The reason for choosing this is also very simple, the learning speed is fast, with Yichen's mastery of the storm water rush, if you give Yichen a few more years, you can also develop a big storm water rush.

It's just that there is an embarrassment in this ninjutsu, that is, the consumption of chakra is too much, and the chakra consumed by a normal-scale large storm water rush is about 20A, and on this basis, increasing the output of chakra can also increase the power of the storm water rush.

But now the total amount of chakra in Yichen is only about 20A. That is, the Yichen in a full state, after performing a ninja, it will be wasted.

Originally, Yichen didn't plan to choose this ninjutsu, but considering that the battle was about to start, he didn't have much time to practice A-level ninjutsu, so Yichen chose this big storm rush. Something is better than nothing. And if he has to leave the village to go to the battlefield, Yichen will not be able to return to the village for a long time, so he will not have a chance to exchange for A-level ninjutsu.

Choosing other ninjutsu, Yichen has no time to practice.

At this point, Yichen used the rewards obtained from the Rain Country's Calculation Root to exchange for the A-level Earth Escape, the Art of Mountains and Soil, and exchanged the rewards from the Water Cutting Technique for the Great Storm Water Rush. I also exchanged my contribution points for a method of forging my body. Now Yichen still has tens of thousands of contributions left in his account, but Yichen feels that he doesn't need anything now, so he no longer struggles and leaves the contribution office directly.

After exchanging the things he needed, Yichen prepared some items that might be used during the war, but fortunately, Yichen had the bug of sealing technique, and these items could be carried with him through the sealing scroll.

In the following days, Yichen did not take his subordinates out to carry out tasks, but stayed by the small river near the village every day to conduct special training for the three disciples. Yichen himself is also seizing the time to practice the two A-level ninjutsu that he has just arrived.

Yichen's first practice is the Great Storm Water Rush, because the consumption of the Great Storm Water Wave is huge, so Yichen doesn't dare to waste Chakra. Yichen borrowed Zhizihui's method and first understood all the theories of the big storm water rush. Then rehearse the whole process in your mind and look for possible loopholes on your own. Then come up with feasible solutions for these vulnerabilities, then rank these solutions, and finally try the most suitable first.

This method is really good, and it greatly reduces the number of times Yichen tries ninjutsu. However, Yichen also knows that the reason why it is so smooth is also because he has a foundation in the ninjutsu of the Great Storm Water Rush. As an upgraded version of the storm water wave and the second upgraded version of the water rush, Yichen is a descendant of the same lineage. It's easy to learn.

Originally, Yichen expected that there would be more than a dozen times, that is, he would be able to perform a big storm in about half a month. Now with Zhizihui's method, Yichen succeeded in seven or eight times.

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Since this ninjutsu Yichen is used as a hole card, after learning it, I never took the time to practice it again. I can't afford to wear it out.

Next is the art of mountain and soil, and the difficulty of cultivating the art of mountain and soil is much higher. Fortunately, the Art of Mountains and Soil can control the output of Chakra. Yichen has tried, and in the least case, as long as he consumes about 70B chakra, he can use the art of mountain and soil, but at this time, the power of the art of mountain and soil is about the same as that of ordinary B-level ninjutsu. As for the upper limit, Yichen felt that this ninjutsu did not have a chakra upper limit.

After all, Yichen knew that the loess in the original book used this ninjutsu to restrict the outer way golems.

In order to increase the number of exercises, Yichen controlled the consumption of chakra to the lowest level, so that he could practice more than twenty times a day. Yichen practiced for about ten days and finally learned this ninjutsu, but found an embarrassing thing.

The two hemispherical clods summoned by Yichen were too slow to close. As long as it is a normal middle ninja, it is impossible to be trapped in Yichen.

This can't be said that this ninjutsu is useless, at least when it is used against enemies who can't move, such as when dealing with enemies who maintain a defensive formation, it is very effective. But in this way, there are too few places available, and Yichen feels sorry for the A-level title.

After thinking about it, Yichen decided to go to the loess for advice.

Recently, the situation in the ninja world has been tense, and an elite ninja like Loess will not leave the village easily, and when Yichen found the other party, the other party was also practicing.

However, to Yichen's surprise, the loess was actually cultivating the nature change of the fire attribute.

Yichen remembers that the loess in the original book has only one attribute, and looking at the current style of the loess, is it taking a different path from the original work? Yichen didn't guess, he watched for a while, and saw that there was no progress in the change in the nature of the fire attribute of the loess, so he went up to say hello.

Loess naturally saw Yichen a long time ago, but he was too attentive just now, so he didn't say hello. Seeing Yichen coming, he also stopped the movements in his hands.

Yichen first inquired about the development of fire attributes in loess.

