Exactly 20 days have passed in the blink of an eye.

It was quite a pleasant time for the children of Konoha Village.

Because during this time, Konoha Village ushered in the heaviest snow in more than ten years.

Thanks to the blessing of the physique of one country and one village, Konoha Village is actually quite rich. So the benefits are not bad, even if they are orphans, at least they will not be too cold and hungry.

Naturally, overly energetic children, that is really out of the reins...... Baby, fly up happily.

Of course, there are exceptions.

For example, Zhao Shiki, he is a fairly typical one.

During these 20 days, Akishiki's mood fluctuated greatly.

At first, the mood was pretty bad!

No way, those junior versions of Chakradan are too pitiful!

Because there is no information on this at all, it is impossible to refer to it. There was no way, so Zhao had to summarize it by himself, but in most cases, it was a little bit to change the structure of Chakradan's technique, and the most stupid method of trial and error was adopted.

As a result, Akishiki tasted almost all the pain!

Although the subjective factors are too big and there must be exaggeration, Zhao Shi dared to swear to the sky that during that time, he really wanted to die for a few days......

In fact, after eating some chakradan, either immediately or after some time, Akishiki was indeed killed several times.

In addition, sometimes, because it was too painful, Akishiki would also let the shadow clone do it for him and slap him to death.

It's just that every noon or early morning, he must be resurrected on time, which is somewhat helpless.

Zhao Shi believes that the sins he suffered during this period are estimated to be the sum of his several lifetimes.

So much so that if someone wants to gouge out his eyes, he can't guarantee whether he will choose to kill the other party in order to achieve the purpose of revenge.

There is really no happiness without comparison, and if there is a choice, he would rather use the opportunity to be gouged out once a day in exchange for this pain of being tortured for a long time.

In this way, Akishiki persevered for 7 days.

This was already the limit that Zhao Shi could hold onto, and if he hadn't made an obvious breakthrough, he would rather go to the Great Snake Pill and plant a Heavenly Curse Seal or simply have a cell transformation or something. Or maybe it's just bigger, it's not impossible to get the head tail beast to be refreshing......

But that afternoon, Hinata came to his courtyard again.

Obviously, the little girl came over secretly. Because of the special circumstances of his cultivation, not only would he be injured or even die from time to time, but even the surroundings would be in danger.

Akishiki still clearly remembers that he yelled at Hinata at that time.

The poor little aggrieved appearance of the little girl made Zhaoshi's heart ache.

However, Hinata-chan was not scolded for this, but took out the lunch box from behind his back and handed it to him.

It was only then that Akishiki realized that he had been involved in Chakladan recently, and although he hid it well, Hinata Kohinata, who got along day and night, still discovered his abnormality.

At the very least, the little girl knows that her brother has been eating less recently, and she seems to be in a bad mood.

With such a caring and kawaii girl, what can Zhao Shi do.

Naturally, he calmly warned Hinata not to approach the back of the courtyard at will. So he wiped out all the bento boxes prepared by his sister.

After eating that meal, Zhaoshi's mood was instantly healed.

At that time, I felt that I could hold on for at least 3 days!

Following Hinata closely, he actually walked around behind him and gave him a massage.

Although there are some problems with the little girl's strength, it is undoubtedly another happiness for Zhao Shi, who enjoyed her sister's massage for the first time.

Akishi thinks he might be able to hold out for a week!

Then, in the midst of pain and suffering, Akishiki really held on for another week......

This week, progress has been quite slow, and the main difficulty is that the chakra in Chakra Dan has exploded so quickly that for a while, Zhao Shi has not been able to collect it for use at all, but has caused damage to his relatively fragile chakra tendons, and this is also the biggest source of pain.

Since the chakra dan can't be contained and the outbreak is too fast, reducing the amount of chakra in the chakra list should have a good effect.

And it is.

It's a pity that it's not practical at all, because making Chakradan is much more elaborate than making the Flying Thunder God technique, and it naturally takes a lot of time.

According to the summary of the experiment, Akishi estimated that in order to achieve the ideal requirement, he would have to extend the potential of squeezing soul energy and body energy to seventy or eighty days in order to achieve the ideal requirement of chakradan consumption in one day......

It's so exaggerated in terms of inefficiency!

Even with Hinata's buff bonus, as soon as the day is over, Akishiki will declare the project a failure and forget about it completely.

For this reason, Akishiki even thought of the next way to strengthen the chakra, and he was going to dig a grave......

Let's see if the blood directly injected into the purpose of the generation can achieve its purpose - well, there should still be fresh blood in the big pillar, right?

Anyway, Zhao Shi is completely tired and tired, so he doesn't do it!

But happiness comes so suddenly!

It was not yet dark, and when Zhao Shi ate another chakradan, he was ready to go on a chakra rampage.

Who knew that at the moment when Chakradan took effect, it was as obedient as a sheep, like a clear spring, unhappily and slowly, merging with the chakra in his body.

This went on for a few minutes, and I have to say that it took a bit of time, but it didn't cause any pain at all, and it was a huge breakthrough!

It can be said that if the requirements are lower, this Chakradan can already be used as a template for mass production.

It's just that when Zhao Shi was excited to kill the shadow clone and absorb the memory, after comparing what he felt, he found that the utilization rate of Chakra was less than 30%.

In other words, out of 100 chakras, only 30 were digested!

The utilization rate is so low, and the absorption rate is still slow, how can this work?

Zhao Shi immediately set about it, and according to this Chakradan scheme, which is not known to be the No. 750 version, he and the shadow clone worked together to analyze and hypothesize, and design an experimental plan.

In the end, the shadow clones made a new generation of Chakradan according to different plans.

The Akishiki deity still plays the role of the test subject.

But unconsciously, the mentality of both sides has gradually changed.

Akishi has already begun to enjoy the happiness that Chakra has earned for nothing.

As for the shadow clones, who cares about their feelings......

At least until the shadow clone disintegrates, Akishiki won't care.

As for the disintegration, it's all the memories of the past anyway, and I believe it will be forgotten soon.

And just like that, on the 20th day.

The final version of Chakradan in the 3rd year of Shoshiki has come out!

After Zhao Shiki's own personal test, he has achieved his required effect, its absorption speed is less than 30 seconds, and the utilization rate is more than 90%.

The only defect that is not considered a defect, Chakradan's shell is difficult to digest, and if you eat too much in a short period of time, there will be problems - that's right, the new Chakradan has a shell, and the shell is not yet digestible, and its structure has only been partially modified in the Flying Thunder God Technique, and an additional 36 fragile vents similar to Chakra points have been added.

The principle is as simple as that, but it took 20 days, more than 800 experiments, hundreds of serious injuries, and 34 fatal injuries before it was finalized!

"If it is announced, basically as long as there is the potential of a medical ninja, you can make Chakradan, and I am afraid that it will not immediately become popular in the ninja world. However, as a pioneer, the price spent is as bad as your sister! Akishiki shook his head and decided to hide it and pass it on to her when Hinata reached the age when she had to go on a mission.

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PS: It's okay to make chakradan without squeezing the life force, but Zhao Shi needs to maximize the efficiency of his cultivation to do so.

In addition, this will conflict with the practice of the second immortal mode. Zhao Shi has already mastered one, and he doesn't care much about that.

Eventually, Akishiki has discovered that the lack of chakra will limit the speed of entering the Immortal Mode.

A lot has been written before, so for the sake of brevity, none of these have been written. More on that later.