One Piece: Fist of the World

"This is truly difficult!"

Law battled Gula, his body weary. Gula, rich in combat experience and possessing formidable physical prowess, seemed to also have Observation Haki, consistently evading Law's diverse attacks.

Meanwhile, Nia quickly shook off the initial emotion of reuniting with her brother after such a long separation. Her yellow, vertical pupils narrowed, fixated on his movements.

"You haven't just been playing around these past few years, have you?" Neo suddenly vanished from Nia's sight, reappearing instantly behind her, kicking her shoulder once more.

Nia barely dodged Neo's attack, rolling awkwardly on the ground.

"Your strength hasn't improved at all!" Neo didn't relentlessly pursue her. He waited for Nia to regain her footing, then spoke softly. "Looking at the direction you're heading, you're planning to go to the Grand Line. With your current strength, there's no way you can survive in that ocean."

"Besides, you even tangled with Doflamingo. I truly don't know what you were thinking. Even if you're ignorant, there should be a limit."

"Huh! I haven't seen you for a few years, and you've gotten quite eloquent, Neo!" Nia glared fiercely at her brother, a prickle of annoyance rising within her. It was anger at herself.

Though she had described her brother as a complete genius when explaining family matters to Rhodes, she had always been stronger than he before she ran away from home. Yet, after a few exchanges, she sadly realized she seemed to be no match for Neo.

What have I been doing all these years!?

She'd claimed she wanted to break free from her family's shackles, but she'd forgotten that only sufficient strength could guarantee that freedom.

"You should come home with us. If you're worried about the king, there's no need. Dawson Bourbon is dead. The king now is Dawson Flynn."

"Dead?" Nia was slightly stunned by Neo's words. The king who had once pressured her so much that she had to flee was dead? "Although I've always called him an old fool, he was only about forty years old, and I haven't heard of any serious illness before. How could he die suddenly?"

"Who knows?" Neo's expression remained unchanged. "So, you should come back with us."

"The one accompanying us this time is Vice Admiral Onigumo of Marine Headquarters. He is a hawkish general of the Navy. I'm afraid none of the pirates on this island will escape. Although you defeated a Rear Admiral of Marine Headquarters, Bastille, before, Vice Admiral Onigumo is completely different from him. His strength is among the very best of all Marine Headquarters Vice Admirals."

"Excuse me, but I'm afraid there's no chance of escape for you."

"It seems I have to get rid of you as soon as possible!" Hearing Neo's words, Nia's expression shifted slightly. She then leaned forward, the corners of her mouth curving into a slight snarl, revealing her sharp teeth, and two black cat ears emerged from the top of her head. "If I haven't finished this fight after Rhodes has dealt with that Onigumo Vice Admiral, I'm afraid he'll laugh at me."

"Devil Fruit?" Seeing Nia's transformation, Neo understood. "Is this your reliance? However, the fruit alone cannot eliminate the gap in strength between us."

"I haven't seen you for a few years. How come you've become so verbose?" Nia's body suddenly appeared in front of Neo, her right hand forming a claw, and her sharp palm lashed out.

"Soru? It seems you've learned something." Neo immediately recognized the technique Nia was using. "But it's too immature!"

Leaning his body back to avoid Nia's attack, Neo capitalized on the opening and kicked out, striking Nia in the chest and sending her flying through the air.

"Soru!" The next moment, Neo's body materialized in mid-air, right beside Nia.

"The Navy's Six Powers are secret techniques of the Navy—physical techniques that surpass the limits of the human body. Among them, Soru can be considered a basic move. To use this move well, in addition to having physical fitness beyond that of an ordinary person, one must also accurately grasp their own strength."

"And once you've mastered Soru, Moonwalk will be a natural progression."

Neo took a step forward in mid-air, but he didn't fall. Instead, a series of "bang bang bang" sounds erupted, as if he were stepping on invisible air, allowing him to remain suspended.

Nia, after being kicked into the air, controlled her body to twist, still attempting to lash out with her claws at Neo, but he easily avoided her attacks with the Moonwalk, leaving her to fall helplessly to the ground.

Looking up at Neo, who was effortlessly stepping on air, Nia frowned slightly.

"After you've mastered Soru and Moonwalk, Rankyaku will be a natural progression." Neo hovered in the air, looking down at Nia, his voice reaching her clearly. "The so-called Rankyaku is a super-fast and powerful kick that creates a vacuum and slashes at the opponent. This move requires a higher level of strength, and it's necessary to exert a very strong force in a very short time. Anyone who can master the Soru and Moonwalk skillfully basically meets these conditions."

"This move, when practiced to a high level, can easily split a target in half. Just like this!"

As he spoke, Neo landed on the ground and unleashed a fierce kick, followed by an arc-shaped slash flying towards Nia. After Nia dodged it, a massive crack was left on the ground.

There's a flaw!

Seizing the opening in Neo's attack, Nia suddenly surged forward, pouncing in front of Neo, clenching her claws into fists, and assaulting him fiercely.

"Iron Body!"

Facing Nia's attack, Neo didn't dodge at all. He let out a low roar and met her punch head-on.

So hard!

Feeling the impact of the fist, Nia was startled for a moment, then took a step back, her body instantly recoiling.

Neo, who had taken Nia's punch, spoke without changing his expression. "Iron Body is a defensive technique. By accelerating the blood flow, the muscles move faster, and strength is pumped into the well-trained body, making it as hard as iron, so that even bullets and swords cannot penetrate it."

"On the other hand, you can gather all your strength into your fingers and use your hardened fingers to launch a strike in a flash. This move has the power of a bullet. It's called Finger Gun!"

Neo rushed to Nia in the blink of an eye, and before she could react, he poked his finger into her shoulder.

Puff—

Neo's finger pierced directly through Nia's body, leaving a bloody hole.

"It's just like this!"

"Hateful!" Nia's movements were inevitably affected by the piercing of her shoulder, but she still took advantage of Neo's proximity to attack him frantically.

"Finally, there's Paper Art, which is also a defensive technique. However, unlike Iron Body, which requires the entire body's strength, this move requires the entire body's strength to be released. Through the changes in the airflow caused by the opponent's movements, the body can become as thin as paper, and it can be easily controlled, allowing one to avoid any attack directed at oneself at the last minute."

Neo gave up all attacks, his whole body as light as a feather, yet he was able to avoid all of Nia's attacks and still speak calmly.

This little devil! Nia frowned slightly, looking at Neo. The gap in strength between them was too vast! Her attacks had absolutely no effect on Neo, while Neo could easily inflict damage on her.

But, is this little brat trying to play tricks on me in this way? I don't need his hands-on teaching like this!