One Piece: A Side Story – The Forgotten Isle

The battle with the massive guardian raged on as Luffy, Zoro, Sanji, and the rest of the crew moved with precision, trying to exploit any weakness they could find in the stone behemoth's form. Each of their attacks seemed to barely make a dent, but the crew's determination only grew stronger. 

Luffy swung his fists with incredible force, each punch stretching and landing on the guardian's stone body. "You're not getting away that easy!" His attacks caused cracks to form, but the guardian's stone structure began healing almost immediately. 

Zoro didn't stop, slashing his swords with incredible speed. "We need to hit it harder!" His blades clashed against the creature's legs, but it barely reacted. 

Sanji, his legs a blur of powerful kicks, aimed directly for the creature's chest, where Robin had noted its core was. But just as he landed a powerful kick, the guardian's hand shot out like lightning, knocking Sanji away with a single swipe. 

"Sanji!" Luffy shouted, but Sanji quickly recovered, grinning even as he wiped blood from his lip. "Not bad for a big guy." 

The guardian's eyes glowed fiercely as it roared, sending shockwaves of energy through the room. It swung its arms at the crew again, sending the group scattering. 

Robin, using her powers to sprout limbs in different directions, caught the fallen crew members one by one. "We can't keep attacking blindly!" She looked at the massive creature, deep in thought. "There must be something that connects it to the island's power. If we destroy the source, it should stop regenerating." 

Zoro nodded, already on his feet. "Then we target the source! But how do we reach it?" 

Chopper, now in his Monster Point, looked up at the giant golem. "We need something that can break through its defense!" 

Suddenly, Usopp's voice rang out. "I've got an idea!" He pulled out his latest creation, a large cannon-like contraption that had been loaded with an explosive pellet. "It's not much, but it might just do the trick!" 

"Make sure it's big enough to make a dent," Luffy said with a grin. "We need to finish this!" 

As the crew regathered their focus, the massive guardian charged forward, roaring in fury. The ground cracked beneath its feet, and the chamber began to rumble as it prepared for its next attack. 

"Now!" Usopp yelled, setting his contraption into motion. The cannon fired, a huge blast rocketing toward the golem. The explosion hit its chest, right where the glowing runes began to flicker. For the first time, the creature staggered, its healing process disrupted. 

"Keep attacking!" Robin commanded, her limbs extending to restrain the guardian's movements. Zoro, Sanji, and Luffy rushed forward, each targeting the weak spot. 

As Luffy's fist collided with the stone again, he felt the pulse of energy from within. This time, the cracks in the golem's body widened. The creature howled in agony, and the room's glow intensified. 

"We're almost there!" Luffy shouted, his fist smashing into the core once again. This time, the energy surrounding the guardian began to flicker wildly, and the stone beast's form began to crumble. 

With a final, deafening roar, the guardian exploded into a cascade of stone fragments, and the chamber fell silent. 

Luffy, panting but grinning, stood amidst the dust. "We did it!" 

But as the dust settled, the island's tremors grew stronger. The cloaked figure stepped forward, their eyes dark. "You've passed the test. But the true challenge has only just begun." 

To be continued…