Rogrim Island is like a giant furnace, relentlessly forging any creature that enters it. Several days have passed, Straw Hat Pirates members are experiencing pain and transformation in their chosen trials.
On the Gravity Stairway, Zoro had climbed to an area with approximately five times the normal gravity. His bare upper body was drenched in sweat, his muscles bulging, each step leaving deep footprints in the ground. He wasn't using his three swords, but instead performing the most basic sword-wielding movements with his bare hands, each swing feeling as if he were pulling a small mountain. He was adapting, feeling every effect of gravity on his muscles, bones, and even the trajectory of his strikes. His eyes were sharp as knives, as if he wanted to slice through this immense pressure as well!
Deep within the Immense Weight Cavern, the gravity reached a terrifying fifty times! Even Luffy in his Luffy Gear Fourth form struggled to move, his rubber body compressed, yet he roared excitedly, relentlessly pounding the specially crafted rock walls with his rubber fists, honing the concentration of his Haki and the penetrating power of his strength. He seemed to be trying to find a new balance between the flow of Haki and the elasticity of rubber under extreme gravity.
Beneath the Fire Elemental Waterfall, Ace's figure was almost engulfed by the blazing white flames. The intense heat from the outside world and the control over the internal flames created a fierce conflict and fusion. The color of his flames became deeper, changing from bright orange to white gold, and both the temperature and control were steadily improving. He even began to try to convert some of the pressure of the gravitational field into "fuel" for the flames to burn, forging a unique path.
On the Combat Arena, Sanji's Diable Jambe traced a blue path as he clashed fiercely with a local fighter skilled in hardening. Under several times the normal gravity, his speed was limited, but the power and precision of his kicks were honed to a terrifying level under the pressure. He learned how to unleash greater power with smaller movements, making his fighting style more ruthless and efficient.
In the Illusion Corridor, Brook faced not physical enemies, but countless phantoms of Laboon waiting in solitude, and the scene of his Rumbar Pirates dissipating. The chill of the underworld and the sorrow of his soul almost froze him. But he did not succumb; instead, he played his violin, using his music, imbued with rebirth and unwavering resolve, to combat the loneliness within. His soul's fire, pulled between sorrow and hope, became even more concentrated and resilient.
Encouraged by Nami and guided by Robin's knowledge, Usopp and Chopper also began their own "special training." Usopp practiced his precision shooting and the use of special ammunition in a lower gravity zone, and used plants and terrain to set up various traps. Chopper, on the other hand, delved into the effects of gravity on living organisms and developed the " Mighty Strength Gravity Rumble Ball " (experimental stage), which could greatly enhance strength for a short time, but had the side effect of causing extreme weakness afterward.
Franky tormented his mechanical body in the Immense Weight Cavern, causing sparks to fly, before running off to study the energy conduction mechanism of the Elemental Falls. Inspired, he began designing a new weapon system.
Jinbe combines Fish-Man Karate with the impact of ocean waves and the pressure of gravity, making his palm strikes more powerful and restrained.
As Robin deciphered the rock inscriptions, she discovered that they seemed to record an ancient technique that used vibrations (including sound and force vibrations) to induce resonance and disrupt the structure of matter. She called it " Vibration Pulse Technique " and began to study it silently.
Allen would occasionally appear beside them. When Zoro was exhausted, he would point out the subtle stagnation in Zoro's power circulation; when Luffy was charging around recklessly, he would guide him to feel a deeper fusion between Haki and his body; when Ace's flames were on the verge of going out of control, he would help him stabilize his energy core; when Sanji was in a stalemate, he would point out the weak frequency of his opponent's hardening ability... His guidance was often incisive, enlightening his crewmates and helping them break through their bottlenecks.
However, the trials of Rogrim go far beyond that. This island seems to possess its own "will," automatically adjusting the difficulty based on the trial participants' progress, and even... generating corresponding challenges!
As Zoro gradually adapted to the five times gravity and began to move towards the six times Gravity Stairway! They appeared silently, carrying the same power as the surrounding gravity, and swung their swords at Zoro!
When Luffy shattered the tenth specially made rock wall deep inside the Immense Weight Cavern, the gravity field of the entire cave suddenly became disordered and doubled, and at the same time, the ground cracked open, and scorching magma began to gush out!
The real test has only just begun! The Straw Hat Pirates crew will push their limits and face the tailor-made challenges this island has set for them!