Yichen sat on the ground and rested for a while before he could barely recover from the pain all over his body. Then start to summarize the mistakes made in the previous cast.

After a while, after feeling that his body had recovered, Yichen once again cast a storm of water, this time it was very smooth, and Yichen directly controlled the storm wave to carry out a covering blow to the other side of the river.

Looking at the messy picture on the other side of the river, Yichen clenched his fists, and he was very satisfied with the effect. Since then, there has been another killer feature. B-level ninjutsu storm waves, the number of seals is 27, and the amount of chakra needs to be consumed is 25B.

After successfully casting the Storm Water Rush, Yichen no longer deepened his cultivation. Like the original Purple Electricity, the purpose of Yichen's ninjutsu was not to be used in fierce battles. But at some special times, it is used to attack fortifications. So proficiency or something, it doesn't matter for the time being.

Yichen's attention turned to the Waterline Technique.

With reference, the upgrade of Yichen this time is much smoother. According to the previous assumption, Yichen adjusted the seal, and then slowly formed multiple waterlines.

Unlike before, when a waterline shot out of his mouth, this time the waterline was generated out of thin air in front of Yichen. And six waterlines were generated at once.

Seeing this scene, Yichen was overjoyed, but the hands that controlled the waterline did not let go, and he kept the seal.

Then Yichen took a deep breath, and then manipulated the six waterlines, shooting forward together.

Puff puff puff.

After 6 consecutive sounds, Yichen saw a few more small holes in the ground in the distance.

Remember the URL

Yichen hurriedly stepped forward to take a look.

"Yes." The power is indeed a little smaller, a little smaller than the waterline technique alone, it should be that the proficiency is not enough, and it should be good to practice a few more times.

Thinking that he would soon be able to harvest a group attack ninjutsu, he began to practice again.

Compared with the first time, it was obviously much better, generating more than 10 waterlines at once, and then Yichen consciously controlled them to shoot out one after another.

Feasible!

After another dozen sounds, Yichen observed the power again.

This time, Yichen was very satisfied, this time the power of the waterline technique was no worse than a single waterline. In addition, Yichen is able to control the direction of the lasing of each waterline. It can be said that this ninjutsu Yichen has finally been successfully developed.

The whole casting process requires 13 seals, which consumes 50C chakra, and the more waterlines, the greater the consumption. If you want to control the timing of your waterline attack, you also need to keep your hands sealed.

"Hoo ~~~~~"

With a long sigh, Yichen began to calm down. The feast is still to come, and Yichen's purpose in developing ninjutsu is not to cast a dozen waterlines. Rather, it is to exert a wide range of water pressure lines.

With the power of the water pressure line and the group attack, this kind of ninjutsu is what you expect. Yichen believed that once it was developed into an attack, its power would not be much worse than that of the group ice escape without the moon mirror at the beginning.

Next, Yichen began to try the technique of group water pressure according to the method of group water line technique.

It's just that the water pressure line has high requirements for chakra control, and it is difficult to perform it in groups, Yichen tried many times, until the chakra was exhausted and unsuccessful.

However, Yichen is still very excited, although he failed today, Yichen can feel that the thinking is correct, and what is missing is only proficiency.

If you wait for yourself to get used to this complex control, I believe you will be able to succeed soon.

It just so happened that the 7th team had just finished its mission, and there were still a few days to rest.

So Yichen is not in a hurry, and plans to continue practicing tomorrow.

After returning home, Yichen remembered that there was still a scroll that had not been opened.

Yichen opened the other scroll, only to see that what was recorded inside was similar to the foundation of the sword technique that Zidian had given him.

It's just that it's more suitable for yourself than what Zidian gave.

The share given by Zidian is suitable for sword ninjas, Yichen is not a sword ninja in the full sense, the purpose of his training foundation is to improve physical fitness and chakra amount, so that sword foundation must be combined with other physical exercises in daily training to ensure the coordinated development of Yichen's whole body.

And the one given by the well hand is more suitable for Yichen, who practices both knife skills and physical exercise. It can help Yichen save a lot of exercise time.

Seeing this, Yichen had to sigh, this is the family heritage, this scroll, if he got it earlier, I don't know how much time he can save. Maybe his ninjutsu has the blessing of these times, and he has already practiced to a higher level.

Shaking his head, Yichen began to analyze this exercise manual, this thing does not mean that it is completely suitable for Yichen, Yichen can only use him as a reference, and he also needs to summarize a set of cultivation methods that are most suitable for him according to the foundation of sword skills. Then Yichen had to purchase some training equipment according to the new method.

The two large parts of the silver accumulated before were given to Yahiko, and now Yichen has not much left, so thinking of the cost of buying equipment, Yichen is a little distressed. But in the end, I gritted my teeth and bought it all.

From tomorrow, the training method will be changed again, alas, every time the training method is changed, it is a very uncomfortable thing, and many habits have to be changed.

And because of the time saved, Yichen also had to adjust a new routine.

The next day, Yichen first conducted a physical exercise according to the new method, and then came to the place where he practiced yesterday to start the development of the group water pressure line technique.

After five days of this, Yichen finally performed a ninjutsu with 3 water pressure lines.

