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"Anyone who has taken my class knows that my class is held for seven consecutive days at a time, and as for when the next seven days will start, wait for the notice. If you have an opinion about this schedule, it is still too late to withdraw and choose another teacher's class. If no one wants to quit, start the class now. Vivien sat on the raised stool on the podium with a serious face, and leaned on the side of the podium with a staff that never left her body: "This year I am talking about the cutting and synthesis of spars, according to the custom, there is a three-minute question time before starting the lecture, and whoever has a question will ask it now." ”

"Vivian, I have a problem. A fat boy dressed plainly and with pimples on his face was the first to stand up: "May I ask the teacher, why didn't your bodyguard sister come today?"

"What do you want to do?" Vivian lowered her head, raised her eyelids and glared at the little fat man with a cold gaze: "I really disappointed you, I changed people today, it's a man." ”

"Oh, Hubert is up there. The little fat man clutched his hands to his chest and screamed, and collapsed weakly in his chair: "Who will save my broken heart?" ”

"Don't worry, I remember you, Kuba. Vivien pointed to the little fat man, "We'll see you when we take the exam." ”

"Teacher, I was wrong, please forgive me. The little fat man put his forehead on the table and kowtowed: "Please forgive me." ”

"Report to the teacher, I also have a problem. A girl dressed in cool and heavy makeup stood up second: "May I ask Teacher Vivian, your new male bodyguard ......"

"You don't need to know him. Vivien interrupted with a headache wave.

"No, no, no, I didn't want to get to know him, teacher. The girl waved her hands and strengthened her tone and said, "I want to know, the male bodyguard you are talking about, is it the obscene uncle outside the window who rubs his saliva against the window and stares at every girl's thigh with squinting eyes?"

"Hehe, hehe, hehe. The corners of Vivien's mouth twitched, her neck twisted little by little in the direction of the girl's fingers, and the staff was already copied in her hand at some point, pointing out the window: "Dear Mr. Pannis, will you come in by yourself and sit in the last row obediently and wait, or shall I help you fall down from the sixth floor and enjoy the joy of flying?"

Pannith swooped open the window and rushed in, sitting in the last row of vacant seats, staring straight ahead as if nothing had happened.

"Since there are no other serious questions, I will start lecturing. Vivian cleared her throat and said, "I won't talk about the most basic things, such as what a spar is and how to use it, if you don't even know this, then please go back to the beginner class and retake it." ”

"Let's get straight to the point, let's be clear, the discipline of spar cutting and synthesis is a high-risk discipline, whether it is property risk or life risk, it is terrifyingly high. Spar cutting mainly carries property risks, while spar synthesis mainly bears life risks. Therefore, if you are going to take the Crystal Energy School as your major, you must be clear, clear, and clear about this point. ”

"As the name suggests, this discipline includes two aspects: spar cutting and spar synthesis. If you want to learn these two aspects, you must understand the secrets inside the hedron. To put it simply, the inside of the spar is an unstable energy system, the higher the energy contained in it, the stronger the instability, so the more high-energy the spar, the more likely it is to have the phenomenon of energy escape, and the escape is irreversible. If you have a 20,000 spar, then first of all, congratulations, you have a fortune of more than 80,000 gold coins. But maybe it's just a slight knock, or maybe even a simple rise in room temperature, and your 80,000 gold coins can disappear completely. ”

"Some of my classmates noticed that I mentioned the hedron of 20,000 tels. Why does it have to be 20,000, not 30,000? Because the threshold of energy escape of naturally formed spars is 20,000, and once the internal energy of natural spars is formed exceeds 20,000, it will escape immediately, without exception. Therefore, all spars with more than 20,000 terres are man-made, and the method of manufacturing them is the hedron synthesis that will be discussed below. ”

"Who's going to tell me what to do if I want to craft a 40,000 Terr hedr?" Vivien glanced at the listening students.

"Crafted from two 20,000 thair hedrons. A student who was quick to respond answered immediately.

"Okay. Vivien pointed to the student who answered, "I used to play with blocks when I was a kid." Now if you are given 40,000 blocks to build a castle, do you divide them into two groups, each of which is the upper and lower parts of a group of 20,000 pieces, and then stack them up, or is it easier to build them up little by little?"

The student who answered lowered his head and stopped talking.

