Li Yu really wanted to know what an intermediate energy source is. Low-level energy sources can provide so much energy, so what about the intermediate energy source? In the end, he endured it.

Roger was standing in front of an exhibition stand at this time, and Li Yu walked over: "Sir, President."

Roger nodded to Li Yu kindly, picked up two small bottles from the display rack, handed them to Li Yu, and suddenly a charming color appeared in his eyes, and asked softly: "Are these two bottles of life spring water that you promised you, are you asking for for your relatives?"

"Yes, my parents were worried about me and my younger brother and sister and my hair turned white." Li Yu answered instinctively as Roger looked at him, and then he was scared and sweated in a cold sweat after answering, because he had not considered this answer, but fortunately Roger did not ask him other questions.

Roger nodded with satisfaction: "You are a filial and good kid!"

"You don't have a magic pet yet. Since you have entered the guild treasure house, I'll give you another magic pet. What kind of magic pet you want?"

He was dissatisfied with Roger and actually used tricks to himself. However, after hearing the magic pet, the discomfort disappeared. The magic pet Li Yu knew that reading so many books in the Magic Guild in Sel City these days is not for nothing. Generally, he is not a magician who specializes in summoning magic. A level one to four magician can only have one magic pet, a level five and six magician can have two magicians, a level seven and eight magician can have three magicians, and a level nine magician can have four.

Li Yu was thinking about the advantages and disadvantages of various demon pets, power type? Not good, he is not a violent maniac. The most important thing is that such demon pets are generally very large in size and can be used in the Continent of Gods, but they cannot be taken out when they return to the earth, otherwise it will definitely cause panic; the defensive type, well, this one is similar to the power type, the casting type, and the demon pets on the Continent of Gods are all kinds of strange. I don’t know if there are any types on the earth, but how can I speak? Could it be to ask Roger if there is any one that can be taken out? Obviously not.

Li Yu's eyes lit up: "God, I don't know if there is any magic pet that can deform or invisible."

"The demon pet that transforms invisible? Let me think... there should be..." Roger looked at Li Yu with a strange look. He didn't understand why Li Yu's request was so strange that he wanted to be weird invisible. What's the use of transforming invisible? Generally speaking, such a demon pet does not have too outstanding power and defense. He is a spellcasting magic pet. Magicians generally do not choose such a demon pet as the first demon pet.

However, everyone has their own privacy and hobbies. Roger didn't think much about it. After recalling it, he took a step and walked towards an exhibition stand. Li Yu hurriedly followed.

Roger picked up a crystal and was reluctant to leave it. Finally, he gave it to Li Yu, saying, "This is a race unique to the demon world called Nightmare Demon. I originally thought of making her the third demon pet, but now I don't have the heart to cultivate it. I give it to you. Nightmare Demon is born with powerful mental power and spiritual magic. Their bodies can be weak or solid. They can also learn swordsmanship. With their talent, if they become swordsmen, they will be very scary. I hope you cherish it and become her master if you drop blood on this crystal ball."

The nightmare demon Li Yu knew that, like what Roger said just now, it was a creature in the demon world, and his body could turn into nothingness and invisibility, just in line with Li Yu's wishes. There were only a few people in the continent of Gods who could have nightmare demons as their demon pets. Unexpectedly, Roger was so generous. Li Yu immediately thanked him, took out a knife, cut his fingers, and dripped blood on the crystal ball.

This crystal ball is a sealed crystal, specially used to seal precious magic pets, and has its own magic to recognize the master. If you drip blood, you can make the magic pet recognize the master, which is very convenient.

The blood dripped on it, and Li Yu immediately felt that his consciousness was associated with another consciousness. The other party seemed unwilling to surrender and strongly resisted. If it were an ordinary magic apprentice, it would take some time. However, Li Yu was not an ordinary magic apprentice. He was a real intermediate magician, and his mental power was strengthened. This resistance of consciousness was very powerless to him, and he did not move his spirit at all. If he could not resist, he surrendered. This is the survival rule of the demon world.

As the surrender was over, the signing of the master and servant took effect. The crystal light flashed, and a beautiful beauty in sexy clothes appeared in front of Li Yu. A contract rune appeared between her and Li Yu's eyebrows at the same time, and then slowly faded away.

Li Yu's first reaction when he saw the Nightmare Demon was, "I'm so sexy when I wear so little clothes?"

The second reaction was, "I suffered a loss. This nightmare demon is my own private property. How can I let outsiders see it? And I wear so little clothes. Hurry up and hide. Oh no, facing a strong man like Roger, stealth is useless. Come back to the contract space quickly."

Before the nightmare demon could enjoy the air of freedom, he was recalled by Li Yu to the contract space. It was in the space formed by the contract rune just now. The contract space was her home. Even if she was seriously injured, she could recover when she returned to the contract space. Even if she died, she could still be resurrected in the contract space. Of course, if she was resurrected, Li Yu would have to pay a certain price. It can be said that as long as the master did not die, the demon pet would almost never die, unless the master completely did not want this demon pet. After killing the demon pet, he would use the secret method to erase the contract rune.

