One Piece: The user of the Nen-Nen Fruit, who overturned the sea.

The Soul-Soul Fruit ability test is complete.

Roy reunited the divided souls.

Feeling the changes that come after eating the Soul Fruit.

His total mental energy has at least doubled.

This further enhanced the power of the Mind-Mind Fruit.

"It's just one opportunity away."

Roy closed his eyes, feeling the energy of the Soul-Soul Fruit flowing through his body.

He could sense that the fruit, driven by his immense spiritual power, was on the verge of awakening—

Only one hurdle remains. Once he crosses it, the boost from the Soul-Soul Fruit will surely elevate Roy's mental strength to a new level.

Roy opened his eyes and his gaze fell on another treasure chest at the edge of the training ground.

Inside that treasure chest was the most unique of all the fruits he had obtained so far.

The Dark-Dark Fruit, a fruit whose history and truth may have been deliberately concealed by the World Government.

It lay quietly in the treasure chest, its entire body pitch black, awaiting its new owner.

He walked over and opened the box.

Roy picked up the fruit and examined it in his palm.

Don't let me down.

Roy murmured something to himself, then put the Dark Fruit into his mouth.

.....

A few days later, at Roy's private training ground on Beehive Island.

With the combined benefits of the Island-Island Fruit and the Barrier-Barrier Fruit, the entire training ground gleamed with a dark, opulent sheen.

That's the metallic texture that appears when the density of rock is compressed to the extreme.

Tesoro stood on the east side of the training ground, his body wrapped in golden lightning. The lightning seemed to be alive, moving around his body, and liquid gold could be vaguely seen flowing within the arcs of electricity.

"Thunder Metallurgy".

Tesoro gave a low shout and casually pointed to the ground.

The rocky ground beneath their feet suddenly bulged up, and a huge golden spike, more than five meters in diameter, burst forth from the ground, its surface shimmering with a liquid golden luster.

Immediately afterwards, the arc of electricity from his fingertips leaped onto the golden spike, and the lightning and gold merged in an instant, transforming the entire spike into a giant conductor shimmering with golden lightning.

"Lightning Gold - Earth Spikes"

Tesoro's lips curled up slightly, and with another flick of his finger, the golden spike exploded, transforming into hundreds of tiny golden needles that shot out in all directions.

Each flying needle was wrapped with golden arcs of electricity, nailing itself to the barrier at the edge of the training field, exploding into clusters of golden plasma sparks.

Barr stood at the edge of the training field, his hands on the ground, a thin layer of sweat beading on his forehead.

The moment those flying needles struck the barrier, he could feel the pressure the Barrier Fruit was under—

Each of these flying needles has enough penetrating power to pierce through the armor of a warship.

"Tezzolo, that guy, he's really ruthless."

Baal gritted his teeth and urged the Island Fruit to reinforce the damaged barrier.

On the west side of the training field, Bages was standing in an area that had been specially reinforced.

He took a deep breath, and the muscles in his right arm began to swell.

The power of the Power-Power Fruit was operating at high speed within his body, causing his muscle fibers to bulge and his veins to writhe under his skin like earthworms.

His right fist clenched tightly, and a white halo began to gather on the knuckles.

The halo was initially only the size of a fist, but as Bages' breathing became heavier, the halo began to expand rapidly, and the surrounding air was shaken and made a buzzing sound.

"The Tremor-Tremor Fruit—open it for me!"

Bages roared and slammed his right fist into the sea in front of him.

"Boom!"

The white aura on the fist exploded the moment it was struck, turning into a visible shockwave that spread towards the sea.

Where the shockwave passed, the air was torn apart into countless tiny cracks.

Then the shockwave hit the sea surface.

The sea surface within a radius of several kilometers was directly smashed into a fault line by an invisible, enormous force.

The seawater surged up to both sides, forming two white walls of water tens of meters high, with a bottomless black ravine visible in the middle.

At the bottom of the ravine, exposed seabed rocks can be seen, which continue to crack under the aftershocks of the tremors.

Bages remained in his punching stance, panting heavily.

The muscles in his right arm were trembling slightly—the punch he had just received gave him a more direct feel for the power of the Tremor-Tremor Fruit.

"Is this the power of the Whitebeard?!"

Burgess looked down at his fist, the afterglow of a white halo still lingering on the knuckles.

"Wow, that's strong! Hahaha!"

Savi stood on the south side of the training field, and his test was much quieter.

Transforming into his human-beast form, he slowly raised his right hand, palm facing a giant rock specially created by Baal in front of him.

"Rejection and Pushing the Palm".

A pale blue light suddenly lit up on Savi's palm.

The thousand-ton boulder seemed to be struck by an invisible giant hand, the entire rock was uprooted from the ground, and then shattered with a deafening roar.

Savi withdrew his hand, looked down at his own hand, then at the boulder that had been shattered into dozens of pieces, and a satisfied smile appeared on his lips.

This is just basic usage.

If it were a full-force attack—a single, all-out strike—it should be able to blast a mountaintop away.

He flexed his fingers, then raised his palm again, aiming it at the empty space in the center of the training field, which had been riddled with holes from all the testing.

This time, he didn't rush to strike, but instead continuously compressed the repulsive force in his palm.

The light blue film gradually deepened in color, changing from light blue to dark blue, and then from dark blue to almost black dark blue.

The surrounding air began to distort and deform under the pressure of this repulsive force, and the pebbles on the ground were pushed in all directions by an invisible force.

"Repulsion Force - Ultimate Explosion".

Savi struck out with his palm.

After the shockwave dissipated, a giant crater with a diameter of over 100 meters appeared in the center of the training field, where the ground had been modified by Baal.

The edges of the pit were as smooth as a mirror, and the rocks at the bottom were compressed to their limit, gleaming like glass in the sunlight.

Savi stood at the edge of the pit, his breathing a little rapid, but the excitement in his eyes did not diminish in the slightest.

"If that palm strike had landed on a warship—"

"It can flatten a large warship into a discus."

Roy's voice came from the entrance to the training ground.

He walked slowly into the training field, his gaze sweeping over the ditch before settling on Savi.

"With the Repulsion Fruit combined with your fighting skills, your close-combat ability has at least tripled."

Savi grinned and gave Roy a thumbs up.

"Captain, you've come at the right time—Brother Barrett can't hold back any longer."

Roy turned to look at the north side of the training field.

Barrett was standing there, his White Tiger form fully unleashed.

The white tiger stripes throbbed violently beneath his skin, and his body was surrounded by awakened flames and black-red lightning.

His muscles were bulging, and he was a whole size bigger than usual.

Each breath was accompanied by a deep tiger roar.