People are in Konoha, scientific achievements are followed by blood

Tsunade, who is tough by nature but hates war, was entangled in her heart by Orochimaru's words. At the same time, she thought of her brother who died a year ago, and she suddenly lost her mood for teaching.

Yayoi had no intention of disturbing her. In his impression, a woman trapped in inexplicable entanglements was a very troublesome creature.

His choice was to ask Orochimaru, a master of ninjutsu and human body research, and Tsunade did not stop him.

Orochimaru readily accepted Yayoi's advice.

In terms of human medical knowledge, Orochimaru's research is very in-depth, no less than that of Tsunade, and he is naturally more than enough to answer Yayoi's questions.

However, when he was teaching Yayoi, he would intentionally or unintentionally bring in some "private goods" and convey his own ideas in a circumstantial way, which was the evil "science" in Naruto.

What surprised Uncle Snake was that Yayoi accepted some of his ideas very quickly, and was even able to quickly draw inferences and propose some research directions that Orochimaru had not considered.

The two of them slowly changed from simple teaching to discussion with a bit of communication. Of course, Orochimaru was still the absolute leader.

Unlike the other two, Orochimaru no longer treats Yayoi as a child, which can be seen from his title.

Among the three, Jiraiya completely regarded Yayoi as someone who needed to be taken care of, and he always called him 'little Yayoi'.

Tsunade regarded him as a slightly precocious brat, and called him 'boy' and 'Yayyo'.

Orochimaru is different. He now calls Yayoi "Yayyo-kun" and seems to regard him as an adult.

During the exchange with Orochimaru, Yayoi's knowledge of ninjutsu and chakra improved rapidly.

Looking at her own memories, Yayoi gained a new understanding of medical ninjutsu.

What differs from Tsunade and others is that in Yayoi's eyes, the essence of palm senjutsu is not so much the "change in form" and "change in nature" of chakra, but rather the use of another secret of chakra. The characteristic "erosion".

This corrosive property of chakra is shown in many places in the anime.

At the level of ordinary quality chakra, this corrosive ability is more manifested as "synchronization", "suppression" or "assimilation".

When the quality of chakra breaks through a limit, it will show further "erosion", "transformation" and even "heredity", affecting the spirit and body of the ninja. The blood inheritance limit is the perfect embodiment of this characteristic.

The four steps of Palm Immortal Technique simulate this process of chakra erosion. It is an application of vitality and body energy. After sublimating to a certain level, it is the so-called 'Yang Escape Chakra'.

Among the four steps of "release", "synchronization", "invasion" and "control", "release" and "synchronization" are carried out outside the body, while "invasion" and "control" are carried out inside the body.

In anime, you often see medical ninjas holding their hands toward the injured, with their hands glowing green.

In fact, this is the process of "release" and "synchronization" of chakra.

Only after the "synchronization" is completed, can chakra successfully "invade" the injured body and use medical chakra to "control" the injured body tissue and chakra meridians to achieve hemostasis, detoxification, and accelerated self-healing. , physical transformation and other effects.

Therefore, when we often see a medical ninja working with green light, it looks like he has put a lot of effort into it.In fact, only the medical ninjas themselves know how much of it is just fishing and how much of it is effective.

Compared with ordinary medical ninjas, Yayoi's advantage lies in his mind-eye perception ability.

With the help of the perception of the mind's eye, Yayoi can easily analyze the nature of the injured person's chakra, and then quickly complete the "synchronization" step after "releasing" the chakra, allowing her own chakra to "invade" the injured person's body tissue and In the meridian system, the purpose of healing or destruction is carried out.

Soon, Tsunade began to allow Yayoi to also participate in rescuing the wounded in Konoha. In order to prevent Yayoi from being eager for quick success, she specifically requested that the chakra of the palm senjutsu should not be contacted with the chakra meridian system of the injured.

In order to bring Yayoi's ideas closer to his own, when teaching Yayoi, Orochimaru would often instill some of his own unethical ideas.

He deliberately guided Yayoi to develop the destructive ability of Palm Senjutsu, and also captured several unlucky enemy ninjas alive behind Tsunade and Jiraiya's backs to serve as subjects for Yayoi Palm Senjutsu's destructive experiments.

Yayoi saw Orochimaru's purpose in his eyes, but didn't care too much.

Since the death of her mother Uzumaki Shina, Yayoi's life has begun to work hard towards one route: survive, become a blood successor, resurrect her parents, and rebuild her home.

For this reason, his bottom line is lower than Orochimaru imagined.

After completing the step of invading the human body with the help of several experimental subjects, Yayoi discovered another secret about his mind's eye ability.

Originally, from the perspective of the mind's eye, creatures without chakra were lumps of vitality, while ninjas with chakra were humanoid outlines.

The perception of the mind's eye cannot know the content inside the outline. To the mind's eye, the interior of the human body is a chaotic whole.

However, after his chakra further invaded the ninja's chakra meridian system, Yayoi discovered that the perspective of the mind's eye also expanded to the inside of the human body as the chakra invaded, allowing him to see the inside of the human body as clearly as the Byakugan. Structure and even cell metabolism!

This means that the last step of Palm Senjutsu, "Control", is not much more difficult for Yayoi than "Synchrony".

Yayoi thought for a moment, then revealed this discovery, and confessed the new ability of his mind to Tsunade and the others.

The three of them, Tsunade, are all very good and experienced ninjas, and may be able to give him some advice on the application of his mind's eye.

Hearing this, Tsunade was a little surprised and looked thoughtful: He had obviously banned Yayoi from using Palm Senjutsu to invade the chakra meridian system of the injured, so how did he discover this characteristic?Could it be...

"Orochimaru, did you let Yayoi be a prisoner..." Thinking of this, Tsunade couldn't help but stare at Orochimaru with burning eyes, like an angry lioness.

Perhaps it was Yayoi's age that reminded her of her younger brother.

Tsunade has always wanted to keep Yayoi as far away from the frontal battlefield as possible, and the knowledge she taught Yayoi was mainly medical knowledge and medical ninjutsu.

That's why she was so dissatisfied when Orochimaru guided Yayoi to develop Palm Senjutsu in a destructive direction.

"From today on, you are not allowed to be alone with Yayoi!" Tsunade said angrily to Orochimaru with a sullen face.

"It's useless, Tsunade." Orochimaru didn't take it seriously: "Just like you can't stop the rope tree from participating in the war, the things Yayoi is carrying will make him come to me on his own initiative."

"You guy!" Tsunade clenched her fists.

"Well...well..." Seeing the two of them looking like they were about to fight, Jiraiya quickly acted as a peacemaker, "Both of you, calm down!"

As a reckless man who didn't even know how to perform illusions, Jiraiya didn't know about Palm Senjutsu, so he didn't know about Orochimaru's guidance of Yayoi involving human experiments.

All he knew was that the new ability of the mind's eye was very good, and it was very suitable for combining with medical ninjutsu.

So, he patted Yayoi's shoulder very happily and said happily: "Isn't this a good thing? This shows that little Yayoi is very suitable to become a medical ninja!"