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The moonlight shone brightly at night, casting a soft glow over the coastline.
The fierce battle continued, with each violent clash sending shockwaves rippling outward, kicking up clouds of dust and sand.
Saul, struggling to find the right words, exhausted his entire vocabulary as he described the scene over the transponder snail.
Yet, the phrase he repeated the most was, "Arashi was slashed, but he's not hurt!"
"He got slashed again, and still, he didn't die!"
"It's strange—Arashi used Tekkai. Huh? He can use Tekkai in battle?" Saul's surprised exclamations gave Sengoku pause.
He was well aware of the Rokushiki techniques, especially Tekkai, which primarily serves as a defensive skill.
Once mastered, the body can easily withstand bullets and ordinary blades.
However, its weakness lies in its inability to move while used, leaving the user to endure attacks passively.
Because of this limitation, most practitioners are reluctant to use it, resorting to Tekkai only when they cannot dodge an attack.
Even then, those who rely on it often face grim fates, which is why many consider it a useless skill and unworthy of training.
However, Sengoku also knew it would be a different story if Tekkai were honed to a certain level, allowing it to be used actively in combat.
At that stage, the user would overcome the weakness of immobility, and the technique's defense and hardness would increase further.
Continued refinement could even allow the user to reflect the force of attacks upon impact or harden specific body parts to make them as tough as weapons.
If combined with Armament Haki, the attack power would be significantly enhanced.
At this moment, Arashi was experiencing the full potential of Tekkai.
With Tekkai at level 30, his defense had increased dramatically, and he could use it even while moving at high speed.
His body felt as if it were made of steel, with muscles like tightly coiled springs.
When he punched or kicked, the power was terrifying. A single punch could shatter a large ground area without using Conqueror's Haki.
Arashi didn't care much about defense; his main purpose in leveling up Tekkai was to increase the hardness of his fists and body, thereby amplifying his overall strength.
He also sensed that if he continued to develop this technique, he could concentrate the effects of Tekkai in specific areas of his body, further increasing the localized defense and hardness.
If focused on his fists, they would truly become Iron Fists! This technique was similar to Armament Haki in some ways, although it couldn't affect Logia users.
The night passed quickly, but the battle showed no signs of ending.
One has to admit that humans possess monstrous physical capabilities in the world of pirates. Both sides fought to the death, barely pausing for rest.
Garp and Roger had already fought to the island's center, where brilliant flashes of light and violent shockwaves continuously swept across the landscape.
After a night of intense fighting, Arashi had leveled up Tekkai to 50.
He could control it freely at this level, concentrating the defense that once covered his entire body on specific areas.
Wherever Arashi directed his thoughts—his fists, feet, arms—he could strike with the utmost power.
Even the slightest touch of sand against his skin would trigger Tekkai's muscle reflex, sending the grains flying with the force of bullets.
This newfound strength made Arashi's attacks even more formidable in his battle with Rayleigh.
"You're starting to resemble that monster, Garp, more and more," Rayleigh remarked with a hint of admiration, his gaze serious.
He could see this young man before he was indeed a monster, growing visibly stronger with each passing moment in their fight.
By now, Arashi's fists had truly earned the title of Iron Fists. Perhaps even real steel wasn't as hard or resilient as his body had become.
The battle seemed endless, especially for Arashi, who felt no fatigue. Another day passed in the blink of an eye.
The frequency of his deaths had decreased significantly as he gradually grew accustomed to the rhythm of his fight against the Dark King, Rayleigh.
Arashi had leveled up Rankyaku to level 35.
The enhancement of his fists and legs, combined with Soru's high-speed movement, put immense pressure on Rayleigh.
With swift body movements, Arashi's legs spun like a top, relentlessly attacking him.
"Rankyaku!"
With a simple Rankyaku, Arashi unleashed terrifying slashes, slicing through the forest ahead and cutting it down to the ground for kilometers.
"This kid might be the most terrifying user of the Rokushiki techniques I've ever seen!" Rayleigh marveled to himself.
By the third day of their battle, he began feeling fatigued and witnessed firsthand Arashi's frightening growth rate.
He started to suspect that he might have become Arashi's whetstone, sharpening his skills.
By the fourth day, Rayleigh noticed that Arashi had started using Shigan.
His fists turned into fingers, and the terrifying piercing force left Rayleigh astonished.
Even more outrageous was that Arashi infused his fingers with Conqueror's Haki.
Under the black and red lightning, Shigan pierced the air, sending a dreadful shockwave that extended for tens of kilometers.
Facing this attack, Rayleigh had no choice but to use Observation Haki to dodge, fully aware that if he didn't, his body would likely be pierced through.
"Shigan!"
"As I thought, when combined with localized Tekkai hardening and Conqueror's Haki, the piercing power is even stronger," Arashi thought excitedly.
He systematically tested each of the Rokushiki techniques, and it was clear that, after reaching higher levels, they had undergone a qualitative transformation.
This also signified that his power had reached a new level of mastery.
Now, he had enough strength to survive in this world without fear of the bizarre and dangerous situations he might encounter.
When he first arrived in this world, despite being able to resurrect, he could still be captured, imprisoned, or worse—if he fell into the hands of twisted scientists, he might be dissected for research.
Immortality does not mean invincibility. Fortunately, Garp saved him and allowed him to train under his guidance.
Through countless deaths and experience points, he finally raised his strength to this level.
He could hold his own in battle, even against the Dark King Rayleigh.
"Shigan!"
Arashi attacked again, moving at high speed.
"Bang!"
The air trembled, and a finger-shaped shockwave, crackling with black and red lightning, shot toward Rayleigh.
Rayleigh quickly dodged, and in the next second, a massive explosion echoed, sending a violent shockwave rippling outward.
Just from the sheer force and scale of the attack, no one would believe that this was merely the Shigan technique from the Marine's Rokushiki arsenal.
"He's taken the Rokushiki techniques and added his twist," Rayleigh remarked.
The next instant, he swung his sword and charged at Arashi again. "I want to see just how much stronger you can get."
The relentless battle continued.
As a Battle Commentator, Saul tirelessly relayed the details of the fight to Sengoku through the transponder snail, causing Sengoku to experience shock after shock.
As he mentally sketched out Arashi's image and compared it to his power and techniques, he came to an initial conclusion.
"Arashi might have already reached a power level close to that of an Admiral!"
"But...!"
"How is that even possible?!"
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