Konoha: This choice is great

Hatake Yoruichi and Yuhi Kurenai stepped into the tent.

As soon as he stepped into the tent, several burning eyes focused on Hatake Yoruichi's face.

Uchiha Obito, Asuma, and Nohara Rin sat in their seats expectantly, waiting for Yoruichi to come in.

"Yorichi, you are finally here."

"Why are you walking so slowly!"

Uchiha Obito and Asuma were waiting anxiously, and they seemed to see light when they saw Yoruichi coming.

"I'm thinking of something good to say to you."

"Since I'm here to teach you, I must think carefully about the content of the lesson."

Yoichi Hatake walked towards the blackboard with a serious face, thinking about what to say. Kurenai Yuhi sat behind and prepared to listen to the lecture.

The three of them, Uchiha Obito, all fell silent and did not disturb the teacher.

At this moment, a person walked in outside.

The visitor was Hatake Kakashi, wearing a mask and putting his hands in his pockets, and walked in without saying hello to Yoruichi.

Uchiha Obito and others looked at Kakashi curiously, their eyes following Kakashi's steps until Kakashi found a seat and sat down.

Asma laughed and joked:

"Kakashi, come and listen to Yoruichi's class too."

Uchiha Obito also became more energetic and said:

"Kakashi, it's normal to come to Yoruichi's class. You don't have to sit so far."

Kakashi deliberately chose a seat slightly away from Obito, but now Obito said it.

He glanced at Obito and said with a white eye:

"I'm not here for class, I'm here to see if Yoruichi made any mistakes, so I can correct him."

"Hey, cut~"

Everyone jeered, but Kakashi was stubborn.

Hatake Yoruichi stood in front of the conference room, smiled and pressed his hands:

"Okay, be quiet, let's start class."

"Since you want to learn, brother, as a younger brother, I will teach you some knowledge."

Kakashi Hatake didn't speak harshly anymore, but pretended to be calm and sat in his seat.

dong dong!

Yoruichi knocked on the blackboard, diverting everyone's attention so that their eyes were focused on the blackboard.

"Being a ninja is nothing more than ninjutsu, taijutsu, genjutsu, plus a medical ninjutsu."

"To improve your strength, you must master higher-level ninjutsu."

"Then we have to mention chakra control ability. This ability is the most fundamental existence."

Uchiha Obito said carelessly:

"Yoruichi, we have learned all this from Minato-sensei. We are treading on tree and water."

Hatake Yoichi shook his head and said:

"No, not enough, that's just the basics."

"If you can further improve this ability, you will find that it becomes easier to learn stronger ninjutsu, and the ninjutsu you have mastered before becomes stronger."

"Because chakra control ability is the foundation. If the foundation is good, you will find that the benefits are very great."

The eyes of the two girls, Nohara Rin and Yuhi Kurenai, became serious. Girls are the most diligent in studying this kind of thing. As soon as Yoru said these things, they got into the mood.

This is the teaching Yoichi Hatake planned to give them, chakra control ability!

Hatake Yoruichi himself didn't master many ninjutsu and couldn't teach them.

But the chakra control ability is different. He is Tsunade's great disciple. Tsunade taught him everything without reservation. If Hatake Yoichi spends time practicing, he can also master the strange power and Yin seal. But he never found the time.

All of Tsunade's abilities are based on her powerful chakra control ability. It can be said that she is the person with the most experience in chakra control in the ninja world.

Hatake Yoruichi has always felt that the world has ignored the practice of chakra control, and it is far from enough to just step on trees and water.

If one can master chakra like one's own body, then that person's strength and talent will be greatly enhanced.

Accurate control of the amount of chakra is very important. Releasing ninjutsu during combat can not only increase the scale of the ninjutsu, but also save a lot of chakra.

"You must think that you just need to learn to tread water and trees, but you have never thought about continuing to improve."

"Have you ever thought about what your strength will become if you continue to practice?"

"Ninjas don't just need to learn more and more powerful ninjutsu, but they must also pay attention to their own basics."

Hatake Yoruichi's words made everyone fall into deep thought.

Yes, if chakra control ability becomes stronger, isn't it more meaningful than learning more ninjutsu?