Li Yu was happy to get such a good magic pet. He was still very satisfied with the salt making technique that could be exchanged for these. He generously mentioned the salt produced by the simple salt making method. He then thought for a while and said, "In fact, there is a simpler way to make salt, which is to dry sea salt. It's a pity that there are sea people in the sea."

"What's going on with sea salt?" Roger became interested when he heard it. In his opinion, the salt-making technique Li Yu explained was simple enough. Unexpectedly, there was a simpler method: "Let me tell you about the method of sea salt. Although the ocean is the world of the sea clan, it is still okay for us human race to occupy a piece of sea area."

When Li Yu heard that the sea clan was strong, but the human clan was not weak. He occupied a piece of coastal land to dry salt, not the sea. When he went back to find the method of salt making, he also looked for many methods of salt making, and he also understood the method of salt drying, so he explained it to Roger.

Roger was very happy. The method of drying salt was indeed simple. As for the salt ponds mentioned by Li Yu, there was no need to worry about the salt ponds that would not be mixed with mud and sand. Humans had soil magicians, and hardening the ground was better than cement salt ponds. The method of drying salt could allow the Magician Guild to occupy more of the salt industry.

"Okay, you go back and practice well. I'll be optimistic about you."

Li Yu, who had always wanted to see what the intermediate energy source was, after hearing President Roger's words, reluctantly left the treasure house and walked out of the door. He did not forget to look back and take a look, thinking that he would go in again if he had the chance in the future and find the intermediate energy source.

When he returned to the lounge, Hu Fa was waiting for him.

"Li Yu, are you going to stay in the Magic Holy City, or go back to Sel City with me?"

Li Yu thought for a while and said, "Let's go back to Sel City. Although it's good, it always feels too depressing."

Hu Fa laughed and said, "This is naturally. There are too many strong people here, so you will naturally feel depressed. Then let's go and go back to Sel City."

Li Yu looked behind Hu Fa and did not see Mei Laqi. Hu Fa smiled and said, "Melaqi was appointed as the deacon of the General Association's Salt Affairs Office, and is responsible for negotiating the interests of salt making with major forces. I will take over as the president of the Magic Guild of Sel City."

The two returned to Sel City. On the way, Hu Fa told Li Yu that the president of the General Guild and several elders had a good impression of Li Yu, and revealed that the compensation for this time was because his magician level was too low, and the salt making matters had not yet been launched, and the guild had not seen the benefits, so there was not much compensation. After the guild had benefited a lot from the salt making industry, Li Yu's magician level should have better compensation.

After returning to Sel City, Li Yu found that his system roots were already ten thousand meters long, which was ten kilometers. This was a radius. The Magic Guild was in the center of the city, so the roots of this system almost covered the entire Sel City, and countless thought power information and energy were sucked into the system. Now, he no longer wanted to move, and just stretched the roots outside the Magic Guild to suck them hard.

This idea is good, but just a few seconds after the suction power is fully turned on, I found that several powerful mental powers were sweeping over. If the system had not discovered it early and Li Yu had controlled it in time, it would have been discovered by the owner of these powerful mental powers.

In order not to be discovered, Li Yu had to let the system absorb the speed of low-level spiritual energy. Fortunately, although the strength has been greatly weakened, the range is large enough that he can absorb 10,000 points of energy a day without being discovered by others.

Li Yu was so depressed. According to the system, if he was not afraid of being discovered, if he was not afraid of being discovered, he could absorb 500,000 energy a day if he was fully activated just now. This gap was too big, but there was no way. Who made him weak now? An intermediate magician, any expert could destroy him.

Li Yu was about to summon the Nightmare Demon to see him, but Hu Fa came to him again. It turned out that he was also alarmed by the system's full efforts to absorb low-level spiritual energy. He came over and told Li Yu that an unknown master appeared in Sel City, asking him not to run around, so as not to be in danger. Then he hurriedly left and went to work hard. After all, he had just taken over the Magic Guild Branch, and there were many things to be done.

Li Yu understood what was going on, and he also planned to go back and drink the life spring water he got for his parents. But he was a little annoyed that what reason should he use to let his parents drink the life spring water of unknown origin? He was not doubting the authenticity of the life spring water. He had just checked it with the system. The life spring water is indeed a precious treasure with a large amount of vitality and is of great benefit to the body of ordinary people.

After thinking about it for a while, I thought of a not-so-good solution, which is to buy some green beef and go back. The two old appraisers said that after eating this kind of beef, it will have obvious benefits to the body. Although I bought some back last time, the quantity was not large, and there was not much left for the Qin sisters and their party, so I had to buy some more.
Chapter completed!