An ordinary animal skin needs to go through nitrate, tanning and other processes before it can be used to make various leather items. And the corpse material of the Outer Heaven Demon is countless times higher than that of ordinary beasts, and it is even much stronger than the dragon corpse that Ye Zan obtained before. The corpse materials of the Outer Demons contain powerful power, or more accurately, the material qualitative changes brought about by powerful forces.

For example, the epidermis of the Outer Demons is different from the skin structure of human common sense, and it is not the same level of existence at the cellular level. If, purely in terms of energy intensity, maybe every cell in the demon's body outside that day could be compared to a substance like a top-grade spirit stone. It is not easy to process such materials and make the best use of them.

Ye Zan brought the war fortress into the small world, which meant that there was suddenly more digital law phase level "labor". However, these "laborers" in the small world can really only do labor. After all, in Ye Zan's place, whether it is handling or using those materials, the most important means used is the cultivator's refining method.

Of course, this does not mean that those "laborers" in the small world are useless. Even though, Ye Zan has a large number of engineering robots, which can complete some ordinary engineering tasks very well. But there are also some things that require a certain amount of strength to be competent. After all, robots are just robots, and except for that kind of Genshin mechanical warrior, other robots are just stronger than ordinary people.

In other words, the main ones who really deal with those materials are Ye Zan and Ye Ping'an. As for the heroes of those small worlds, it's not that they can't help at all, but they just do some initial preparations. For example, cutting and polishing materials, or under the guidance of Ye Zan and Ye Ping'an, using some drugs to soak a certain type of material, etc.

"The back skin of the Outer Demon is the most suitable choice for fortress armor. Previously, in the Great Wilderness Realm, with the help of the two supremes of the Divine Machine and the Dao Yuan, it had already been preliminarily cut, but that was only for further processing. Now, I need you, using the tools I provided, to cut them into shapes like this. "Yezan gathered the indigenous heroes and set out on a specific mission.

And not far from Ye Zan, a clearing was already piled up like a hill, and it was impossible to tell whether it was leather or something else. That is the skin on the back of the Outer Heaven Demon, which has been preliminarily cut and decomposed by the two Supremes, and now it is stacked there layer by layer. Of course, the skin must be very different from the skin in people's common sense, and the pieces are like cut jade slabs. Come to think of it, if you don't make armor, it's also very good to use it to pave the ground.

With the huge body of the Outer Heaven Demon, just the back skin that Ye Zan said, it was enough to meet the armor needs of the entire war fortress. Moreover, with the thickness of that skin, it is actually enough to peel off a thin layer when making armor.

"It's easy, leave it to us!" the Sun King and other native heroes immediately responded. They may have some bitterness in their hearts about doing such coolies, but no one is ignorant of current affairs. After all, part of them were counting on Ye Zan to "recharge", and the other part was waiting for Ye Zan to take them out.

After taking over Ye Zan's mission, those indigenous heroes immediately got busy, and they all turned into workers on the construction site. They urged the strength of their bodies to move pieces of leather material to the open space and cut them into shapes of the same size according to Ye Zan's request.

On the other side, Ye Zan had already set up a base on the ground for processing materials. This "processing" does not refer to simple cutting and grinding, but refers to the further refining process. Ye Ping An is in this base, putting the materials transported by the robot into the pool or furnace one by one, and constantly playing out one trick after another.

"Night senior, the handling of those leathers, please leave it to you. Ye Zan came to the base and said to Ye Ping, who had just received the first batch of leather.

"Don't worry, the old man won't delay your business!" said Ye Ping'an, although his hands were busy, but his mouth was lazy in response.

Ye Zan smiled and shook his head, of course it was impossible to deal with the other party's attitude, anyway, as long as he could do things well in the end. He turned around and walked to the other side of the base, where the huge hill-like head of the Extraterrestrial Demon was placed.

Speaking of which, although the head of this Outer Heaven Demon is much smaller than the torso, its value is not much worse. Even, in terms of the power it contains, and the variety of its uses, the value of this skull is even better than the rest of the world.

Ye Zan stood in front of the head of the Outer Heaven Demon, although he had already known the appearance of the Outer Heaven Demon through memory information, he still felt novel and shocked at this time.

This demon outside the sky, I don't know if it's because it has integrated too much blood, or because it looks like this, anyway, judging from the appearance of the head, it is very different from the "human race".

First of all, there is no human hair on the head of this extraterrestrial demon. It may also be the reason why he has been dead for too long, the head looks wrinkled, numb, and not rounded at all. In addition, on the "forehead" of the skull, there are two horns that curve diagonally downward, just like the horns of an argali. After Ye Zan tested the horn, he realized that it was not only a horn, but also had some characteristics of tentacles.

Besides, the "five senses" of the demon outside the sky are of course different from those of humans, for example, it does not have the nose organ on its face, and it does not even have holes like nostrils. Ye Zan knew from the memory information that the olfactory organs of the demons outside that day were actually the two tentacles on the forehead. There are three pairs of eyes of the demons outside the sky, two pairs on the front "face" and one pair on the back of the head.

The Outer Demons don't have ears either, and where they "should" be their ears, there are two clouds of dark red fluff that they use, and they do use this to collect sounds. Those two fluffy organs, if they shrunk many times, are like the kind of wigs worn by balding people. Moreover, despite the huge size of the Outer Demons, the volume of those two fluffy organs is also very large, but the fluff is as soft and slender as human hair.

Finally, there is the mouth of the demon outside the sky, which is relatively not as peculiar as other organs, but it is also different from the mouth of a human. The mouth of the Outer Heaven Demon is more like a huge wolf's mouth, and it also has wolf-like fangs, which looks ugly and vicious.

