That flame was absolutely bizarre. This was what formed Restriction. The core of it was Heavenly Flame. Back in the Mingze Alliance, he had obtained quite a few Heavenly Flames and kept them in his possession. This was an excellent material for the Lei Xingfeng Hub. He didn’t dare to waste it.

A faint fragrance of meat spread out, and Xing Feng couldn’t help but say, “Damn, smelling this smell, I’m really hungry.”

Lei Xingfeng controlled Restriction and said, “Wait a moment. After cooking up the meat of the Golden Star Beast, I’ll get something to eat.” After saying that, he continued to control the flames and burn the Star Beast’s meat. Soon, the smell of burning spread.

Afterwards, he saw wisps of black smoke rising up, and gradually, the smell disappeared.

Xing Feng said, “This fire can be controlled too well. It is simply much stronger than a fire element cultivator!” He was a knowledgeable person, so of course he could tell that this fire was different from the others.

After about two hours, Lei Xingfeng quickly extinguished the flames and removed Restriction. He carefully put away the Heavenly Flame, which was the hub of Restriction. Only then did he peel off the skin of the Golden Star Beast and see a pile of crimson crystals.

Xing Feng jumped up and also came to the side of the Golden Star Beast. This originally plump Star Beast only had its skin and bones left. There were also its long meridians and red crystals scattered inside.

Each of these crimson crystals was the size of an egg. Xing Feng grabbed one and said in surprise, “Eh, Blood Essence Crystals? They really are Blood Essence Crystals. How did you do it?”

Lei Xingfeng said, “Control the fire and remove the impurities. Naturally, what remains is the essence.”

Xing Feng said, “This is a good thing. It can replenish the seal and true body. Half of the family!”

Lei Xingfeng nodded and replied, “You still have a Golden Star Beast with you. Do you want to do this again?”

Xing Feng smiled and said, “Of course, this is necessary. I didn’t expect that there would be such benefits. The blood essence of a Star Beast is the most difficult to purify. I didn’t expect that you can do this. You can directly strengthen your true body. If you trade this thing, you can exchange it for quite a few good things.”

A single Golden Star Beast had contributed tens of thousands of crystals to the Blood Essence Crystal. Xing Feng did not take the crystals refined by Lei Xingfeng, but released the Golden Star Beast to allow Lei Xingfeng to refine them again.

Lei Xingfeng didn’t decline and rearranged the Restriction. To tell the truth, although he wasn’t too happy, this unexpected harvest still made him very happy.

After burning Xing Feng’s Golden Star Beast, he obtained a large amount of Blood Essence Crystals. Both of them were very happy. Xing Feng also expressed that he would give Lei Xingfeng a few more chances in the future. In other words, Lei Xingfeng wanted to refine the sword imprint, so he no longer controlled the time.

The two of them kept their Blood Essence Crystals. Xing Feng also kept the remaining Golden Star Beast skins and skeletons and continued to watch how Lei Xingfeng refined them.

Lei Xingfeng cleared a large clearing, After that, he placed the Golden Star Beast’s skin aside, its bones aside, and its muscles and veins aside. Then, he refined and laid out Restriction and the Golden Star Beast’s entire skeleton. There were a total of more than 900 pieces, excluding some useless small bones and some unimportant bones. There were about 600 pieces left.

Every bone was engraved with Restriction and repaired with lightning-type materials. After all, Golden Star Beasts were not lightning-type Star Beasts. Since they wanted lightning-type sword marks, lightning-type materials were indispensable.

All kinds of lightning-type materials were consumed like flowing water. Just the connection between the bones, Restriction, had already spent quite a bit of good materials from Lei Xingfeng. Of course, Lei Xingfeng would not feel heartache. Materials were good things, and no need to use them was just decoration. That was why he kept taking out all kinds of materials and refining them.

The purpose of contacting the bones was to maintain the Golden Star Beast’s originally robust internal structure. As for the lightning element materials, the lightning element Restriction was the weapon that Lei Xingfeng used to attack. Of course, it had to be the most familiar, powerful, and easily controlled Restriction. Therefore, the most basic attacks and the most powerful attacks were all related to the lightning element.

Other Restriction, Lei Xingfeng had not considered it for the time being, but sooner or later, they would also be placed in the sword imprint. Currently, they were only laying the foundation for the lightning type sword imprint. For the time being, they could not consider that much, so they could just leave enough space.

On the whole, Lei Xingfeng had set up a body-sized Thunder Killing Array. This Thunder Killing Array had been thoroughly modified. It had abandoned many useless thunder killing arrays and used many Lei Xingfeng techniques that had been tested by Restriction.

The Thunder Kill Formation was only the most basic Restriction Kill Formation in the sword imprint. At this time, it had to be set up. In the future, Lei Xingfeng would upgrade to a serial Thunder Kill Formation. Apart from Thunder Kill, he would also put some Restriction Kill Formations of other attributes into it. For example, the Fire Kill Formation, the Ice Kill Formation. However, it could not be activated at the same time.

Every bone had to be refined. Fortunately, the Golden Star Beast’s essence was excellent, and it was an adult Star Beast. There were relatively few impurities in its bones. After being tempered by lightning, every bone was sparkling and translucent. Just setting up Restriction and refining its bones had taken more than 40 days.

