Naruto's strongest shock

"This is the method of precise control of Chakra."

Not far from the Konoha camp, in a forest, two figures were standing here, one of them was speaking lightly, it was Naito Yu.

And Mitarai Anko was standing beside him, showing a thoughtful expression.

Naito Yu was waiting for Orochimaru's free time to do research, and gave some pointers on Hongdou's practice when he had nothing to do.

Of course, this is not the point, the point is that Yu Naito suddenly felt a little bit of an experiment, and tried it on Hongdou.

Orochimaru in the original book, based on Chonggo's body, researched the curse seal, and used it on many people, and the first person to successfully bear the curse seal was Hongdou.

Naito Yu is not interested in the curse seal, what he is interested in is how to use natural energy to transform other people's bodies and enhance their vitality.

Today's Naito Yu, although not saying that he is immortal, but his lifespan is definitely much longer than that of ordinary ninjas, but Kushina next to Naito Yu, even though he is Nine-Tails Jinchuriki, will still age.

What Yu Naito has to do is to find a way to help Kushina get rid of aging.

Tsunade's Baihao technique is only a way to treat the symptoms but not the root cause. Only by truly transforming from the body can it resist the erosion of time.

Today's Naito Yu may not show signs of aging even in a few hundred years, because Naito Yu's vitality is too strong, and he can draw vitality from the natural energy between heaven and earth at any time.

However, it is very difficult to transmit this kind of vitality to other people, because it is said to be vitality, but it is still natural energy in essence, and natural energy is very difficult to control.

Being able to control natural energy is tantamount to cultivating into a fairy mode. Of course, it is not something that everyone can easily do.

What Naito Yu imagined was to make something similar to the curse seal to receive natural energy.

Naito Yu first taught Hongdou the precise control of Chakra. This girl's comprehension is not bad, and she has comprehended all the previous things in a short period of time, and now she has reached the final stage.

"Thank you Naito Yu-sama for your guidance."

Constantly recalling what Yu Ye said just now in his mind, Hongdou's eyes gradually showed a hint of enlightenment, and then bowed his head to Yu Ye very respectfully.

"you are welcome."

Naito Yu smiled slightly, and said: "I'm making a deal with Orochimaru, since you are his disciple, it's just a matter of giving you some pointers."

Hearing Naito Yu's words, Hongdou felt even more grateful to Naito Yu in her heart. Although Naito Yu didn't care what she said, Hongdou knew that Naito Yu's few simple pointers to her were enough to save her from many detours.

"Okay, you can continue to practice."

Naito Yu nodded at Hongdou, then jumped up to the top of the tree, sat casually on a tree trunk, leaning against the trunk of the big tree.

Red Dou watched Naito Yu jump up the treetop with admiration, and then began to practice.

After Hongdou's control over Chakra had almost reached the limit that she could achieve at her age, Naito Yu didn't hide anything from her, and directly told her that she could help her become stronger, but she needed her cooperation and there was a certain risk.

What surprised Naito Yu a little was that Hongdou was not afraid of danger at all, she agreed directly, and judging by her appearance, she seemed to be very willing to let Naito Yu do the experiment.

Sure enough, Orochimaru chose a good disciple.

With Hongdou being so obedient, Naito Yu took more care of her. In the process of cooperating with her, once she felt some discomfort or pain, Naito Yu would stop immediately.

After doing this a few times, I don't know if it's luck, or the girl like Hongdou really has a special physique. After Naito Yu injected a part of the natural energy into her body and formed a mark, it was actually perfectly absorbed by her!

Because Naito Yu did not make a curse seal, so there was no three-shaped jade like the curse seal of the sky on Hongdou's body, but a faint dot appeared between her eyebrows, a bit like Tsunade's practice. Baihao's technique, the imprint of the diamond-shaped yin seal left between the eyebrows.

The first phase of the attempt was successful, and Hongdou's strength jumped directly from the level of being close to the Chunin to the level of being close to the Jounin, a whole level has been raised.

Whether it is the amount of chakra, or the speed of the body, the strength has been greatly improved.

After Orochimaru found out about this, he was also a little amazed, but he didn't have any idea of ​​stopping it. Instead, he was very interested in what Naito Yu did.

However, he was studying the relationship between soul and chakra, and he didn't have time to study natural energy and body transformation, so the changes in red beans didn't attract much attention from him.

After the first stage was completed, Hongdou regarded the improvement of her own strength as the power Yu Naito bestowed on her, and became more and more admiring Yu Naito, Yu Nai felt a little helpless, this girl seemed to be born without brainwashing.

After several experiments, Naito Yu confirmed that this transformation is not only effective for red beans, but also for everyone else, and the success rate is extremely high. Even if it fails, as the controller, Naito Yu can suppress the natural energy at any time, and there will be no What an accident.

This transformation can slightly increase the activity of human cells. Although it is only a slight increase, Naito Yu estimates that the vitality will be increased by at least 100%. That is to say, if a person has a lifespan of 130 years, after this transformation, he can live to [-] years.

The success of the first stage made Naito Yu more interested, so he continued to ask Hongdou to cooperate with him in the next stage of the experiment, and Hongdou, the girl, readily agreed, without the idea of ​​"danger" in her mind at all, even Whatever Naito Yu asked her to do, she would do it.

Naito Yu couldn't help laughing at this.

Orochimaru's disciples, who were about to become his disciples, were snatched by him... No, it should be said that he abandoned the dark and turned to the bright.

The second stage of transformation was not so easy. There were some bottlenecks, and it failed more than a dozen times in a row. The reason for the failure was that Naito Yu stopped immediately after finding that Red Dou felt unwell, and she didn't even feel any pain.

For this, Hongdou was even more grateful to Naito Yu, and even suggested that she didn't need to stop, even if she was in pain, she could bear it, but Naito Yu smiled and didn't answer her.

Naito Yu's thinking is completely different from Orochimaru's. After Orochimaru made the curse mark, he randomly asked someone to test it, regardless of the pain or death of the test subject, and finally only recorded the results.

Naito Yu's point of view is that if the person undergoing the transformation feels uncomfortable, it proves that the transformation itself is not perfect and needs to be improved.

The second stage of the experiment on Hongdou was finally completed successfully after dozens of failures, but this time, it seemed that it was really because of Hongdou's special constitution.

In the original book, she was the first to successfully bear the seal of the sky, which is special.