Perhaps because he figured it out, after Shiraishi went back, he found that he was in a much better mood.

The motivation to do research has been aroused, and I can stay in the lab all night.

Putting aside the personal aspect, research has also made great progress in the past few days.

Because of the unexpected discovery, the chakra in the body of the mice is now replaced by the medicine processed by natural energy, as the life energy, and more and more mice are surviving.

The surviving mice are larger and more energetic than the average mouse, and most importantly, so far, there have been no cases of sudden deaths.

Judging from the results of instrument detection, this benign growth state can accompany these mice for a lifetime.

They will no longer have sudden death until the end of their natural lifespan.

The processed natural energy can replace the life energy status of the chakra and allow life to carry out normal activities.

- Therefore, it is time to start a new human experiment.

That's right.

Shiraishi's ultimate goal is not to get the guinea pig to change.

The final stage of this experiment is applied to the human body.

In order to help Ayane untie the caged bird, when she leaves Konoha like that, she won't be pinched by the Hyuga clan.

Despite experiments with mice, there is still an important stage that has not been completed.

That is to replace the chakra with the original natural energy.

What now replaces the chakra in the guinea pig's body is the processed natural energy.

But Shiraishi, who has already discovered the core of the problem, has great confidence and can quickly uncover this stage.

The next step is the beginning of a new round of human experimentation.

Unlike experiments that fuse natural energy, this experiment is fraught with danger.

The slightest carelessness is death.

So how do you minimize risk...... In other words, the bottom line of Shiraishi is that it can allow the subject to survive even if it fails.

This is also the first thing to solve.

Shiraishi felt very strange, when he took the initiative to kill, he didn't feel much discomfort in his heart, but when it was his turn to experiment, he hesitated.

It's probably because of the feeling of playing with life, and I guess I hate it very much.

But that's what Shiraishi knows, the only path to true science.

Medical science, as well as other kinds of science, many times, use this kind of inhuman human experimentation, and these sciences are also so advanced.

The same is true of the medical ninjutsu in the ninja world, which is based on the premise of a lot of sacrifices, which has been valued by the ninja village.

The emergence of the human experiment guidelines is only to comfort the mental health of the executor.

Either way, it's playing with someone else's life.

It is a completely different mental activity from directly plundering the lives of others.

"What's wrong, Lord Shiraishi?"

A test subject's assistant asked, seeing Shiraishi standing next to the test table in a daze.

"Nothing, just thinking about something boring."

Shiraishi shook his head.

Thinking so much, it's impossible for me to give up the job I'm doing.

Therefore, how to minimize the risk of the next round of human experiments is the most meaningful and valuable thing.

Suddenly, remembering something, Shiraishi looked at the five test subject assistants who were helping him in the laboratory, and asked them in a serious tone:

"By the way, do you want to be a ninja?"

The atmosphere in the laboratory fell silent.

After a long time, one of the test subjects' assistants stammered, "What do ninjas mean...... refers to ......"

"It's about learning ninja skills, like ninjutsu or something."

Shiraishi explained casually.

"We ...... May I? ”

It seems a little intimidating, and a little unconfident.

"Absolutely. Your current physical fitness is better than that of many working ninjas, and even if you specialize in physical arts, you can reach the level of medium ninja within a few years, or even surpass it. ”

Shiraishi knew where these people were not confident.

When the five of them started, they were just a group of ordinary bandits, and they had not undergone any systematic training at all, let alone ninja skills.

Now that it has been improved by natural energy, it does not take into account the experience of actual combat with real ninjas, as well as tactics, and in terms of physical skills, it is no longer weaker than the standard lower ninja level.

It's inconceivable to reach the level of middle ninja or even higher in a few years.

But natural energy can do that.

That's the magic of natural energy.

The methods of absorbing natural energy that he has developed are all based on the premise of being suitable for the development of the human body.

Although the system is still in its infancy, and there are still many incomplete points, it is enough to benefit people immensely.

"How? Do you want to really do things for me? I can give you a certain amount of freedom, and even make it better for you to live in this world. Even if you were murderous bandits in the past, you still want to protect your parents, wives and children, right? ”

This sentence, like a knife, is deeply rooted in the hearts of the five people.

One of them had a complicated face, as if he remembered something not so good.

"The five of us actually come from the same village, and our motherland is the land of rain."

"Was it the main battlefield of the previous war?"

Shiraishi had heard of it, a place where it rained all year round.

It's called the 'Crying Nation'.

Sandwiched between the three major countries of fire, wind, and earth, once a war breaks out between the big powers, Shiraishi can imagine the life of the people there.

It's like hell on earth.

"Yes. A few years ago, the ninjas who came to our village, although they did not kill us, took all our daily necessities, food, quilts for the winter, and even houses were occasionally requisitioned......"

Yet the humble has been living, the humble living.

In this world where there is no warmth at all, everyone is desperately trying to live.

If others come to rob their own things, then they will rob the weaker ones themselves.

It's all about living.

"In the beginning, there were more than 20 of us, but sometimes the things we did were so dangerous that many of our companions were killed...... In fact, there is nothing to complain about, everyone is desperate for survival. I don't regret it, I don't think it's a righteous act, it's just a desperate struggle to survive......"

The eyes of the man who spoke were gloomy, and even his expression became numb.

For even food and clothing...... No, even people whose own country and family have been ravaged at will have done their best to survive, and there is no need to blame anything.

Oppressed by the strong and not wanting to die, you can only step on the weaker and snatch food from the weaker.

It's just bad luck to die, and it's not worth complaining about.

If you are alive, you can continue to live until you are unlucky enough to die.

"This is the current state of the ninja world. It seems that the book I read to you before is still somewhat useful. ”

Hearing Baishi's words, the five of them looked at each other and smiled bitterly.

Compared to the fear at the beginning, they now respect Shiraishi more than they fear.

"What are your options? I have some inconvenient things for you to do. ”

"We're here to help."

The five of them bowed down to the white stone one after another.

It is reasonable that the five of them are so knowledgeable.

In order to survive, and for a better survival, and to think about the family members who are suffering in the Land of Rain, if you don't choose to join Shiraishi's camp, you can only continue to be an experimental subject.

"Hmm." Shiraishi nodded, and continued, "I still have a month to stay in Konoha. I'll try to help you lay some groundwork for this month. After that, I will send you somewhere else, and I have a very important thing for you to do. ”

- Gather intelligence outside.

In particular, there are two countries, the country of ghosts and the country of iron.

Now he needs to do something about the future.

In the ninja world, these two countries have never been affected by war, and they are permanent neutral countries.

In particular, the country of ghosts, due to its special status, is safer and more hidden than the country of iron, and it will not attract too many people's attention.

Before leaving Konoha, it is necessary to set up a stable stronghold.

And in the ninja world, it's easy to suffer alone.

With the cultivation system of natural energy in his hands, if he has more time, he doesn't dare to say that he is at the upper ninja level, and it is really a simple matter to wholesale a ninja at the middle ninja level.

Most importantly, he had a very wealthy friend.

In this world, money can solve most problems.