In the capsule house at this time, Xia Yan also happened to get up and stretch a big waist, feeling extremely refreshed.

Because this was the first time in half a year that he didn't have to receive memories from the three little ones when he slept.

Xia Yan almost forgot that when the quality of sleep is good, people will not remember the dreams they have when they wake up.

However, Xia Yan could only smile helplessly.

After all, it was impossible for him to give up the great help that Sanxiao had brought him for the quality of his sleep.

However, it may also be a good topic to enhance the endurance of the brain or the strength of the soul through various means.

Natsuhiko thought about this as he quickly finished washing.

Seeing that Kakashi was not in the house, and hearing a faint sound outside, he opened the door and walked out.

"Fire Escape: Hao Fireball Technique!"

As soon as he went out, Natsuhiko saw Kakashi's hands not far away quickly seal, and then he took a deep breath and his chest bulged, and then he suddenly spat out a huge fireball and flew forward with a roaring sound.

Under Xia Yan's gaze with a slight raised eyebrows, the fireball hit a thick tree, and then actually pierced through without causing any damage.

Bang bang bang.

Seeing that Kakashi stopped moving, Natsuhiko clapped his hands and walked over.

"Kakashi, I didn't expect you to practice the projection technique to this level so quickly, it's no different from the fireball projection technique with earth."

Xia Yan smiled, while complaining in his heart.

It seems that even if he didn't write the wheel eye, he still couldn't stop Kakashi's heart from copying other people's ninjutsu.

Is this the strength of the Ancestor Copy Ninja?

And although Kakashi was praised by Natsuhiko-sensei, his reaction was still mediocre, as if he was still not satisfied with what he had just done.

"Teacher, you have won the prize, in fact, the projection and sound of the fireball projection technique just now are not completely synchronized."

Kakashi shook his head slightly.

Just like people who can cook, they are better able to taste the quality of food.

After learning the projection technique, Kakashi realized how flawed Obito's original fireball projection technique was, and how inexperienced he was in the first place.

Because the size of the fireball, the temperature, and the surrounding environment will affect the sound of the fireball.

Therefore, with the obviously incongruous roar of the fireball with earth, even if it doesn't matter the temperature, just listening to the sound, an experienced ninja can see through the truth of the fireball.

So being praised by Natsuhiko-sensei is about the same level as Obito, which is not something to be happy about at all for Kakashi, who is striving for excellence.

"It's so strict."

Xia Yan smiled and said, "But there is no way, after all, the projection and sound of the projection technique are actually produced separately, and they are two different uses of chakra." ”

"The projection is formed by the transformation of the doppelganger, and the sound is the release of the chakra into sound waves. It takes a long time to get them perfectly synchronized without flaws. ”

Speaking of the idea of producing sound by this projection technique, I still have to thank Orochimaru.

Because in the original work, there are many guys who fight with their voices.

One of the names, Natsuhiko, doesn't remember anymore, but he knows that he can use the device in his arm to convert chakra into high-pressure air currents and ultrasonic waves to attack the enemy.

Xia Yan also borrowed this line of thinking, so that projection evolved from the silent film era to the sound film era.

But because of this, just like the videos of Xia Yan's previous life, sound and image are not actually a whole, so there are often various situations where the sound and picture are out of sync.

Xia Yan relied on years of experience and the assistance of his brain to easily achieve no flaws.

But for his students, this may be the biggest problem in cultivating projection.

And Kakashi, as a genius, naturally quickly understood the key, so he asked Natsuhiko for advice on the issue of voice.

What amazed Natsuhiko even more was that Kakashi was even able to draw inferences, and after he explained a little, he realized that there was also a possibility that this sound-making chakra technique could be used in battle.

Natsuhiko also wanted to see how Kakashi, who would invent Chidori sooner or later, could go, so he also briefly explained the use of sound by those otoshi as inspiration.

Perhaps it won't be long before a ninja sword version of the slashing wave will be born from Kakashi's hands......

After finishing the teaching of Chakra's transformed voice, Xia Yan thought of another question and said:

"Anyway, I asked Kakashi to design your own natal projection technique, have you done it?"

Kakashi shook his head slightly.

"Teacher, not yet."

"Probably something I don't particularly want to achieve with projection."

"But I think it's actually good to imitate other people's projection techniques."

Copy Ninja is back here!

Xia Yan complained in his heart, and at the same time was a little speechless in his heart.

After all, this kind of idea of picking everyone's wool was originally one of the purposes of Xia Yan's hard work to teach the projection technique to everyone.

Why did Kakashi do nothing, and he could pick up everyone's wool like himself?

Could it be that this is the wordless tacit understanding of two generations of copy ninjas?

Xia Yan couldn't help but gasp, feeling that this son was so terrifying, and he must not be allowed to continue like this.

At a young age, don't always think about copying or something, let me honestly develop a little new gadget so that I have room for reference.

Since Kakashi didn't find the direction of the natal projection, then I'll decide on one for him.

After thinking about it in his heart, Xia Yan said to Kakashi:

"Let you design your own projection technique, in fact, the main thing is to let you initially understand your own ninja."

"Because projection is a very low-cost way to bring people's ideas to life."

"Obito's fake fireballs, Asma's handsomeness, Red's illusions, Rin's cute pets, and Ebisu's mosaics are all part of the dreams they want to achieve."

"And you who haven't found your own natal projection technique, it actually proves that you are still confused in your heart."

Seeing that Kakashi was hit by his own words, his eyes widened, Xia Yan smiled slightly, and changed the conversation:

"Actually, it doesn't matter, after all, ninja is something worth looking for all your life."

"But for the sake of the follow-up course and research test, Kakashi, you'd better choose a direction to study first."

"I happen to have an interesting projection usage that works well for you, would you like to try it?"

Kakashi, who was still stunned by the teacher's words just now, finally came back to his senses, hesitated for a moment and said:

"Teacher, can you show me how to use what you said?"

"Of course there is no problem."

Xia Yan smiled, and then looked at the white fang short knife behind Kakashi's back, and said:

"But maybe with your knife, the effect is better."

Kakashi didn't have a problem with this, and happily handed the short knife to Natsuhiko.

Then the two pulled away slightly.

I saw Xia Yan's right index finger against the back of the knife, as if he was carrying a scalpel.

He said in a more serious tone than usual:

"Kakashi, remember not to move your body when you see me make a move, because I don't have full control over this move, so if you move, you will die."

Kakashi swallowed a little nervously when he saw that the teacher was so cautious.

Although he is very similar to asking the teacher, why do you have to target him?

There are so many trees around......

Probably because you can't grasp the essentials of this trick without experiencing it yourself.

Thinking so, Kakashi became more and more expectant of the teacher's move, and asked:

"Then teacher, the name of this trick is ......"

Xia Yan tilted his head slightly and said:

"Hmm...... In fact, I didn't give this trick a special name, but if I really want to say it, the name of this trick is probably ...... Hydra flash. ”

Thank you for the 100 tip from Liu_haha book friends

(End of chapter)