"Yorichi, please teach us how to practice!"

Uchiha Obito was excited just by hearing what Yoruichi said, and he wanted to learn it on the spot.

"Yes, what you said makes sense. We have never thought about this problem before. Please teach us." Asma echoed from the side.

The two of them are the most anxious, because they wanted to increase their strength from the beginning.

Hatake Ye nodded and said:

"Okay, you wait here, I will get you experimental materials."

"Experimental materials?" Obito was a little confused.

Hatake Yoruichi glanced sideways at Obito and said:

“If you want to make progress, theory alone is not enough.”

"I'm going to get some materials so that everyone can learn and make progress."

Uchiha Obito and others nodded in agreement, and whatever Teacher Yoruichi said would be whatever he said.

The most important thing is to learn something, and they listen to whatever Yoruichi says.

Just when Yoruichi was about to step out of the conference room, he suddenly smiled back and said to Kakashi:

"Brother, don't leave. I will teach you something else later."

"Go quickly, I want to see what you can teach me."

Hatake Kakashi smiled. Sure enough, his intention to leave was noticed by Yoruichi. He was worthy of being a brother.

......

Hatake Yoruichi left the conference room and came to Orochimaru's tent.

He walked right in without knocking.

The tent was actually empty. Only Orochimaru's clothes were there, and the empty tent felt a little lonely.

But Hatake Yoruichi continued to walk in regardless of the fact that there was no one in the tent, not knowing what he was going to do.

I saw him coming to Orochimaru's bedside and pressing a wooden block.

As soon as the wooden block was pressed down, a large hole appeared in the empty ground. From the entrance of the hole, there was a stone staircase that led directly to the ground.

Hatake Yoichi was not surprised at all and just walked in. After he entered, the hole gradually closed and the ground returned to normal.

It turns out to be Orochimaru's laboratory!

Although Orochimaru left Konoha and came to the battlefield, he did not stop scientific research and built a small laboratory under his tent.

Although he is the commander, all matters are left to Namikaze Minato and Nara Shikaku to handle. He does not need to spend time and energy on the battlefield at all. He can just be a commander on the surface. If he has nothing to do, he can go outside to find some. Yun Nin's corpses, he brought back many corpses last time.

Before Hatake Yoichi came closer, Orochimaru said:

"Yorichi-kun, why do you suddenly come to see me when you are free?"

"You're usually not interested in these at all."

Orochimaru didn't even need to raise his head to know that it was Hatake Yoruichi, not only because he felt Yoichi's aura, but also because only Hatake Yoichi knew about the existence of this laboratory.

"Let me take a look at your latest research."

Hatake Yoichi walked to Orochimaru with a smile and looked at the movements in his hands.

Ai's arm was preserved lifelike, as if it had just been chopped off, and was placed on the experimental table in front of Orochimaru.

"How about it, does Ai's arm have any research value?"

"Have!"

Hatake Yoruichi looked at Orochimaru in surprise. He originally asked casually and didn't expect to get an answer. After all, he only got this arm yesterday. He didn't expect Orochimaru to research something right now.

Orochimaru was satisfied with Yoruichi's surprise and took out a report from the side.

"Look, this is my latest research report."

Hatake Yoruichi reached out and took the report, reading the contents carefully.

As Ye watched, Orochimaru said:

"Although Ai's cells are not as powerful as the first-generation cells, they have different research value."

"Due to their training in the thunder attribute chakra model, their cells have very high activation and can over-stimulate great potential."

"Although there are many differences from the first generation of cells, I think I can combine their advantages and carry out genetic modification with the information you gave me!"

Hearing the words genetic modification, Hatake Yoruichi became interested and kept looking at the information in his hand.

"Do you want to modify and optimize your own genes?"

"Yes, Danzo and I were always obsessed with implanting the first-generation cells into our bodies, but after your guidance, Yoruichi-kun, I gave up this idea. The most precious thing for a ninja is his own body, and we should optimize it. Rather than giving up.”

These words entered Yoruichi's heart. Orochimaru was right, optimizing the body was the right way.

"So how far along are you now?"