It turns out that the loess did not intend to develop the fire attribute in the first place, and the character of the loess is there, but it is not very suitable for cultivating the change of chakra nature, and the soil attribute is also felt in the stone forest, not considered to be developed by himself.

At this point, loess is not as good as dust. Yichen has now developed three attributes, although the development of water and earth is a little confused, but the development of fire attributes still has a lot of experience.

Chatted with Yichen and Loess about the detailed process and experience of developing fire attributes.

After chatting about it, I realized that the loess cultivation of the fire attribute was still because of Yichen, and the report that Yichen handed over to the village before was worth tens of thousands of contribution points, so that many ninjas with various attributes were born in Iwa Ninja Village. So Loess also wanted to try.

Loess knew that the report was written by Yichen, so he simply asked Yichen seriously.

Yichen was originally here to ask for ninjutsu, so he directly suggested that in the next few days, let Loess train with their first class. There is naturally no problem with loess.

Starting the next day, Yichen's three disciples were practicing their own projects while Yichen and Loess discussed how to practice the new attributes. Not only is loess practicing the development of fire attributes, but Yichen is also developing the fourth attribute thunder attributes.

Because it is best to consume the original chakra after the change of nature to develop new attributes, Yichen first practices the art of mountain soil under the guidance of loess every day. Then the change in the nature of the lightning properties is studied.

The same is true for the loess, first practice advanced ninjutsu to consume the original chakra, and then practice the fire attribute.

Time passed day by day, and the loess practiced the fire attribute with the help of Yichen, but the proportion of the fire attribute of the loess is not much, and it will take a long time to practice well. But at least it served its purpose.

But Yichen's thunder attribute simply didn't even enter the door. However, it is not without harvest, at least under the guidance of the loess, the art of mountain soil is much easier. The speed at which the clods of soil are closed is also much faster, and Yichen feels that at this speed against the middle ninja, as long as the other party is not a good speed of the middle ninja, it is still very likely to succeed.

After Loess successfully cast a Hao fireball, he stopped training with Yichen and them. He is not like Yichen, Yichen is now instructing three disciples even if it is his job, Loess is taking leave to practice ninjutsu. Now that the nature change of the fire attribute has been successfully completed, it is natural that he has to go back to work.

After the loess is gone, Yichen is left alone, and Yichen has become a little restless because of the war, which will be even more quiet. Yichen doesn't want to practice thunder attribute development anymore, attribute development really requires a lot of patience. And the war is approaching, and Yichen's heart can't calm down at all.

Yichen decided to become proficient in the art of light and heavy rocks again, and strive to develop the technique of aggravating rocks as soon as possible.

In fact, Yichen has tried to practice chakra fusion now, and although Yichen's earth attribute is far from meeting the minimum requirements, Yichen's water attribute obviously exceeds the basic requirements. After all, the technique of water cutting has been developed, and now the degree of mastery of the changes in the water properties of Yichen is very high. To a certain extent, it can make up for the lack of soil properties.

But the result of the attempt made Yichen very frustrated. The standard mentioned in the A-class secret vault is the minimum standard, and Yichen feels that trying to cultivate chakra fusion with this standard is estimated that he will not succeed in a few decades.

Instead of wasting that time, it is better to master the soil attributes thoroughly to save time and effort.

It's just that the mind is not quiet, and it is true that you can't practice the nature change of the thunder attribute, but can you practice the technique of developing the aggravated rock? Yichen was slapped in the face by reality.

It turns out that what Yichen does in his current state is half the effort.

Fortunately, Yichen's personality is still relatively peaceful, and after finding that he had a problem with his mentality, he immediately thought about resting for a few days to relax his nervous mind.

But before Yichen could relax, an appointment came down. Yichen was appointed as the temporary third deputy commander of the Eastern Army. Yichen was a little overwhelmed when he received the order, and just now he was still feeling the pressure of the approaching war, but the war suddenly pressed on him.

Yichen, who received the order, was a little panicked at first, although he had participated in many battles, but large-scale wars had only been seen on TV.

But in addition to panic, there is also a diametrically opposite emotion, that is, relaxation, a kind of relaxation that this day has finally arrived. I've been preparing for so many years, and I've finally waited for this day. Yichen closed his eyes and took several deep breaths, and when Yichen opened his eyes again, the confusion and anxiety before were all gone. All that remains is calmness and sharpness.

In just a few breaths just now, Yichen completed another test of will.

At this time, the dark part who gave Yichen the order suddenly laughed: "Yichen, you are very good, you have this mood at this age, and I gave Yicang an order just now." You're even better than him, and it takes less time to adjust. The owl has received a good subordinate. ”

After hearing this, Yichen realized that this was also a test for the village, a test of the mental will of the younger ninjas. Listening to this person's meaning, he should also be the captain of the dark army at the same level as the owl.

So Yichen inquired: "Senior, Yicang has also received an appointment?" How was he doing? ”