this flag… these people… they're my first friends. I will defend them."
He swallowed the Rumble Ball.
A shockwave of heat erupted from his small body. The snow around him vaporized in a sudden circle. His fur stood on end, crackling with latent energy.
First Transformation: Walk Point. His body elongated, muscles rippling beneath fur as he dropped to all fours—a beast built for speed.
Chessmarimo yawned. "Fast. So what?"
Second Transformation: Guard Point. Chopper ballooned into a sphere of dense muscle and fur, a living fortress.
"Harder to cut. Boring."
Third Transformation: Horn Point. Antlers sharpened into brutal spears, his frame compacting into a powerhouse of pure offense.
"A decent blade," Chessmarimo conceded, drawing his own twin swords with a metallic shriek. "But I am two master swordsmen in one! The fusion of Chess and Marimo! You have three minutes of power? I'll carve you into eighty pieces in one!"
He lunged, blades a whirlwind of steel.
But Chopper was already moving.
Fourth Transformation: Jump Point. His legs coiled and launched him not away, but over the slashing arcs, his body impossibly light.
Chessmarimo's twin heads blinked in unison. "What was—?"
Fifth Transformation: Arm Point. Chopper landed, and his forelimbs swelled, not with bulk, but with corded, tensile strength. He caught the next sword strike bare-hoofed, the metal screeching against his thickened hide.
"Impossible!" the right head, Chess, spat.
"The Rumble Ball doesn't just enhance my three standard points," Chopper said, his breath steadying as his mind, now in Brain Point, calculated at blinding speed. His eyes scanned the abomination before him—the mismatched fusion, the strained join at the neck, the unbalanced stance. "It allows for four supplementary combinations. Seven forms in total."
"Seven parlor tricks!" Marimo's head roared. They attacked in a frenzied, uncoordinated flurry, each head trying to command the shared body.
Chopper flowed between them—Sixth Transformation: Speed Point. He became a blur, a blue streak weaving through the deadly dance. His enhanced mind processed every twitch, every shift in weight, every minuscule delay between the two wills fighting for control.
There.
A flicker of instability. A slight tremble in the chin with every lateral movement.
"Your weakness isn't your fusion," Chopper murmured, sliding beneath a wild swing. "It's your disagreement."
He planted his feet, power gathering in his core.
"What did you say?!" both heads screamed.
"Your chin. It's the anchor point for both of your nervous systems. It's your keystone." Chopper's eyes hardened. "And it's unprotected."
Seventh Transformation: Kung Fu Point.
A perfect fusion of Brain's precision, Arm's power, and Speed's agility. Chopper didn't leap. He appeared in front of the stunned monster, his small body uncoiling like a spring.
"Rumble Ball Special…" he whispered.
"Kokutei Cross!"
His hooves crossed in a blinding 'X', impacting squarely on the jutted, arrogant chin of the Chessmarimo fusion.
A sound like a cracking glacier echoed across the courtyard. The twin screams cut off into a sickening gurgle. The monstrous body stiffened, eyes rolling back in unison, before crashing face-first into the snow, motionless.
Silence, save for the howling wind.
Chopper panted, the Rumble Ball's energy fading, leaving him shivering and small again. He looked at the flag, still flying. He'd done it.
"CHOMPER! THAT WAS AWESOME!"
Luffy's cheer snapped him from his reverie. The captain was bouncing, utterly enthralled by the fight. But as Chopper's gaze swept the empty throne where the king had sat, a cold dread seeped into his veins.
"Luffy… where's Wapol?"
Luffy stopped bouncing. He scratched his head, looking at the vacant spot. "Huh. He was right there…"
*
Inside the castle's stone bowels, Nami pressed herself against a cold wall, clutching her stolen bundle of treasure maps. Doctorine's orders echoed in her head—rest, you fool girl!—but rest didn't pay off debts.
A shadow fell over her.
"Well, well. A stray mouse from the pirate crew."
She froze. Slowly, she turned. King Wapol, his face a mask of furious gleam, filled the narrow corridor. His mouth was already distending, jaw unhinging.
"A little appetizer before the main course!" he gloated.
Nami's legs refused to move. The corridor was a dead end. She was trapped.
"LUFFY!" she screamed.
The stone wall beside Wapol exploded inward in a cloud of dust and rubble. A rubbery fist, extended from three rooms away, slammed into the king's side with the force of a cannonball, sending him careening down the hall with a yelp of surprise.
Luffy stood in the new hole, dusting off his hat. "You called?"
Nami nearly collapsed with relief. But Wapol was already scrambling to his feet, fleeing deeper into the castle. "It doesn't matter! You're too late! The weapon room is mine!"
*
Wapol stumbled into the vast, dark weapon storage chamber, panting with manic triumph. Racks of cannons, barrels of gunpowder, swords, and spears lined the walls. The royal arsenal.
"With this… I'll become the ultimate weapon! The Human Arsenal!" He rushed to the massive iron door, fumbling at his belt. His fingers found nothing. He patted frantically. The key… the giant, ornate key to the room… was gone.
His blood ran cold.
"Looking for this?"
Nami stood at the chamber entrance, twirling the large key on her finger. Luffy stood beside her, cracking his knuckles.
"When we bumped in the hall earlier," she said with a thief's smirk. "I thought it was for the treasure room. My mistake. Still, seems pretty useful."
Wapol's face contorted in pure, undiluted rage. He backed away, then turned and fled up a spiraling staircase. "You think you've won?! The castle still holds my trump card!"
He burst onto the highest battlement, where the kingdom's ultimate weapon sat under a tarp—the Royal Drum Crown 7-Shot Bliking Cannon. A behemoth of black iron and polished brass.
"Fools! Face the royal fury!" He ripped the tarp away.
A chorus of indignant squawks greeted him.
The cannon's barrel, loading chamber, and even the trigger were packed with nesting mountain birds—Chopper's friends—who glared at him with beady eyes, feathers ruffled in protest.
Wapol stood, utterly defeated, his grand schemes reduced to a birdhouse.
Luffy and Nami reached the battlement behind him. The king was cornered, weaponless, alone.
But Wapol's shoulders began to shake. Not with sobs. With laughter. A low, guttural, insane chuckle that echoed off the mountain peaks.
"No weapons… no army… no kingdom…" he wheezed, turning to face them. His eyes were wide, gleaming with a final, desperate madness. "You've taken everything. So I have nothing left to lose… and nothing left to stop me."
He opened his mouth wider than should have been possible. Wider than he ever had before. Not toward them. Toward the castle itself.
"If I can't have Drum Kingdom…" he hissed, saliva dripping onto the stone, "NO ONE CAN!"
And with a monstrous, gut-wrenching CRUNCH, King Wapol began to eat the castle battlement beneath his own feet.
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