After Shangguan Yi adapted to the environment, he thought that the biggest problem in the casting process had been solved, but he found that he was still too young. When Master Tang said that his piece of snow cold silver was only a preliminary refining, he should have discovered the seriousness of the problem, obviously that piece of snow cold silver was already the maximum amount he could refine at that time, but in Master Tang's mouth, it was only preliminary, and the mad blacksmith had also warned Shangguan Yi to let him be mentally prepared, but he was not afraid of death and said that it was not a big problem......

The refining of materials, in the general casting process, is completed by the foundry, because only they can achieve the ultimate refining and processing of the metal, change the properties of the metal itself, and adapt to the needs of the casting purpose, this step has actually determined the upper and lower limits of the subsequent manufactured things. If the quality of the material is good enough, the upper and lower limits of the product will be raised, and of course, the main thing is to raise the upper limit.

The so-called master is a person who can turn decay into magic, it doesn't matter how low the lower limit is, what matters is how the upper limit is, for example, Master Tang, he pursues good ore not because this can improve his casting level, but because he can let go of the restrictions on him. Even if he casually gave Master Tang a piece of iron, he could make a good thing, but what about the Divine Iron, there is no doubt that it would be even more powerful in Master Tang's hands. Master Tang's pursuit is to use the best materials to forge the best things, including casting a sword for Shangguan Yi this time, and he even wants to combine the casting methods of the mad blacksmith to refine the materials to the limit, and this is what the mad blacksmith wants to do. Good steel is used on a good blade, a good saddle is used on a good horse, and it is his purpose to forge a sword worthy of this kid.

Therefore, these two people will not pity the fragrance and jade at all, but will only cruelly teach Shangguan Yi different ways of refining and refining metals, not only letting him use "Piety" to change the properties of metals, but also telling him more different ways to operate on metals. Although these methods really opened Shangguan Yi's eyes and amazed, the hard work is also really hard.

Each piece of metal is different, although the step of "Piety" is fixed, but the rest of the steps are different, this is the method tailored by Master Tang and the mad blacksmith for the understanding of different metals, because the two of them will know too much, so they have a choice, according to the needs of metal and Shangguan Yi, some attributes of metal can be eliminated, and another part of the attributes can be retained.

Choosing the best is the purpose of this refinement.

The metal prepared by Shangguan Yi was quite sufficient, after all, he certainly didn't have a master plan for sword casting, but the crazy blacksmith helped him plan it, and by the way, he added enough materials, so they could waste some. This led to Shangguan Yi refining hundreds of catties of ore, and then transforming the metal after obtaining it, refining the part that was needed, and then using "Piety" to integrate his sword intent again, compressing the volume and increasing the density.

This process is naturally quite difficult, because the upper limit that Shangguan Yi can create is higher than that of Master Tang, although he doesn't know the technique, but the technique can be learned, but the ability to create the upper limit cannot be transferred to Master Tang, because this is determined by the body, that is, strength, and Master Tang is inferior to Shangguan Yi in this brute force, so ...... During the casting process, Master Tang or the crazy blacksmith occasionally took a piece of metal to Shangguan Yi to demonstrate, and then let Shangguan Yi try it himself, and then they gave instructions, thinking that it was almost enough to operate on the corresponding metal.

Is it difficult?

The answer is yes, the technical difficulty is not mentioned first, just to operate, in seven days, Shangguan Yi knocked out five hammers of Master Tang, and various other tools, so that when Shangguan Yi struck iron later, Master Tang and the crazy blacksmith were building tools for Shangguan Yi to use.

In the past seven days, in addition to the necessary energy and water replenishment, Shangguan Yi and the three of them stayed in the casting room, and even slept very little. Among them, the hardest is Shangguan Yi, after all, Master Tang and the mad blacksmith can still change shifts to rest, sleep or something, but he is the most bitter one, basically incarnated into a perpetual motion machine, and the sound of hammers striking iron in the casting room basically did not stop at the moment when the first sound sounded. He also finally understood why the mad blacksmith said that he would be trained to the point of losing a layer of skin, two people to teach, one to supervise, how could it not be hard?

In fact, what Shangguan Yi didn't know was that his performance was also unexpected by the two teachers, and his hard work was made by himself.

The answer is actually very simple, Master Tang and the mad blacksmith are good teachers, but they are not devils, and they will not force people to death. They were testing Shangguan Yi's limit of patience at the beginning, and only after finding out this could they make a plan for the future, after all, people are different, and many people's limits can be estimated as long as they understand it a little, but Shangguan Yi's limit is not such a thing to say, even the crazy blacksmith who touched Shangguan Yi's bones can only guess that this kid should be able to hold out for a long time, but whether this is the case. He can't be sure either, so it depends on Shangguan Yi's performance. That is to say, if on the first or second day, Shangguan Yi showed a little bit of insupport, he would have been more relaxed, but he didn't. He is full of toughness, and he can withstand the hard work better than the two casting veterans, which is embarrassing, isn't it?

