One Piece: With Sign-in System

"Sand Pattern!"

The yellow sand below transformed into massive sand dragons, charging toward Ron in the air, trying to bite and devour him.

Ron raised his sword and swung it through the air.

Several slashes infused with Haki instantly severed the sand dragons into multiple pieces, scattering them into fine sand that could no longer hold its shape, falling to the ground.

"Arc Crescent Sand Dune!"

Crocodile's sand-formed right arm swung toward Ron in midair. The sand-formed arm enlarged, taking on the shape of a crescent moon as it slashed toward Ron from above.

If touched by his sand blade, Ron would instantly have his internal moisture drained.

But Ron had no intention of dodging.

Descending from the air, Ron took a light breath, and the sharp, clear blade of Raikiri began to glow with flowing blue water. In a vertical stance from high to low, he slashed down toward the ground.

"Water Breathing, Eighth Form, Waterfall Basin."

The powerful Haki-infused and water-charged slash shattered the massive sand blade, and the scattered yellow sand, now absorbing water, fell to the ground.

Immediately after, Ron, holding the Raikiri wrapped in flowing blue water, rushed toward Crocodile at high speed, his body spinning, slashing repeatedly as his strikes gathered power.

Like a blue water dragon, it swirled and moved with fluid grace!

Water Breathing's Tenth Form: Constant Flux!

Crocodile clenched his teeth, extending his palm to the front and forcing it down.

"Sand Burial!"

The earth suddenly trembled!

The land on both sides of the "water dragon" cracked and turned to sand, rising like a sea toward the center to bury the water dragon.

However, as the yellow sand approached, it suddenly grew heavier and fell to the ground, absorbing the water vapor surrounding the water dragon.

"Damn it!"

Crocodile never expected that his abilities would be countered by a sword technique.

Looking at the powerful blue water dragon charging toward him, his eyes grew dark and intense.

If he wanted a fight, then let's test it out!

"Desert Sword!"

Crocodile's intact left arm instantly transformed into a sand blade, slashing downward from top to bottom!

The ground before him split open, and the huge, sharp sand blade collided head-on with the powerful blue water dragon formed by the sword's force!

Clang!

The yellow sand and flowing water collided sharply, clearly defining the difference between them!

The violent shockwaves spread out in all directions, shattering nearby houses or eroding them with sand.

On the cracked earth, Crocodile's half of the ground had completely turned to sand, while the area Ron occupied was rapidly regaining life.

When Nico Robin slowly regained consciousness, what she saw was this scene.

Her boss, Crocodile, one of the Seven Warlords of the Sea, had transformed his hand into a sand blade. With a cigar clenched between his teeth and a grim expression on his face, he clashed fiercely against the mysterious black-haired boy who had knocked her out earlier, now wielding a long sword.

The overwhelming and violent forces of both parties collided, rapidly increasing, with shockwaves spreading in waves, the winds howling and yellow sand swirling. Even Nico Robin, who had seen many battles, was left stunned.

What in the world... is happening here?!

"Is this really the strength of one of the Seven Warlords of the Sea, Crocodile?"

Ron looked up at Crocodile, who was much taller than him, and chuckled, his expression casual.

"When compared to the other Warlords I've fought, it seems like you're only slightly stronger than Gecko Moria."

"Don't talk big!"

Crocodile's eyes narrowed slightly.

In an instant, streams of flowing sand began to wind around Ron from the ground.

At the same time, a golden hook mounted on Crocodile's other arm glinted coldly, slicing through the air as it dropped mercilessly toward him.

The hook's tip had a purple tint, clearly coated with a deadly poison.

"Yayo yayo."

Ron stepped on the ground that had once again solidified, evading the strike in the nick of time and disappearing from Crocodile's sight. The next moment.

With a sharp gust of wind, an incredibly fast and powerful whip kick struck Crocodile heavily from his left side.

Crocodile's towering body flew like a cannonball, and in the astonished gaze of Nico Robin, he was sent flying far away. After smashing through several buildings on the eastern edge of Rainbase, he landed in the desert outside the city and slid dozens of meters before coming to a stop.

Nico Robin looked in the direction Crocodile had been sent flying, her disbelief evident.

That was one of the Seven Warlords of the Sea, the King of the Desert, a user of the Logia Sand-Sand Fruit!

How could... he be sent flying like that?

She turned her gaze toward the mysterious youth who stood holding a gleaming long sword, the one who had just sent Crocodile flying.

Who is he?!

As she watched, the black-haired boy reached out with his left hand, his palm seemingly disappearing into the air. When he pulled it back, he was holding a large wine gourd.

He held the sword in one hand and the wine gourd in the other, pouring the drink into his mouth.

"A Devil Fruit user, huh..."

Robin thought to herself, unable to stop wondering.

Is he a new pirate? Or someone trained by a secret organization?

What kind of Devil Fruit power does he have?

Is it related to space?

Just as she was lost in thought.

A young, somewhat naive voice suddenly spoke in her ear.

"Nico Robin."

Robin snapped out of her thoughts, only to find that the black-haired boy was no longer in front of her.

She quickly turned around, scanning the area.

As she turned, she immediately saw the mysterious young man who had somehow appeared beside her, standing shoulder to shoulder with her, facing the opposite direction.

A cold sweat dripped down from Robin's forehead.

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