Although the number was only three times the original, Yichen found that the chakra consumption was a real B-grade, reaching 1.2B. And with the increase in the number of water pressure lines, it is estimated that the consumption of Yichen will increase again.

This is a little embarrassing, Yichen has not experienced the feeling of lack of chakra for a long time because he has not learned B-level ninjutsu before. Unexpectedly, the upgraded water pressure line technique brought Yichen back to reality.

Yichen's current chakra volume is about 3.2A, and it is estimated that the rapid growth of chakra will stop in another month, and Yichen's chakra will remain at about 6A by then. After that, the increase will become very slow.

However, three water pressure lines will consume 1.2B chakra, and the number of group water pressure lines expected by Yichen will reach at least hundreds or thousands.

In this way, chakra is far from enough.

Yichen has a headache, and the lack of chakra is a hard injury, and there is no shortcut to this. His strength is now a ninja, but the amount of chakra is the bottom of the ninja.

Alas!

Yichen sighed, thinking, you can't eat fat in one go, it's better not to think about hundreds of water pressure lines first, let's make sure that you can use more than a dozen water pressure lines.

In this way, after a day of proficiency, Yichen was finally able to control the water pressure line to maintain a maximum of 13, and no matter how much it was, it could not be controlled. The amount of chakra consumed is 11B.

It's just that because this ninjutsu has just been developed, the number of seals that Yichen needs to seal is 21.

This also means that this group water pressure line technique, like the storm water rush, can only be performed under special circumstances. However, Yichen is still very satisfied, and his long-awaited expectations have finally come true.

After all, although the water pressure line technique is consumed at B-level, its power is much stronger than that of ordinary B-level.

Like Storm Waves, this kind of ranged attack ninjutsu typical in the B-class, its damage to a certain individual is actually very small. However, as a group attack ninjutsu, the water pressure line technique is almost as effective as a general B-level single attack ninjutsu for individual killing.

This is remarkable, ninjutsu that can achieve such power is basically A-grade.

So after the development was successful, Yichen's first thought was to go to the contribution office and dedicate him to the village, and then exchange it for what he needed. It's just that now that I've seen the bottom of my chakra, I just gave up.

Yichen didn't go to the contribution office the next day, because today's vacation of Team 7 was over, and they were going to start the mission again.

Yichen came out of Xiao's office, a little excited, although he had already guessed, but he didn't expect the village to agree to his plan to open up a business road so quickly, and he also handed over the implementation of this plan to himself.

The description of the mission that Yichen received was to scout and plan the route of the caravan first, and also to obtain the ninja situation that the Rain no Kuni Xiao organization could use. Finally, write a complete plan and submit it to the village.

It would be too embarrassing to let Yichen, a business layman, do this, but this time Yichen has the help of the caravan arranged by the well hand, and this task is much simpler.

Yichen took the 3 members of the 7th team to the caravan that Ide said, and after showing the certificate, he set off with the caravan towards the Land of Rain. The caravans carried not high-class goods, but some local products of the land country, which were purchased directly from the civilian population. The purpose of this trip to the Land of Rain is to exchange a batch of specialties from the Land of Rain.

The leader of the caravan was an old man, the old man's name was Guangzhao, who was sitting in a carriage, chatting with Yichen.

Yichen didn't know if this trip would be profitable, and in this regard, the old man, who had been dealing with commodities all his life, was an expert.

"According to common sense, this kind of long-distance transportation of goods, you will not choose souvenirs, after all, these souvenirs to the country of rain, although they can be sold at a good price, but they are not too expensive. A trip is definitely a loss. ”

"However, this time is different, since this time you can enter the Land of Rain duty-free, the cost of this trip is only the salary of Xiao Lao'er and others, as well as the task remuneration of the ninjas, so we have to earn."

"If you really follow what you said, there will be ninja escorts for free in the future, then you can earn more."

"But this profit is still a lot lower than other goods."

Yichen nodded, he also understood that the trade between countries and the trade of agricultural products must not be very profitable.

But at this time, the old man Guangzhao said again: "But this trade also has advantages. ”

Yichen was suddenly curious and asked, "What advantage?" ”

The old man smiled and said, "All other commodities have to start from Iwa Ninja Village or the national capital, and the journey is long. And this business of our caravan does not have to choose such a far place as a starting point. ”

"This time we are exploring the way, so we set off from Iwa Ninja Village, in the future, this kind of trade, there is no need to start from the hinterland of the land of the earth, we can start from the border of the land country and the country of rain, so that we can save a lot of time and consumption on the road. In the same way, we can also start with the land of rain near the land of earth. ”

When Yichen heard this, his eyes lit up, yes, he was too limited by his thinking, and the caravans he escorted before all set off from Iwa Ninja Village, but in fact, most of the caravans did not start from Iwa Ninja Village.

So Yichen then asked: "Grandpa Guangzhao, if you start from the border, how big can that run be?" ”

Guangzhao laughed and said, "If you just let the border between the two countries start trade, then with the time advantage, the profit that the caravan can get will not be smaller than the profit of other goods." ”

After hearing this, Yichen's face was excited, he understood that this kind of business activity, relying on the support of the village alone is absolutely not enough, and the merchants must feel that there are enough benefits, so that everyone will join in spontaneously.