Therefore, Shangguan Yi was trained like crazy, so that he not only recovered his peak state, but even became a lot stronger, of course, this refers to the double increase in strength and internal force. Pushing your limits is the best way to become stronger, and that's been proven once again. Originally, he thought that he had reached the strongest state of the current realm, and there was no way to become stronger anymore, so he thought about breaking through the realm. However, now that he has gone through what seems to be hard work but is actually the devil's training, he has undoubtedly broken through his limits again. Of course, this breakthrough may also have something to do with the previous battle of life and death, after all, after the destruction is a new life, in order to survive, he squeezed his body to the limit in that battle, internal force, squeezed to the point that there is no way to squeeze, so it is not unexpected to have a breakthrough after full recovery.

“duang，duang，duang......”

On the seventh day, such a sound echoed in Master Tang's courtyard, and even the entire street could be heard clearly, and at the same time, it was clear how terrifying the power of the iron-striker was, and such an anomaly also represented the last and most critical step in the refining operation.

In the casting room, Shangguan Yi was naked, holding the handle of the hammer with both hands, using the method taught by Master Tang to smash the hammer violently but with rhythm and discipline, and smashed it on the piece of metal that was pitch black, but there were some faint flashes of dark gold or silver-white dots around the body, and Master Tang and the mad blacksmith used tools to help him fix it. Shangguan Yi smashed down with almost all his strength with every hammer, and the muscles of his whole body bulged, not only the strength of his arms, so even the casting table that was fixed and dead on the ground trembled slightly with each hammer, until the light on the metal block dimmed, and Master Tang did not stop.

At this time, the metal block was like a vast universe before, with tiny stars and the sun and moon shining in it, full of vitality to the sun and moon without light, the stars were dim and lifeless, as if they had been scrapped, but Master Tang was very satisfied, and the mad blacksmith was also satisfied.

"Okay, you go and take a break, remember to prepare a drop of essence blood, maybe more than a drop, so have a good rest for a day or two, don't worry, the rest will be left to the two of us." Master Tang moved his wrist, which was a little numb from being shocked by helping Shangguan Yi stabilize the metal block, and assigned a new task to Shangguan Yi: just eat and drink enough and sleep well, and wait for him to be bled out.

Although Shangguan Yi was speechless, he also knew that refining materials was such a thing, for himself who had a foundation and had a good talent, he could quickly complete it under the guidance of the two masters, but the next steps were not like this, what he looked at was experience and technology. There is no experience in Shangguan Yi, as for the technique, although Master Tang and the crazy blacksmith are not self-cherished people, they still can't teach Shangguan Yi at will.

As for the reason, it can only be said that Shangguan Yi is not their apprentice.

Many of the refining methods taught by the two of them are already considered secrets that are not passed on, but these two admire Shangguan Yi very much, so they didn't say anything, and taught Shangguan Yi, but the casting technology belongs to the inheritance of the master, if Shangguan Yi is their apprentice, then he will naturally teach him, but he is not, and he is not even a blacksmith, so it is impossible to teach it. And Shangguan Yi was indeed a little unbearable after seven days of torture, after all, he was not a machine anyway, such a high-intensity work, just looking at the raindrop-like sweat on his body, he knew that he had finally reached the limit, so it was natural to rest.

In the next two days, Shangguan Yi stayed at Master Tang's house very leisurely, occasionally drinking two sips of wine with the drunkard uncle, well, really just two sips, and then drinking it will become mud, and it will be troublesome to take sperm and blood at that time, although Master Tang said that it will take at least three days to cast, but Shangguan Yi still does not dare to be negligent.

As for why you don't dare to be negligent and why you still drink, it has to start with the pot of heroic souls that Master Tang asked Shangguan Yi to open on the eighth day.

Wine is also something that Master Tang uses when casting swords, not only he has to drink, but also the sword, of course, the word drink is not very accurate, in fact, the sword needs to be nourished. Maybe this statement is very strange, but in fact this is one of the secrets of Master Tang, what you want is not wine, but the effect attached to the wine, domineering, softness, etc., and the wine of the Heroic Soul is the best wine cast.

The sword is a killing weapon, the Heroic Soul Grass is produced from the battlefield of the tragic killing, even if it is made into wine, this characteristic is only a little convergent, in fact, it still exists, using it to raise this piece of metal, for the sharpness of the sword after casting, the soul of the sword itself, and the killing intention of the sword will be greatly improved.

