The war has nothing to do with Shiraishi for the time being, although the coming of the war makes him a little unhappy, but even if he really wants to go to the battlefield, it will be two years later.

Optimistically, maybe in two years the war is over, isn't it?

Moreover, war has the benefits of war, because of the war, Konoha Village is a little short of manpower, and the Hokage's direct shadow department will definitely be busy every day, who cares about a little transparent student like him in a ninja school?

The attention of the Hokage and other high-level officials was attracted by the Sand Hidden Ninja.

- Uchiha clan land, the underground laboratory of the Ruri family.

It is 100 square meters spacious, and it is fully equipped with electrification equipment to illuminate the laboratory as bright as daytime.

In the middle is an open space for people to walk around, and electronic equipment and operating tables for testing are also placed.

The floor-to-ceiling transparent cylinder filled with green solution, soaked in parts extracted from animals, has been catalyzed by an unknown degree and method to become an extremely strange shape.

Shiraishi held a glass test tube in his hand, and in the test tube stored an incomparably condensed pale green liquid energy, which was the natural energy entity that Shiraishi extracted from the earth and air.

"How's it going?"

Ruri, who walked down from above, asked about the progress of research on natural energy.

In order to help Shiraishi do research safely, whether it is equipment or materials, Liuli will find a way to get it.

The manpower and money spent on it cannot be compared with the previous petty fights.

"No, although the natural energy has been around for a little longer than before, the time to maintain the embodiment is still too short."

Shiraishi sighed and put down the test tube, the pale green liquid energy in the test tube began to dilute without warning, the color became lighter and lighter, and finally turned into a blank, and the test tube became empty.

Natural energy has been volatilized.

This can happen if it is not fused with other substances while the natural energy is materialized.

Of course, it's not that it can't be used, as long as it is used between the volatilization of natural energy.

That is, the efficiency of sustainable use will be slightly lower.

After all, the experimental process of receiving and refining, and solidifying natural energy is very cumbersome, and it also needs to be supplemented by some metals that have ultra-high conductive properties to chakra.

Therefore, extracting natural energy is not only a tedious project, but also very expensive.

"And, the most important question is not this."

"What do you mean?"

"You see, the various biological parts in this are because on the basis of the chakra, after injecting natural energy, the immortal chakra is formed and absorbed, and the result is this strange form."

Shiraishi walked up to a floor-to-ceiling glass cylinder and tapped it with his fingers, making a crisp sound, and the alien inside did not react, like a dead thing.

"What does this mean?"

"In other words, the use of the Immortal Chakra comes with a very terrible risk."

Shiraishi's eyes became gloomy and inexplicable.

Unhurriedly, he walked to the bookshelf to the side, picked up a scroll, spread it out on the table, and pointed to one of the lines.

"Longdi Cave, Miaomu Mountain, and Wet Bone Forest are places called the Three Holy Lands. It is said that immortal arts can be cultivated in these three places, but the immortal techniques inherited from the three holy places seem to be different from our human processing system, and after learning, they will produce corresponding biological characteristics. ”

Speaking of this, Shiraishi couldn't help but sigh again:

"The Uchiha clan has a really rich collection of books, and although I haven't investigated any specific cultivation methods, these materials have also inspired me a lot. In other words, the immortal arts of the three holy lands are likely to be unsuitable for human beings, and it is necessary to find a correct immortal system suitable for human beings from multiple paths...... It's an incredible amount of work. ”

Shiraishi has definite evidence that the immortal system of the Three Holy Lands is not suitable for the human body system.

Because the biological structure of frogs, snakes, and slugs is completely different from the structure of human life.

The immortal art suitable for frogs, snakes, and slugs is likely to collide with the human processing system, and in that case, the mortality rate and failure rate of the human beings who cultivate the immortal art of the Three Holy Lands will be infinitely higher.

Shiraishi looked at the creatures in the floor cylinder that had become aliens because of the acceptance of the Immortal Chakra, which was the best proof of this.

For example, using a mouse as a source for refining the fairy chakra, and then transferring this fairy chakra to the snake's limbs, the snake has some of the characteristics of a mouse.

In the same way, if the snake is used as the source of refining the fairy chakra, and it is transferred to the mouse, the characteristics of the snake will appear on the mouse.

That's how the alien creatures inside the floor cylinder came about.

This is also the reason why Baishi judged that the immortal system of the three holy places was not universal to humans.

The human body structure is more complex and richer than that of frogs, and if something goes wrong, the consequences can be devastating.

Until he is completely sure, Shiraishi will not try it himself.

Therefore, Shiraishi can only experiment with animal bodies first, and then experiment with human bodies when the risk is minimized.

But this kind of inhumane thing is rejected by Shiraishi.

But if you want to master the fairy chakra without risk, human experiments are unavoidable.

Life is not such a degrading thing.

That's a bit hypocritical.

However, this is how the reality develops step by step.

The more advanced medical science, life sciences, etc., the more impossible it is to avoid human experiments.

It is all based on the countless sacrifices and deaths of our predecessors, and they are valuable experiences that have been gained.

Fortunately, the study of immortal arts has only just taken the first step, and it should be many years before it is used in human experiments.

Besides, even if you can't use the fairy chakra, the uses of natural energy are very extensive.

The vitality contained in natural energy is very large, and it has extremely high medical value.

Therefore, slowing down the research of the Immortal Chakra is a very wise choice for the current self.

Now what he has to do is to extract the utilization rate of natural energy to the maximum and use it to improve his strength.

"Liuli, can you help me find some medicinal herbs? I want to refine new medicines that can improve the body's abilities based on natural energy. ”

"What should I do with the experiment of the Immortal Chakra?"

"I still need to collect more immortal materials so that I can carry out the next experiment without fail, otherwise the experiment of fusing immortal chakra is too dangerous, and I will die if I am not careful. But unfortunately, we don't have much information about the three holy land immortal arts, so we can only take our time. ”

Shiraishi was not in a hurry to use the Immortal Chakra, and it was already a special joy to be able to apply natural energy.

"Is that so? Yes, write the names of the medicinal herbs you need, make a list for me, and I will ask the ninja cats to buy and collect them as soon as possible. ”

Ruri has her own private channels, and she can avoid the eyes of everyone in Konoha and get all kinds of materials from the outside, so it is not difficult to buy medicinal materials at all.

And in order to protect the secrecy of the laboratory, Liuli has arranged a large number of activating detonation charms around it, if an outsider breaks into here, Liuli will sense it, and will immediately activate the technique, detonate all the detonation charms in the laboratory, and let the intruder and the laboratory explode together, destroying everything here.

"I'm sorry for you, if war is inevitable then, we must be ready now. I have a hunch that this war will be very tragic. ”