The ancient sword-casting technique is roughly divided into five steps, namely modeling, dispensing, smelting, pouring and post-casting processing.

The swordsmithing technique of Euro Zi strives for perfection in dispensing and smelting, and the sharpening of the blade in post-casting processing is a unique way, using internal force as a medium to open the sword.

This method requires a very high level of control of internal forces, and if it is an ordinary sword, Euro Zi can completely control it.

It's just that the two swords, Nameless and Peerless, have spent more than ten years of work, and the materials used are extremely special, adding unknown metals in extraterrestrial meteorites, so the requirements for this internal force blade will be very different.

If it is not well controlled, then the sharpness of these two swords will be greatly reduced, which is definitely what Euro does not want to see.

This is also the fundamental reason why for so long, Eurozi has not dared to sharpen the blades of the two swords that are basically about to be completed.

In the past two years, Ou Zi has basically not forged a sword, and has practiced his internal strength and swordsmanship in the valley.

It's just that his age has long passed the ancient age, and the internal strength method he has practiced is not particularly profound, so his improvement is extremely limited.

According to Eurozi's estimate, with his current level of internal strength, the chance of a perfect blade for the two swords is less than 30%, after all, these two swords are added with special metals in meteorites, which are very different from ordinary copper-iron alloys and the like.

And to improve the success rate, then it is necessary to reach the point of perfection in internal force, if you can reach the legendary realm of returning to the basics, then it can almost be at your fingertips.

It's a pity that Euro Zi himself is old, and his health no longer allows him to wait, so he decided to give it a try.

And at the most critical moment, he actually met a master whose internal strength had reached the realm of returning to the basics, how could he not be excited and happy?

When Ou Zi smiled and explained the reason to Wu Ming, Wu Ming was very excited, this seemed to be tailor-made for him, before he thought about refining two Longquan swords, but now if he participated in the refining of this nameless and peerless, the meaning would naturally be different.

As for whether Euro Zi will hand over the two swords of Nameless and Wushuang to himself, Wu Ming is not worried at all.

Of course, although Wu Ming's internal force has reached the level of returning to the basics, there needs to be a process of improvement in the level of sharpening the blade with internal force, otherwise a small mistake will fall short.

At this point, not only did the euro not dare to be sloppy, but Wu Ming did not dare to try it lightly.

So in the next few days, Ou Zi began to cast swords, and it was a large number of swords, the purpose was naturally to let Wu Ming have enough swords to practice sharpening the blade with internal force.

From the preparation of the model to the dispensing and then how to smelt and pour and even the final processing, Euro Zi was carefully explained to Wu Ming while actually operating, and Wu Ming was also allowed to participate in it many times during the period.

As for the last cutting process, that is Wu Ming's business alone.

Some things may seem simple, but they may not be easy to do.

For example, this is the case with the use of internal force to open the blade.

When the internal force is used, the blade is curled. The internal force is small, but the blade is blunt.

Therefore, what kind of material, what kind of thickness, and how much force should be used, that needs to be experienced.

Fortunately, Wu Ming is different from others, not only has his internal strength reached the realm of returning to the basics, but he also has the ability to look inward.

In the process of practicing, he was surprised to find that the kung fu that was originally used for human internal vision could also be used on the sword.

Due to the different materials of the sword, the sword body has different veins, just like the meridians of the human body, and the internal force in his body can change the internal structure of the sword through these veins, not just the blade.

In addition, Wu Ming also discovered that the yang and yin in his body could be injected into the inside of the sword, thus forming a difference between hot and cold in the sword body, achieving a purpose that greatly changed the power of the sword.

This kind of discovery made Wu Ming ecstatic in his heart, but he didn't tell him about the ability to look inward, not that he didn't believe in the other party, but he just felt that it was unnecessary, after all, this inward vision is not a skill that others can learn, and saying it is just to increase the envy of others, and it is useless.

For Wu Ming to master the internal force blade so quickly, Ou Zi couldn't believe it, and praised Wu Ming again and again for being a genius in sword casting, in fact, for other processes, Wu Ming learned as usual very quickly, but he was completely worthy of this praise.

When learning sword casting in this scenic valley, Wu Ming sent the Six Immortals of Peach Valley out, asking them to go back to Meizhuang first, and then rush to Hengshan again, one was worried that Ren Yingying would find him, and the other was of course a little worried about the Hengshan faction.

The butterfly effect is never a simple calculation, the chain effect brought about by this change is impossible for anyone to predict, Wu Ming actually doesn't know if they will encounter danger after saving Hengshan Sanding, and the future direction of the Hengshan faction is even more unpredictable.

As for Qu Feiyan, she naturally stayed in the valley, she was not interested in swordsmanship, but she was obsessed with Ouzi's Longquan swordsmanship.

Qu Feiyan is a little girl who is loved by everyone, and with the relationship between Wu Ming, Ou Zi naturally will not cherish herself with a broom, and passed on this original Longquan swordsmanship to her.

