Super Fighting Tokyo.

Katsumi: "..."

Retsu Kaioh: "...?"

Bai Mucheng smiled and waved his hand, explaining, "Ultimate techniques are inherently a kind of 'complete form,' and it's easy for people to develop fixed mindsets."

"Compared to that, ordinary punches and kicks with fluctuating power are more appealing to me."

"—This is what I think."

As Shiraki thought about his own exhaustion, various thoughts kept running through his mind, and he became happier and happier as he talked.

"Don't you think it's fun? So come and try it out, Katsumi-kun!"

Shiramu Cheng's eyes gleamed with a fervent and thirsty light.

"Given your unique talent, to what extent can you hone your 'fist'? And what realm can you explore?"

Chapter 531 Complete Techniques and Infinity

Swish.

Bai Mucheng, who was sitting cross-legged on the floor, gently threw a punch.

"Look, such a simple move, whether it's an elementary school student, Yujiro Hanma, or Pike, they can all do it."

"But precisely because of this—precisely because it is so ordinary—there is no 'limit' to it; in other words, it is infinite!"

"..."

Bai Mucheng's words made Yudi Keji and Liehai Wang realize something.

Another person who arrived later also shared this sentiment—

【Battle God】Gaolang Unsavardo.

Like Shiraki Sei and Retsukai, he was a specially invited instructor of the Shinshin Society, and therefore would occasionally come to the Shinshin Society for exchanges.

After finishing their practice session, Gaolang heard that the three of them had gathered in the dojo on the fifth floor. Curious, he came over and overheard their conversation.

This "God of War" still had those dead fish eyes.

However, it is obvious that his body is more robust than before, and his limbs are more powerful, which must be due to the increased amount of training recently.

No wonder.

After all, Pike's sudden appearance was a major event that kept those guys who were pursuing power up at night.

Even just a glance will unconsciously make you want to become stronger.

"If you want to go further, you can't rely on trying to create something new."

"We need to take things a step further in what we're focused on..."

Gaolang placed his handbag on the sidelines, then leaned against the wall, crossed his arms, and watched from the sidelines, participating in this "exchange meeting."

"..."

Listening to Gaolang's words, and combining them with what Shiraki had said earlier, Guji Katsumi also felt something.

"Indeed, that's what I think too..."

"Don't pin your hopes on suddenly creating something; focus on what you already have."

"—My Sonic Fist."

"Also, the 'physics' and 'weapons' I've encountered."

As he spoke, Katsumi went to the box by the field and started rummaging through it, explaining to everyone as he searched.

"Miss Wu Fengshui isn't here. She should be very familiar with it, after all, she's into guns."

"When we use a high-speed camera to record the fired 'bullets,' we can faintly see some 'lines' at the tip of the bullets."

"Like a plastic film, it was bent by the bullet."

That's a 'shockwave'.

"—The shockwaves produced by bullets, jet engines, gunpowder explosions, etc., also indicate that the speed exceeds the speed of sound."

"But this kind of supersonic speed, which should be produced by gunpowder or jet engine, can be achieved by manpower using a prop."

"That's it—"

Keji stood up and took out a weapon, a long whip, from the box. It was made of leather and was more than two meters long.

"If used properly, the speed of this weapon's tip can exceed the speed of sound!"

Having said that, Keji brandished his long whip.

Swish—smack!

The tip of the whip twitched, striking the air and producing a sharp, piercing sound that echoed throughout the dojo.

The other three could see it very clearly as well.

Retsu Kaioh nodded in conclusion, "It was just a swing in the air, hitting nothing, but it produced a deafening cracking sound, announcing the moment of exceeding the speed of sound."

"...That's right."

Katsumi put the whip back in its place and looked at Gaoran.

"Whether it's the whip or my sonic punch, they all use the same principle."

"If the whip strikes are likened to the boxing of the God of War, then my sonic punches are probably at the level of an average enthusiast."

"So, how can we make it faster?"

"..."

As he spoke, Katsumi took off his gi shirt, revealing his muscular physique more clearly.

He stepped forward with his right foot, pulled his left leg back sharply, raised his left arm into a fist, and pulled his right fist back tightly, pushing the tension of the movement to its limit.

"The true speed of sound is 1225 kilometers per hour."

"Using the principle of sonic punch, if you were to activate all ten joints starting from the big toe, each joint would need to travel at a speed exceeding 100 kilometers per hour."

"--it's out of the question."

"..."

"indeed."

Gaolang nodded. "This kind of physical problem is completely different from the 'jab'; it's a different field altogether."

Retsu Kaioh then analyzed, "The jab is the 'start,' while the sonic punch is 'acceleration using joints,' but the problem is..."

Shiraki Sei added, "Only ten joints—that's too few."

"That's right, it's too little."

Katsumi nodded, then patted the back of his hand. "In that case, let's use the spine, that is, the vertebrae!"

"Use the spine, which connects to thirty-one bone plates, to simultaneously accelerate seventeen of those plates that are related to movement!"

"With 27 movable parts, it can break the sound barrier!"

Snapped!

Katsumi pushed off the ground with his left foot, the force transmitted through his joints, and with a "thrusting" motion, he threw out his left fist, producing a loud "smack".

At this point, the power of this punch was comparable to the "whipping" just now.

But Katsumi's thinking did not stop.

"However, this level is far from enough to penetrate Piccolo's thick muscle fibers."

"That guy's opponent used to be a dinosaur!"

"Therefore, we must continue to explore this technique..."

Katsumi Oji raised his palm. "And I think the key is to apply faster speed and heavier weight to the hand."

He pointed to his knuckles.

"Use the first to third joints that drive your fingers, and accelerate them further!"

"And if you want to add weight at this ultra-high speed, you'll need to rely on this—"

Ke Si pointed to his head.

"With a headbutt? No, no..."

"You need to use the weight of your head."

"The heaviest part of the human body is the head, so you need to get the head moving completely and put the weight on speed!"

As soon as he finished speaking, Katsumi used the speed of a sonic punch to deliver a powerful thrust.

The sharp, penetrating hand combined with the weight of the head instantly broke the sound barrier, as if even the air itself was being torn apart.

Clang—!

A piercing cracking sound echoed in everyone's ears.

The most complete weapon in the history of karate is now finished!

"..."

"Now it's finally 'complete'."

Katsumi Yuji maintained his thrusting motion, still savoring the afterglow of the move.

Retsu Kaioh couldn't help but exclaim, "The combination of Sonic Fist and Piercing Hand, if I had to describe it, would be a military knife with the weight of an axe."

In other words, you have obtained a weapon that could not possibly exist!

"..."

Bai Mucheng couldn't help but clap his hands and exclaimed, "Such a speed of comprehension truly lives up to the name of 'Ultimate Weapon,' a talent that I myself do not possess..."

Upon hearing this, Gaolang glanced at Bai Mucheng and said, "Everyone has different talents, including you."