A combat technique with growth potential

"Buzz--"

The long sword began to tremble in front of Shen Heng.

With Shen Heng's control, the tremor became faster and faster before gradually stabilizing.

"Dozens of vibrations per second?"

"If we increase the output of Origin Power, this frequency can be increased even further, to the highest possible level..."

Shen Heng increased the output of his Origin Power.

The sound waves intensified the vibration of the blade, causing it to vibrate more rapidly before gradually stabilizing.

"With a single sonic wave, the fastest it can currently vibrate is only a few hundred times per second...?"

"Next, let's try layering."

Shen Heng slowly opened his mouth, and the new sound waves superimposed on the constantly trembling longsword.

The moment the sound waves were superimposed, the longsword suddenly emitted a audible tremor.

The blade's vibration frequency suddenly increased to several thousand times, then stopped at an extremely fast speed.

Li Daoyi witnessed the entire event from the sidelines.

He turned to look at Shen Heng, who was frowning, and asked:

"What's wrong?"

"If it's just a sound wave, then it's simple; just let the sound wave vibrate the blade."

Shen Heng recounted the troubles he had encountered.

"But when the second sound wave is superimposed, the two sound waves will interfere with each other."

"Furthermore, the blade itself emits sound waves when it vibrates."

"However, when there's only one sound wave, that sound wave can be easily suppressed."

"However, when the second sound wave appears and interferes with the first sound wave, the sound wave emitted by the blade vibration will also interfere with this process."

"And unlike in the tunnel, where I only need to guide the sound waves, the tunnel walls will automatically reflect them back."

"But attaching sound waves to a knife is different; the sound waves will instinctively radiate outwards."

"Therefore, in order to maintain the blade's vibration, I need to constantly maintain the presence of sound waves."

Simply put...

"Although it may seem like just adding a sound wave, the difficulty actually increases exponentially."

"So, you can only superimpose one sound wave onto the blade at this point?" Li Daoyi asked.

Shen Heng pondered for a moment, then did not reply.

He picked up the long knife and tried again.

The first sound wave superimposed on the longsword, causing it to vibrate smoothly.

Then came the second course...

The two sound waves collided right in front of him, followed by the sound waves from the vibration of the longsword itself.

The three sound waves collided and then rippled outwards in a manner consistent with the laws of physics.

Shen Heng took a deep breath and focused all his attention on the blade.

He stopped trying to forcibly control the sound waves and began to fine-tune the frequency and direction of each sound wave.

The first sound wave remained straight ahead, while the second sound wave was slightly deflected by his adjustment.

Just as the two sound waves were about to collide, Shen Heng suddenly changed the frequency of the second sound wave, so that it just barely grazed the edge of the first sound wave.

The sound waves generated by the blade itself were guided by him to spiral around the two main sound waves.

Shen Heng frowned slightly, but his hand movements became even more steady.

Under his precise control, the three sound waves gradually stabilized.

The first sound wave is responsible for maintaining the basic vibration.

The second sound wave provides additional amplification;

The vibration of the blade itself is confined within this framework and no longer causes interference.

Li Daoyi narrowed his eyes slightly. He couldn't see the specific situation, but he knew that the frequency of the vibration of the long sword in Shen Heng's hand had stabilized.

"Is it finished?"

"Hmm." Shen Heng took a light breath, relaxing slightly.

"Can we add a third one?" Li Daoyi asked.

"It's not possible right now." Shen Heng looked at the trembling longsword in his hand.

"Don't be fooled by how stable things seem now; it actually requires my constant effort to maintain."

"The vibrations will stop immediately once I stop maintaining them."

"In this situation, for every additional sound wave, I have to dedicate more energy to maintaining it."

Is it similar to multitasking?

"Um."

"You just mentioned three sound waves, which means you can already multitask." Li Daoyi looked at Shen Heng and shook his head again.

"No, you still want to talk to me? Trying to multitask?"

"Looks like you've mastered the Mysterious Gate Visualization Method quite well!" Li Daoyi smiled. "How's it going? Have you reached the first level of Clear and Pure Spirit Platform yet?"

"Not yet," Shen Heng shook his head, "But it should be soon. I'm memorizing things faster and faster these days!"

Li Daoyi estimated the time he would give Shen Heng to come up with an idea, and then nodded in satisfaction.

He glanced at the long sword that was still trembling in Shen Heng's hand, then raised his hand and reached out.

"Try chopping it off my hand, let me see how powerful it is."

"This..." Shen Heng opened his mouth, but didn't say anything.

"Don't flatter yourself. At your current Tier 2, even if you used an S-Class combat skill, you couldn't possibly cause me any damage!" Li Daoyi saw what Shen Heng was worried about.

"Or do you believe that your sword, which combines two sonic waves, is more powerful than S-Class combat technique?"

"Uh, no, that's not true."

Li Daoyi said that, Shen Heng had no choice but to raise his long sword and bring it down on Li Daoyi's palm.

The long sword collided with his palm, but as Li Daoyi had said, nothing happened.

"Hmm, it should be roughly equivalent to a B-Class power."

Li Daoyi felt the force in his hand, then lowered his hand and sighed:

"If you were to add a third, fourth, or fifth sonic wave, its power would eventually reach the bottom of S-Class."

"Unfortunately, only you can use it."

"Sound wave systems and vibration systems should be able to work," Shen Heng said.

"That's true." Li Daoyi. "I suggest you go to Martial World Easy Exchange for evaluation after you develop the third and fourth sound waves. Otherwise, if someone else learns it and develops it first, it will cause problems later."

"Okay, I understand!" Shen Heng nodded and dispelled the vibration of the long sword in his hand.

Li Daoyi glanced at Shen Heng's actions and smiled:

"Kid, want me to teach you a method that can save you a little energy?"

"What method?" Shen Heng turned to look at Li Daoyi.

"Continue to study and improve your control over Origin Power. The higher your control over Origin Power, the easier it will be to control your abilities when you use them."

Shen Heng nodded thoughtfully.

"But I've already completed the balloon training. How do I further improve my control over Origin Power?"

Li Daoyi raised his hand and gestured towards the distance.

A branch from a tree snapped off quickly and flew into his hand.

The leaves swayed gently on the branches.

Li Daoyi held the broken branch in his left hand and spread his right hand out.

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