“Ideas presented.”

"...It means there is nothing yet, right?"

"That's understandable."

Hatake Yoichi threw the information into Orochimaru's arms and turned over the white smoke.

"Nothing is as enthusiastic as you say."

Orochimaru took the information in his hand and said with a smile:

"It's only been a few days since I had an idea and it started."

"That's right, you should work hard."

Orochimaru smiled and nodded to acknowledge receipt.

I have to say that Yoichi Hatake is the only one who dares to talk to Orochimaru like this.

No longer paying attention to the progress of Orochimaru's experiment, Yoruichi turned to ask:

"Are there any rats in your lab?"

"Rat? Yoruichi-kun, why do you want a mouse?"

"Can't I do experiments?"

Orochimaru smiled sadly and said: "It is best to conduct experiments on human subjects. The body structure of mice is not comparable to that of humans."

Hearing this, Yoruichi couldn't help but touch his goosebumps arm. Orochimaru looked really scary.

"No need, just mice will do. My experiment is just a small experiment, not as good as yours."

Seeing Yoruichi doing this, Orochimaru stopped trying to dissuade him and turned around to a container.

"Just in time, I still have hundreds of rats here, take them all."

"Why do you want so many rats?"

"It was originally intended to be eaten by Wan She, but now he is dead."

Orochimaru looked normal and expressed no concern about the death of his psychic beast.

Hatake Yoruichi was overjoyed, took the container, and thanked Orochimaru:

"As expected, Orochimaru-sama is a pervert. He actually had so many rats, and I took them all away."

After saying that, Hatake Yoruichi took the container and disappeared.

He had to use the Flying Thunder God Technique to return to his signature first, otherwise it would be bad if someone saw him taking out so many rats from Orochimaru's tent.

Orochimaru watched Hatake Yoruichi disappear and couldn't help but smile and shake his head.

Yoruichi's perverted sound just now didn't anger him, but he found it interesting. It's been a long time since anyone dared to scold him to his face.

Orochimaru's love for Hatake Yoruichi has also reached its peak. The recent interactions with him have made him appreciate Hatake Yoruichi more and more, this powerful and interesting young man.

He finally understood why his two friends liked Yoruichi so much.

The three "Sannin" were all impressed by Hatake Yoichi.

.....

Hatake Yoruichi carried the large container back to the conference room.

Uchiha Obito saw Hatake Yoruichi coming back and shouted from inside:

"Yorichi, you're finally back!"

"What's in your box?"

Obito was talking, but he was not idle. He stepped forward to help Yoruichi, and Asuma also came over to help.

Just when Obito asked what was here, a chirping sound suddenly came from the box.

"Chichi, chichi, chichi!"

Hatake Yoichi patted the box and said:

"This is the experimental material I found for you, hundreds of mice."

"Your task is to inject chakra into it but keep him alive."

"The more chakra you input and the longer the rat lives, the higher the requirement for your chakra control ability."

"I will be there to guide you. If there is anything that needs improvement, I will tell you in time."

Uchiha Obito and others nodded, finally things were done, and they couldn't wait.

They don't think there's anything cruel about it. As ninjas, killing a few rats can increase their strength, which is what they dream of.

"Okay, let's get started."

Following Hatake Ye's orders, everyone began to move.

Uchiha Obito was the most impatient, holding a mouse in his hand and delivering chakra to it.

But the next moment, the mouse struggled painfully and immediately lost its life.

Uchiha Obito looked at the dead mouse in his hand and couldn't help but be stunned. How long has it been since he died?

"Too much chakra input, refine it!" Ye said the reason without even raising an eyelid.

In this way, everyone started training, just like Tsunade taught him, and now he taught them the same way.

"Hey, I asked you to refine it, not so that you won't lose chakra. Are you giving a massage to a mouse?"

"Asuma, think about how you can make your chakra finer."

“…”

Just like that, in the conference room, several young people were doing exercises with hundreds of mice. Even Kakashi was not idle and joined in.

Hatake Yoichi was guiding from the side, passing on all the experience gained from Tsunade.

First lay a solid foundation for them, and then design a cultivation path suitable for them.