The solution that Qingming came up with was to use the most advanced sealing technique possible, while leaving a slight flaw, so that the solidified chakra would enter an extremely slow escape state.

Thus, the most difficult problem of the hot sword was solved.

But with the ensuing problem of the longevity of the hot sword, the scorpion even went to Chiyo's mother-in-law for help, he and Qingming had selected the most suitable sealing technique, and after careful calculation, they estimated that the blade of the hot sword would lose more than half of its power in about a year.

Uehara thought it would be better and made the hot sword into a consumable, so that there would be a greater demand in each ninja village. It's just a pity that because of this defect, the price of the hot sword will be greatly reduced.

A ninja knife that can easily cut through other people's ninjutsu and cut through the enemy's ninja without any effort can cost 10 million, right?

But because of the short service life, only one year, Uehara had to discount one-third and only sell for three million.

Three million, a terrifying ninja second only to the Seven Swords of the Fog Ninja has a one-year service life, is it a good deal?

The hot sword was successfully made, this is an epoch-making ninja tool, and it is not to say that it is epoch-making to say that the power of the hot sword can change the war, after all, the hot sword is less than one-tenth of the sword of the second generation Hokage Saken. However, the hot sword can be mass-produced, which is the best ninja equipment except for the top ninja tools such as the Seven Swords of the Fog Ninja.

The Seven Swords of the Mist Ninja cannot be mass-produced, but the Energy-Producing Hot Sword can easily slash through any other ninja blade of non-chakra metal weapons.

In a hot sword, the amount of chak of twenty ordinary upper ninjas is solidified and condensed, which means that an ordinary person holding a hot sword can be with any upper ninja who has injected a weapon into the chakra, and bump into each other more than a thousand times with a ninja tool, and the upper ninja still can't cut off the hot sword.

If Star Shadow Master the nature and form change of the thunder attribute in the future, naturally, after the Chakra solidified by the Star Shadow is made into a hot sword, it has the power of the change of the nature of the thunder attribute.

The ninja sword made of solidified chakra with attribute changes is held in the hands of ordinary people, and it is the same power as when a thunder escape upper ninja who has mastered the change in nature instills chakra into ordinary ninja equipment.

Controlling the Star Ninja requires political means, and the only known way in the Ninja World to heal the Star Ninja's physical wounds is Uzumaki Aoi's Chakra.

At Uehara's behest, every time Aoi healed the star ninjas, it was enough to stop and not completely cure them.

In this way, the star shinobi did not completely solve the hidden dangers of the body, so they could only serve Uehara.

In fact, even without Uehara's instructions, if Aoi is allowed to do it with all his might, Aoi will not be able to completely cure the hidden dangers of the Star Ninja's body. The peculiarity of the Peacock Mystic Method practiced by the Star Ninja was destined to make the deterioration of their bodies irreversible as soon as they began to practice.

The Star Ninja became the first part of the assembly line to make the powerful ninja "Hot Sword", and their daily work was to constantly refine and solidify the chakra from the body and seal it. With the use of the Peacock Method, the physical condition of the body they had treated began to rebound again, and the condition deteriorated, so Aoi had to periodically treat the star ninja.

One day, the former star shadow asked Uehara if he could return the star of the village to them and let him continue his cultivation. In the past, the star ninja was cautious when borrowing the star to practice, although the more radiation received from the star, the more Chuck grew, but the deeper the deterioration of the body, the star ninja had to deliberately suppress their own practice. It's paradoxical, the longer you practice with the stars, the stronger you become, and at the same time get closer to death.

Now it's different, there is Aoi who can help Hoshinobi heal his body, and it is possible to rely on Hoshi for cultivation without moderation.

This seems to be a good way to increase strength, Uehara frowned. Of course, this is just a way to increase the strength of the star shinobi himself.

After consulting with Scorpion and Harumi, Uehara decided to fulfill Hoshinobi's wish, but there were preconditions.

First, only the star ninja who has been confirmed to have mastered the changes in the nature and form of the chakra are eligible to use the star to practice. Second, contribution to the City of Peace is also a criterion.

Now, the star shinobi has completely become one with the City of Peace.

Uehara had already given the star to the scorpion, and had to let the scorpion cut off a very small piece of the star, and Uehara deliberately divided a remote area for the star ninja at the edge of the city of peace, and built an underground dense deep underground. For safety reasons, even if it is buried deep underground, the entire cultivation area is sealed, and the outside is surrounded by a dense cement protective layer up to ten meters thick.

Radiation or something, no one knows better than Uehara, the warehouse where the nuclear waste was stored on the earth in the previous life was also sealed with concrete.

The hot sword made of chakra solidified by the star ninja who has mastered the nature and form change of chakra is far more powerful than that made of ordinary chakra that has not changed in nature.

Therefore, in order to produce better quality ninja equipment in the future, Uehara had to give the star ninjas enough free time to practice.

A good news is that there are only seventy-two star ninjas in existence, and they all have the five attributes of wind, water, earth, fire, and thunder, as long as there are relatively rare wind attributes, there is only one. This means that Uehara can craft hot swords that are suitable for all types of ninjas.

The star ninjas only have to work half a day, from morning to noon, and then half a day they use it to practice chakra changes, they also have two days off, and they often have holidays, even Uehara is envious.

Uehara works all year round and has no time off.

Maybe it's because the temptation is big enough, the former star shadow with the strongest combat power in Star Ninja Village, his own attribute is the thunder attribute, in order to use the star to cultivate as soon as possible, with the special help of Uehara, he got a glimpse of the path of the change of the thunder attribute.

The quality of the cured Ray Chakra has improved considerably.

Qingming finally made a satisfactory hot sword based on this.

At the testing ground, Qingming, a guy who is not good at swordsmanship, rushed left and right with a transparent blue ninja knife with a blade, and easily split one iron puppet after another in half.

This knife is capable of slicing through all the ninja tools made by Harumi in the past that have not been made of chakra metal.

Waiting for Qingming's body art salted fish to experience the addiction of a physical art master, "It's perfect, Master Qingming!" Uehara applauded him heartily.

"This is the most powerful ninja knife that can be made at this stage." Qingming threw the ninja sword to Uehara, "Lord Uehara, we may be able to exchange the hot sword for the precious chakra metal of the other ninja villages. ”

Chakra metal is not ordinarily expensive, the first time Uehara came into contact with chakra metal, or when he became a special shinobi, Han gave him a small chakra kunai, that kunai was later made into a three-edged army thorn by Uehara, and then later, Uehara became a monster Satoru, and Satoru lost all the things he was carrying.

"Okay, the matter of the hot sword transaction will be entrusted to Master Qingming." Uehara politely said to his partner.

Qingming is an ambitious person, but the City of Peace can provide him with shelter, and Haruaki finds that there will be many unexpected things here, so Harumi has not yet decided to leave.

It can be said that Uehara, who makes strange things from time to time, is an important reason for Qingming to stay here.

The mothership of the empty ninja, the star, has the special chakra of the star ninja, and now there is the sword of Thor, these things that make Qingming fascinated can be studied casually, next time, who knows what Uehara will get again.