The reason why the head of the demon outside the sky is more valuable is that there are many "attachments" on it. For example, those six eyeballs contain the unique power of the demons outside the sky, and each one is enough to be called a treasure. And the teeth of that mouthful, as the hardest part of the body, are of course the superior materials used to refine weapons or magic weapons.

And more important, or even more precious, is the brain inside the skull of the demon outside the sky.

Although, Ye Zan has already used the heart core of the demon outside the sky to receive both the small world and the netherworld into the heart core. However, this does not mean that the brains of the Outer Demons are useless, but can be used for other purposes. As for what this brain can be used for, whether it is alchemy or treasure refining, or what other uses, Ye Zan has not yet thought about it.

Finally, the entire skull of the demon skull outside the heavens. As long as the things on it are removed, the last pure skull, even if it is not processed in any way, is enough to make an impregnable fortress. However, Ye Zan did not plan to put the skull on the war fortress as a house to live in. His plan was to use that skull as a material to build a powerful warship.

Of course, the matter of the battleship is not what Ye Zan is going to do now, it is just a plan that is still perfect. At the Brain Host of the War Fortress, he has already released this task, allowing the Brain Host to divide the computing power for calculation simulation. Quite a bit, in the later stages of the transformation of the war fortress, he should have the energy to complete this plan.

Ye Zan turned to the side, where a batch of cut bones was piled up, and more bones were still on the processing field outside, waiting for the Sun King to cut them. His current batch was just when he separated the corpses of the Outer Heaven Demons with the Dao Yuan Supreme, and he deliberately asked the other party to help further deal with them. He also needs to do some experimentation to detect and process these bones to determine where the best use is.

Ye Zan pinched the magic trick and sacrificed the heart core, and the pseudo-law phase was activated in the heart core, so that he had the ability to deal with those bones. However, this time, he didn't have to urge the pseudo-law phase with all his strength, so the pseudo-law phase did not show the appearance of standing up to the sky, but only like a giant more than ten meters high.

Under Ye Zan's control, Fa Xiang reached out and took a piece of bone, rubbing the bone with both palms as if drilling wood to make fire. And under this rubbing, some debris continued to spill out from between the two palms of the Fa Xiang as if it were snowing. Of course, Ye Zan did not crush the amputated bones, but eliminated some impurities from the bones through the power of the law phase.

This "impurity" is partly something that is really useless, and partly refers to substances other than bones. Although, the Heavenly Outer Demon was an existence comparable to the True Immortal level, it was impossible to truly be free of a trace of impurities on his body. Therefore, whether it is the bones or the skin cut by the Sun King, there are actually impurities in them.

After such a simple process, after the movement of the Faxiang stopped, what appeared on the open palm was a very pure bone. This bone, the overall texture, is like a mixture of gold and jade, which looks oily and crystal at the same time, but also exudes a faint golden light. In terms of shape, due to the position of the cut, this skeleton is somewhat like the kind of large cement round pipe that lays sewers.

Although Ye Zan was on the ground, he didn't have to fly to see it, just through the information transmitted by the Faxiang, it was equivalent to seeing everything about the bones with his own eyes. Moreover, under the insight of his True Knowledge, he could even see the deeper layers of the bones, such as the state of the bone cells.

"It's really worthy of being a true immortal-level existence!"

After seeing the situation of the skeleton, Ye Zan couldn't help but say with emotion. In his observation, the bone cells of the bone, each cell contained the power of the law, and at the same time, they were connected together to form a structure similar to a rune. This makes the bones of the Extraterrestrial Demons, in addition to having indestructible characteristics, also have the ability to be similar to automatic repair.

In this way, those that are conducive to processing can be processed into various materials according to needs. Those that are not conducive to processing, or fragments and debris, can be used as inferior materials by crushing and pressing. ”

In Ye Zan's heart, for these bones of the Outer Heaven Demon, he soon had a specific way to use them. Of course, this method of use is only for the purpose of renovating the fortress, and it is not the sole or all use of bones. For cultivators, this bone is also a good refining material, which can be used to refine a very good magic weapon.

The renovation project of the war fortress, with the cooperation of Ye Zan and Ye Ping'an, as well as the heroes of the small world such as the Sun King, began to proceed in an orderly manner. This project cannot be completed overnight, even if there are so many Faxiang-level powerhouses involved, it will also take a lot of time.

During the renovation of the war fortress, Ye Zan was not buried in the small world, and occasionally took turns with Ye Ping to go out to take a breath and learn about the situation in the Shenhua realm. Even the Sun King and others were not purely coolies, but also learned how to fly in the sky during this period, as well as to understand the various "customs and customs" of the Shenhua Domain.

As for the small world, Ye Zan moved the set of the small world of the Asgard Palace to the secular of this small world, except for the Yuqing Dao Palace.

As a result, the Supreme Council stepped in, and the construction of networks in the small world began, the construction of rail transit, and even universal education began. Although, this small world originated from the demons outside the sky, no matter how this small world developed, Ye Zan would not get merit. But he still put a lot of thought into improving this small world from all aspects, from the system to people's lives.

It can be said that Ye Zan really regards this small world as his own world. As the master of the world, although he cannot gain merit from the small world, he can obtain other benefits through the development of the small world. For example, the essence of his spiritual power that was separated from the Netherworld also accelerated the speed of recovery after the development of the small world became more and more prosperous.

In addition, those "heroes" in the small world are not only at the level of the law phase, but also have various levels below. And those "heroes" naturally have a certain value for Ye Zan, the world master.