Therefore, Shangguan Yi opened the pot of wine, and Master Tang mixed some of the wine paste with other fine wines, and produced the first batch of Heroic Soul Wine that could be drunk, most of which was left in the casting room for him and the mad blacksmith to use, and the rest was distributed to Shangguan Yi and the neighbors on the street of knowledge to taste.

Heroic Soul Wine is for heroes to drink, and most of them are heroes who survived on the battlefield, those people naturally can't like and don't have much strength in wine, so Heroic Soul Wine is a strong wine, a rookie like Shangguan Yi, you can't drink it in two sips, and he is indeed very restrained, even if the Heroic Soul is very beneficial to him, he will not be greedy for a cup, and he is always very sober.

Also sober are the two masters in the casting room, their alcohol consumption is naturally very high, even if the Heroic Soul wine is very strong, they can drink a jar of noodles without changing color, but they clearly know that drinking is only incidental, used to stimulate their own casting enthusiasm, replenish physical strength and water measures, the key thing to do is to forge a sword.

As the two former brothers, they have a very tacit understanding in this collaborative sword casting, because the material is too hard, a person who does not complete much work will consume a lot of physical strength, and need to change shifts to rest, this process can not let the half-finished sword cold there for too long, even if it is enough for a minute, there is a danger of losing all the previous efforts. This requires the two people who change shifts to have a good understanding of the idea of forging swords, reach a consensus, and know how far the casting has come and what to do next...... Master Tang and the mad blacksmith also fought hard for this work, and they did not close their eyes for three days and three nights, and finally on the eleventh day, the sword body was cast, and the two of them completed the task of casting, and they were only one step away from the sword being delivered to Shangguan Yi.

All things have spirits, so is the ore, and the same is true of the sword cast from the ore, Master Tang and the crazy blacksmith completed the casting from the hilt to the sword body, the tip of the sword, and the body of the sword was perfectly built, and the next thing is the thing that requires Shangguan Yi to cooperate: wake up the soul, awaken the spirituality of the sword, let it completely complete the casting, and come to the world.

When Shangguan Yi heard Master Tang's shout and hurriedly entered the casting room, the whole person was a little confused, it was only three or four days, but it seemed to be three or four years later, Master Tang and the mad blacksmith described it as withered, and the vitality felt a lot lower, and they were also much older, and there was a rectangular container in front of them, and a three-foot long sword was lying there quietly, and the pitch-black sword still had some silver and dark gold spots on the body, but it was not abrupt, but gave people a mysterious feeling. In addition to these, there seem to be some unclear lines on the sword, and even if you look carefully, you will feel that it is your own illusion, which is really difficult to detect.

In addition to the sword, there was some unknown liquid in the container, and in addition to the fragrance of the Heroic Soul Wine, there was also a strong smell of blood, but the liquid was clear and transparent, and there was no blood, and I didn't know what it was.

Shangguan Yi looked at this scene seriously, he knew that although the sword was formed, it had not yet become a soul, this sword looked lifeless, there was no spirituality at all, and it was the same as the previous metal block.

"The sword has fallen silent, and the first step of the three steps of awakening the soul is complete. The mad blacksmith opened his mouth, his voice hoarse and tired, only his eyes remained warm.

"Let's inject blood, don't have sperm blood yet, just stain the liquid in the whole container red. "Master Tang's voice is similar to that of a mad blacksmith, and he has reached his limit.

Shangguan Yi nodded, did not hesitate, and directly took the dagger and made a hole in his wrist, letting the blood drip into the container, until all the liquid was dyed red.

Then I noticed that the liquid slowly faded, from blood red to transparent.

"Continue to inject blood, this process will take three times, and after three times, if the liquid returns to transparency again, three drops of essence blood will be removed. The mad blacksmith opened his mouth and pointed and told Shangguan Yi the next process.

Shangguan Yi did so, injected blood again, watched the liquid turn red and then turn back, and repeated. During this process, the rate at which the liquid turns red remains the same, but the rate of fading becomes slower.

Finally, the liquid returned to its original transparency, and Shangguan Yi took out three drops of essence blood in the bottle according to the instructions, each drop was like a small round ball, independent and non-adherent.

Master Tang put his hands into the liquid, held the hilt of the sword, took out the sword and placed it at the intersection of the three fires, calcined the upper half of the sword blade from the sun to the flames, the tip of the sword, and the lower half of the sword blade was quenched from the yin to the soft fire, the tip of the sword, the wood fire of the main life was reconciled in the center, and the sword body was warmed, and then the three drops of blood were dropped into the tip of the three flames, which burst into a blood mist under the action of the flames, enveloping the sword, and gradually being absorbed by the sword.

In this process, the sword also slowly became more spiritual, and the spots on it were slightly shiny, as if the sword was generating spirituality and slowly came to life.