Fortunately, after Xing Feng obtained the blood essence of the Golden Star Beast this time, he did not urge Lei Xingfeng to leave. He sat quietly by the side and watched with a thoughtful expression.

Actually, Xing Feng’s heart had already stirred up a storm. Only now did he understand that a Restriction division could actually forge their own weapons like this. He couldn’t help but sigh secretly. He actually didn’t work hard on Restriction. If he was proficient in Restriction, he wouldn’t have been trapped to death. If he had Restriction, his strength would probably have increased by a large margin. He kept saying in his heart, “What a pity.”

As Lei Xingfeng refined, Xing Feng gradually came to a realization. He kept asking questions about the situation. For example, he asked what Restriction was placed on his bones. When he learned that it was Thunder, Fire, Ice series, Metal, and even Illusory Restriction, he was extremely shocked. He knew that this thing was already very frightening just by relying on Restriction’s strength.

Lei Xingfeng knew that time was running out, so the first step was to create the prototype of the sword imprint. This was the most basic and time-consuming. As long as the prototype came out, he could grasp the time in the future to refine it.

When the entire sword imprint was formed, which was the initial form, Lei Xingfeng’s sword imprint looked more like a bone zombie. It was completely formed from the bones of the Golden Star Beast, and it could even run on the ground.

Xing Feng was dumbfounded. He was surprised, “This is your sword imprint? Why do I look at it as a skeletal rack?”

Lei Xingfeng said, “This is the frame. If you want to refine a complete sword imprint, this is the first step! The first step!” Although he also admitted that this was a skeleton rack, he was very ignorant of Xing Feng. This skeleton was the skeleton of the sword imprint. After refining it, this skeleton would put on a coat. As for what kind of coat, he had not thought of it himself.

Finally, the Restriction that was placed on the bones was used to store the sword imprints in the Lei Yin. The sword imprints relied on Lei Yin, and if they could not be included in the Lei Yin, they could not be called sword imprints.

Lei Yin was a little worried when he released his Lei Xingfeng. However, he believed that Xing Feng would not attack. After all, the hostility Xing Feng had towards him had almost disappeared along the way. He released Lei Yin without looking at Xing Feng and concentrated on collecting the sword imprint framework.

Xing Feng did not have any thoughts of attacking Lei Xingfeng Lei Yin. He just watched curiously. Seeing Lei Xingfeng release Lei Yin, he secretly nodded. This meant that Lei Xingfeng was not prepared for him.

After more than 40 days of refining, the entire framework of the Sword Seal was completed. Of course, this was only the most basic. It would take a very long time to refine. There was still a lot of work to be done before it could be completed. At present, this step was also very crucial. Only when it was successfully absorbed into Lei Yin could it proceed to the next stage of refining.

Lei Yin hung above the skeleton. Threads of lightning began to brew. After a long time, thunder struck the skeleton. Thunder rumbled non-stop. The blinding lightning emitted dazzling brilliance. It was like a tree that was being produced backwards. The thick lightning quickly branched and struck the skeleton. It was threads of lightning.

Crackling sounds could be heard as the enormous skeleton was tempered by lightning. It emitted a dazzling light. Countless impurities flew into the air, leaving behind only the essence.

A sparkling and translucent skeleton gradually formed, and its volume was gradually shrinking. The skeletal shelf that was originally a hundred meters long gradually shrank to seventy to eighty meters long. Then, in terms of how it was tempered with lightning, it no longer shrank. This was the transformation process of the main body.

Lei Xingfeng stepped up its efforts once again, Lei Yin produces a lot of lightning, Luckily, he had plenty of energy right now, Ever since he learned Professor Xing Feng’s method of purifying crystals, he no longer lacked energy crystals. Last time, he had obtained a lot of crystals. He could be at ease and spend them openly. That’s right, even if he used an energy crystal in the past, he would feel reluctant to part with it. Now, he didn’t care at all. Even if he wasted it, he didn’t feel reluctant to part with it.

By consuming a large amount of energy crystals, it gave Lei Yin enough energy to refine it more thoroughly and purify it more easily.

Lei Xingfeng did not try to lay the foundation for the Restriction, but wholeheartedly began to store the entire skeleton.

The lightning gradually dissipated. The skeleton gradually floated up under Lei Yin’s action. With a cracking sound, the entire skeleton began to compact. Another bolt of lightning appeared. This time, it was not refining, but clearing away the dirt and rubble stuck to the skeleton. The entire skeleton began to shrink rapidly.

It had shrunk from 70 to 80 meters long to only a few meters long. The originally thick skeleton had already become small and exquisite. After shrinking, the entire skeleton actually emitted a golden light.

Xing Feng looked at it with extreme envy. This was simply not a weapon. It was more like a work of art. It was extremely beautiful. Even the skeleton of a Golden Star Beast gave him a sense of threat. This caused Xing Feng to start to change his previous view. The sword imprint might be a very good weapon.

Not to mention Xing Feng’s temptation, Lei Xingfeng was going to enter the final step of accepting Restriction. He had to start accepting Lei Yin and force the skeleton to enter Restriction. This accepting Lei Yin was completely scrapped the previous time. Once it was put into Lei Yin, Lei Yin would completely assimilate the skeleton. In other words, the sword mark would become a part of Restriction. At that time, it didn’t matter if Restriction was accepted or not.