Satoru's Contact Evolution was created to save this part of the time, and it allows for selective evolution.
Yin Release creates form from nothing, extending nerves to infiltrate the object (living being) that needs to be invaded, using the Mind Reading Technique, as well as nature transformation, to absorb information from the object (living being) into the nerves.
Then, using the second-generation Heart Steel, all information is filtered out and then analysed with knowledge accumulated over many years.
After analysis and processing, it is etched into the nerves.
The body will then evolve in a better direction.
And this evolutionary process naturally requires his knowledge of the Genjutsu of Phantoms that he has researched.
It performs information fraud absorption on the body, causing the body to accelerate its changes, rather than requiring multiple generations of inheritance like kekei genkai development.
The Kumogakure Ninja corpse he currently has is a Ninja with a Bloodline Limit.
Satoru intends to absorb information from his genes that strengthens the body's vitality.
Chakra is the product of the combination of physical energy and spiritual energy, so Satoru's goal is very clear: the genes related to vitality, which represent physical energy in the human body.
Why not pursue the path of kekei genkai? Naturally, all Ninjutsu have limitations.
His current method also has limitations.
If the human body evolves too quickly, it can lead to collapse; it requires time to absorb the evolution.
And the more information there is, the more demanding it is on the body's tolerance, so his goal is Chakra, which is vitality.
Therefore, he only needs to focus on this aspect.
Even if he encounters other test subjects, they can be integrated, because the information regarding the human body's vitality is actually quite similar.
This way, it won't put too much burden on the human body.
"The time of several generations, completed in just a few years, or even a little over ten years,
is acceptable."
Satoru found this outcome completely acceptable.
From today onwards, his vitality will continuously increase.
As vitality increases, the body's tolerance will increase, and the human body's evolutionary speed will also increase.
As long as he finds objects from which to absorb information, his body and Chakra can continuously grow stronger.
And as for the objects from which to absorb information, there are only so many.
Konoha just happens to have one, and he occasionally comes to his house to play.
Naruto.
Collecting Naruto's information would be too simple.
There are others too.
The most obvious sign of his technique is only the tree-branch-like patterns on the recipient after the technique is performed, as long as it's cast in a place where no one is around.
The individuals themselves won't even notice anything.
If there's an opportunity in the future, he can also collect information from Kisame, Samehada, Tailed Beast, Hashirama, Ten-Tails, and Ōtsutsuki.
One day, he will never run out of Chakra.
Although he never fights when he's low on Chakra.
This was the most difficult technique he had ever researched, based on the memories and knowledge of countless enemies, and after more than a decade of diligent study and knowledge accumulation, he barely completed the first stage.
This technique is an integration of all his knowledge and Ninjutsu, not simply the segmented use of each technique.
The difficulty is too high.
Grumble~
Suddenly, his stomach started growling.
"..." The cost of evolution is naturally not just the difficulty of information processing; the body's nutrition is also a cost.
He pulled out a special Military Ration Pill from his pocket to restore his body's nutrients.
He bought this from the Akimichi Clan; each one costs tens of thousands of ryo.
Oh my, arms dealing indeed makes a fortune!
He was incredibly envious; based on his analysis of the Military Ration Pill, he didn't recognise many of the ingredients.
This is the role of knowledge in evolution; without the corresponding knowledge, he wouldn't be able to evolve either.
Just messing around would only cause his body to collapse.
That's why he studies every day.
But he hasn't yet come into contact with the Akimichi Clan's secret medicine, so he doesn't recognise some of the ingredients.
He vaguely recognised some of them as medicinal herbs and deer antlers produced by the Nara Clan.
Expensive, too expensive.
But there's no choice; his main direction of study right now is still human tissue.
He doesn't have much time to research external medicines.
He can only grit his teeth and keep buying.
And this is with a good relationship with the Ino–Shika–Chō; otherwise, it would be even more expensive.
As for the purpose of Satoru customising special Military Ration Pills, the Akimichi Clan didn't say anything; they just sold them if he bought them.
Now everyone in Konoha knows that Satoru is one of the most trustworthy people in Konoha.
Satoru was grateful for this, after all, Military Ration Pills are important military secret medicines... This day.
"Husband, why do I feel like your body has been getting better and better recently, and you're eating more and more?"
Ayame nestled in Satoru's arms and said.
She looked at Satoru's skin and his expression.
She noticed that both had changed a lot.
Although he was handsome before, as a Ninja who was often out on missions, his body was inevitably fatigued and not as good as it is now.
Looking at his skin, it was smooth to the touch.
His eyes also looked increasingly spirited.
And recently, he had also become more and more vigorous, almost making her unable to keep up.
This made her incredibly envious.
Satoru hugged her and smiled, "This is my latest body conditioning technique, just like the one I usually use to condition you, but the effect is better. Once I'm sure there are no problems, I'll condition you."
If there are benefits, family comes first.
"Really? You're so good, husband, I love you."
"I love you."
"Ah, no."
....
...Humph humph ha-he~
Bang bang bang~
"A thousand left kicks, five hundred push-ups..."
Lee delivered a barrage of attacks against the wooden stake, his expression as serious as ever.
He would definitely surpass Neji in Taijutsu; he always believed in this.
A genius, he was also a hardworking genius.
And in the area next to him, Hyuga Neji and Tenten were also practising.
They had now officially formed a team and were officially Genin.
However, they usually performed some low-level missions; now, after completing their missions, they were undergoing Teacher Kai's Taijutsu training.
Hyuga Neji looked at the hardworking Lee; even if he didn't agree with his ideas, he admired his effort.
"I never expected, Satoru, that words like 'those who believe in miracles are greater than miracles themselves' would come from your mouth. You truly impress me."
Might Guy stood on a tree branch, looking at his diligent disciples below, and praised Satoru, who was sitting next to him.
What inspiring words.
Crunch~
Popping a Military Ration Pill into his mouth, Satoru said, "I also never expected that you'd be teaching disciples. That's quite impressive."
"But you invited me here; is there something you need help with?"
Might Guy had invited him today, saying he wanted to show him his beloved disciples and also trouble him with something.
And it was surprising that Lee hadn't been given a bowl cut by Might Guy yet.
"Hehehe, because I'm only good at Taijutsu, and I see you're not busy,
I'd like to ask you to teach them something different, to make them more well-rounded."
Might Guy had always known his own shortcomings in certain areas. He was confident he could train these children well, but if they could be even better, he wouldn't mind.
And Satoru was his friend who was the best at teaching.
Naturally, being as clever as he was, he immediately came to take advantage.
As long as his disciples didn't develop an aesthetic for red clothing, it would be fine.