Wu Ming understands that although the Longquan swordsmanship is not as good as the Dugu Nine Swords, but for most people who use swords, the Longquan swordsmanship is easier to get started, and it is extremely powerful, if it is two newcomers who also practice swords, I am afraid that in the first ten years, the strength of the people who learn the Longquan swordsmanship is far better than that of those who learn the Dugu Nine Swords, and in the later stage, it is naturally the people who learn the Dugu Nine Swords.

In addition, Longquan swordsmanship has the shadow of Dugu Nine Swords, among which the sword out of the nameless and the world's unequaled two moves are no tricks to win.

Learning the Longquan Sword Technique is also of great benefit to controlling the Dugu Nine Swords, and Wu Ming naturally will not object.

So the master and apprentice practiced swords and cast swords by the lake, which looked like they complemented each other, so that the old man on the side was secretly comforted.

After seven days of practice, Wu Ming has successfully sharpened more than 30 Longquan swords, none of them failed, and the sharpness of each sword is beyond Ou Zi's imagination.

Euro Zi deeply understands that even if he does it himself, he will never be able to achieve this kind of process.

Ou Zi sighed secretly in his heart, it seems that this is God's mercy, let him meet Wu Ming at the most critical moment, otherwise the two swords of Nameless and Wushuang will most likely fall short, and become the kind of Qingshan that looks sharp, but cannot be compared with a sword like Long Yuan.

Ou Zi said: "Ming'er, your cutting skills have been perfected, you don't need to practice anymore, tomorrow you will start cutting the blade for Nameless and Wushuang." ”

Wu Ming hadn't seen the two swords that had not yet been opened, and now that he heard that they would be officially opened tomorrow, he was naturally very excited in his heart, and immediately nodded to indicate that he had no objection.

The next day was a fine day, with clear skies and cloudless skies, as if a good omen.

Wu Ming and Ou Zi started to act early in the morning, although Qu Feiyan was not interested in forging swords, but he was full of curiosity about the two swords, Nameless and Wushuang, so he always followed.

Ou Zi first took Wu Ming and Qu Feiyan to get the sword.

The two swords were not placed in the air, but sealed in the cave, and the reason for this was naturally because they were afraid that if they were placed for a long time, the sword that had not yet opened would lose its spirituality.

Wu Ming is a modern person, and knows that if metal is left in the air for a long time, an oxide layer will form, which will affect the quality of the sword, especially this kind of work that has been cast but is not finished, especially needs to be protected.

When Ou Zi took out the two swords of Nameless and Wushuang from the sealed cave, Wu Ming couldn't help but let out a heartfelt admiration, whether it was Nameless or Wushuang, the structure of the sword body had reached a very perfect state.

This also shows how much Euro Zi expects these two swords, otherwise he would not use the last two moves of Longquan Sword Technique to correspond to them.

For Wu Ming and Qu Feiyan's admiration, Euro Zi's face was also very happy and proud.

With two swords in hand, the three of them returned to the lake.

Ou Zi said: "Ming'er, these two swords are the most proud works of my life, and the final blade is up to you." ”

Wu Ming said solemnly: "Ou Lao, rest assured, I will definitely let these two swords reach the most perfect state." ”

Euro Zi smiled: "I believe in you!" ”

But Qu Feiyan said, "Come on, Master, you are the best." These modern languages are naturally influenced by Wu Ming.

Wu Ming felt very kind when he heard it at this moment, and he couldn't help but stretch out his fingers and make a V-shaped posture representing success.

Seeing the happiness of the young master and apprentice, Euro Zi couldn't help but smile on his face.

Wu Ming picked up the "Nameless" first, compared to Wushuang, the Nameless Sword was dark and heavy.

Wu Ming silently used Chunyang Snow Melting Gong, and as the internal force slowly integrated into the sword body, he quickly resonated with the "nameless", and could look inside the structure of the sword body.

The density of "Nameless" is extremely high, and the veins are slender and tiny, Wu Ming guessed that there should be a lot of dark iron in it, otherwise it would not be so heavy.

After looking inward, Wu Ming began to sharpen his blade, which is a job that requires patience.

After starting, Wu Ming found that this nameless sword was more difficult to open than ordinary swords, I don't know how many times.

If the internal force is not enough, with this method, it will only destroy the heavens, and the blade will end in failure.

Fortunately, Wu Ming's internal strength has reached an extremely high level of returning to the basics, and at this time, his advantages over his superior internal force are fully revealed.

With the continuous improvement of internal force, the cutting edge gradually begins to become sharp.

At the same time, Wu Ming did not forget to pour a part of the veins of the sword body into the sword body.

As time passed, the originally somewhat swarthy "Nameless" gradually emitted a golden light, which made the euro on the side unbelievable, while Qu Feiyan's eyes showed a look of excitement and joy.