I haven't seen fireworks.

Kamiya Keiyun is thinking about a question, how to poison...

These four ninjas were very cautious. They only ate cooked meat and drank boiled water. They did not sleep together when they slept. Instead, four of them slept and one kept vigil.

They don't even divide the room, regardless of men and women, they all sleep in the same room, and they don't take off their clothes when they sleep, and they all sleep with their clothes on.

"So cautious?" Shen Gu Jingyun squatted on the tree until midnight, a little speechless.

In fact, he can put the poison directly into the water. Paraquat will only decompose at a high temperature of 300C, so boiling it is useless.

But the girl is also drinking this water, and if she falls into the water, she will also be poisoned to death.

Although she has a strong physique, it is uncertain whether she can defeat Paraquat.

She is locked in the room now. I want to discuss lip-syncing with her, but I can't...

"Wait, can't you do it?" Kamiya Jingyun thought for a while, and there was a move in the martial arts skills that fit the current situation.

It's called voice transmission.

The principle is to use internal force to bundle the sound into a line and then transmit it out.

Sound is a wave, transmitted through vibrations.

What vibrates?

It's air!

And Kamiya Keiyun can now control the air!

"It's up to you, Shengu Yunxiao!"

The current Uzumaki Kagura is not dangerous.

Because of being homeless and being bitten on the arm to suck blood all the time, she herself is thin and weak.

The chuunin wanted to marry her and have children, so naturally he had to take care of her body first, so although he treated her indifferently every day, he never treated her poorly.

Don't worry about her safety, Shengu Jingyun simply stopped monitoring in the middle of the night, ran a little farther, dug a laboratory underneath, and then summoned Shengu Yunxiao to study sound transmission.

"I have experience with this technique. It has almost the same idea as the technique of cloud mirror. The technique of cloud mirror is to refract light, and the technique of sound transmission is to refract sound waves!" Shengu Yunxiao patted his chest: "This technique is not difficult, you first Go to bed, I will give it to you tomorrow!"

"Is it so powerful?" Shen Gu Jingyun was a little surprised, but since Shen Gu Yunxiao was created by himself, he had the same thoughts and talents as himself.

I'm so awesome myself!

That's fine.

He went to sleep, while Kamiya Yunxiao was sitting in the underground laboratory.

However, I soon discovered that there was no wind underground, so it was very difficult to study ninjutsu.

He simply flew out of the laboratory and crouched on the top of a tree.

The wind in the mountains was strong and the trees swayed violently, but he used a little trick of chakra to firmly bind his body to the treetops, and began to study with the ubiquitous wind.

The transmission of sound requires a medium, and the medium used for sound transmission is naturally air.

Then this technique is simple, you only need to pinch an air line to create a vacuum around it, and the sound can only travel on this line, because there is a vacuum next to it.

Can you do it?

Of course, after all, Kamiya Yunxiao knows that among the ninjutsu that Fuki Shimura Ken is good at is Wind Release and Vacuum Wave.

He didn't know that other than the name and the vacuum, the rest of this technique has nothing to do with it. He just thought, since someone who has worked out it before, I am not only rewarded by God, but also rich in theoretical knowledge. Reason can't do it!

Shengu Yunxiao tried it, what he thought was to condense the surrounding air in the middle, so wouldn't a vacuum be born?

Naturally, it failed at first, but an air line with a higher density than the air next to it was created.

This line of air is less than 0.5mm thick, invisible to the naked eye, and has no offensive power. It only serves the purpose of transmitting sound.

And it works great.

As the air density increases, the speed of sound will also increase. The air line created by Kamiya Keiyun is formed by drawing the air next to it. As the air density goes back and forth, the density difference between the air line and the air next to it reaches more than 40 times.

This results in the sound propagation on this line being extremely fidelity, but the propagation next to the line has no idea where it is scattered.

This air line can still be eavesdropped within 3 meters, but once the distance exceeds 3 meters, the sound outside the line begins to be distorted. At 5 meters away, it becomes a whisper. At 10 meters away, the sound reduces to To an extent that cannot be captured, it is integrated with the sounds of nature outside.

Therefore, Kamiya Yunxiao did not create an air line that could completely converge the sound, but it created a relatively convergent sound, which is practical for transmitting sound into the secret at a distance of more than 10 meters.

At present, the farthest distance is 17 meters. If it is farther, it will be due to insufficient chakra control and unable to control the air.

"I seem to have discovered a secret?" Shengu Yunxiao studied and studied, and suddenly discovered a problem.

Why does chakra dissipate when it is released outside the body, but it can extend as far as 17 meters when used in sound transmission?

"Chakra seems to be divided into two states: conscious and unconscious. Chakra that is conscious and purposeful is easier to retain. Just like the chakra used in the Substitution Technique, it seems to have some mission. The chakra that makes up the shadow clone is more likely to be retained. It can stay in the outside world almost permanently, but chakra without purpose can easily escape..."

Why is this?

How does Chakra know if he has fulfilled his mission?

Or is it that the spiritual energy that makes up Chakra is not simply spiritual energy, but integrated into one's own thoughts and will?

Or, the effectiveness of chakra is actually not only the effect of physical energy and mental energy, but also mixed with a third force.

Like, the power of thought?

Kamiya Yunxiao recalled the feeling when he released his ninjutsu.

What is a ninjutsu made of?

The first, chakra, provides energy.

Second, matter, that is, things to be manipulated, such as soil and air.

And thirdly, your own imagination.

It is my own imagination that tells Chakra what kind of effect I want.

Imagination, in modern society, is an elusive thing and cannot be quantified.

But in the ninja world, this is something that cannot be observed temporarily, but it actually exists!

"This is a big harvest!" Shen Gu Yunxiao was a little excited.

This discovery is not very important, because he will still have to use chakra, ninjutsu, etc. in the future.

But this discovery is also very important, because he knows the soul of ninjutsu!

And this discovery will greatly shorten the time for him to create ninjutsu, and the ninjutsu he uses can also be more effective by pouring more expectations into it!

How to pour more expectations?

Shen Gu Yunxiao thought for a while, only to focus!

Will releasing a ninjutsu with a relaxed mood and releasing a ninjutsu with full concentration have the same effect?

Maybe when this technique is so proficient that you can use it with your eyes closed, there really is no difference.

But in the beginner stage, the improvement brought by concentration will definitely be huge!

Shengu Yunxiao thought again that the concept of concentration is seen in many methods, practicing swords and boxing requires scholars to concentrate.

As the saying goes, sincerity leads to spirit!

"Tao Te Ching" also said: Concentrating on Qi and making it soft, can it be like a baby?

"Sure enough, there are thousands of books passed down in the family, and there is only a simple word of sincerity, but there is such a big truth behind it!" Shen Gu Yunxiao breathed a sigh of relief, and his whole state gradually stabilized.

Closing his eyes, ignoring the strong gust of wind around him, Shen Gu Yunxiao concentrated on the development of the sound transmission.

The first law of chakra cognition adds: Chakra is spiritual, and sincerity is spiritual. Chakra meridians are not an aid to the release of ninjutsu, but an obstacle!

PS: Sincerity leads to spirituality: if you are dedicated and respectful, you will be able to achieve your ideal state. This is a popular philosophy and has nothing to do with belief.