In fact, your answer is theoretically correct, because the hedron is synthesized, every time it is synthesized, no matter how many terras the hedral is added, even if there is only one terr, it will also cause the stability of the target spar to be greatly reduced, so the higher the natural selection energy of the hedron when synthesizing, the better. However, the higher the energy, the more unstable it is, just like the building blocks mentioned above, it will be more difficult to craft into the target spar, so the energy selection of adding the spar is a very delicate problem. This is a matter of life and death, because if the hedron fails when synthesizing, it is not the consequence of the loss of two spars due to energy dissipation, once it fails, it will inevitably explode, and the power is very powerful, if the spar explodes more than 20,000 terres, the gold-level mage will die, and if it exceeds 40,000 terres, even the legendary-level mage will definitely die. The only synthesizer in history, the legendary mage Tania, who had the only 60,000 Terr spar, was killed when she was further synthesized, and before she was killed, she had said that the time she synthesized to 60,000 Ters was completely a matter of luck. ”

"What about the demigods?" The quick-witted student heard the loophole in Vivian's words: "Listen to what you mean, teacher, such an explosive demigod can withstand it, so why didn't the demigod synthesize a second hedron of 60,000 terres?"

"Ha, more than seventy years ago, there was once a human demigod who was obsessed with hedron synthesis, and tried to synthesize a hedron of 60,000 terrs four times, but failed at the last step. Vivien shook her head and sighed.

"And then?"

"Bankrupt, with a debt of more than 40 million gold coins, he had to go on an expedition in order to repay his debts, and finally died in the depths of the jungle of death. Vivien shrugged her shoulders and said casually, "So, even if you are hard enough to have a hard life, it is useless if you don't have enough money. ”

"The topic is far away, and let's continue to talk about the best amount of capacity to choose for adding spars. Vivien said, "Based on thousands of years of experience, people generally choose five thousand territes of hedron as an additive hedron. ”

"Hey, hey. Pannis, who had been straight, was already lying on the table and drowsy, and when he heard someone in his ear talking to him half-asleep: "Your name is Pannis?"

Pannis reluctantly opened his eyes, glanced at a male student sitting next to him, and nodded, "yes, what's the problem?"

"You also live with Teacher Vivien and that priest's sister?" the male student asked with great interest, "I heard that they all live together." ”

"Well, sort of. Pannis nodded.

The male student showed a leisurely expression on his face: "I really envy you." ”

"Oh?" Pannis became interested and winked at the male student, "It seems that you are very abnormal in your longing for that priest's sister, hehe." ”

"It's not normal. The male student retorted with a flushed face: "Such a beautiful girl, a gentle and weak priest, and such a beautiful silver hair, it is not normal for such a girl not to be desirable." ”

"Gentle and weak, hehe. Pannis squinted at the male student: "You are like this, she can kill twenty people with one hammer, where is she gentle and weak." ”

"Is it true? Are you really living with them?" Hearing the conversation between the two people, a female student on the other side with hair standing on end, wearing a huge silver ring on her ears, and wearing heavy black eyeshadow couldn't sit still, and leaned over and whispered, "Then you also know that knight sister?"

"What are you?" Pennis grinned, "You're a girl, aren't you?" ”

"What's wrong with girls? Don't you discriminate against women, okay?" The female student glared and said, "The pursuit of beauty is not divided between men and women, especially the combination of handsomeness and beauty like the knight's eldest sister, which is really unforgettable." ”

"Okay, okay, you win. Panismo rubbed his arm and said, "I don't discriminate, I'm just a little cold." ”

"That. The male student reached out and poked Pannis: "Can you tell me the name of the pastor's sister?" ”

"Yes, yes. The female student licked her lips: "And the name of the eldest sister of the knight, also tell me, it's best to have a personality and hobbies or something." ”

"You ......," Pannis said, frowning, "and you want these?"

"Don't be so serious. The female student winked at Pannis: "We can make a deal." ”

"Deal. Pannis suddenly stretched out his hand and secretly pointed at several female students in the classroom: "See, this, this, this, and that, those beauties, you give me their names, ages, addresses, preferences, and I will tell you." If I can go into more detail, hehehehehe, I still have a blank engram there, you know, hehehehehe. ”

"Hey, hey, hey. The three of them looked together and let out a lewd laugh at the same time.

"Whew. A huge wind sounded, and as soon as the three of them looked up, a huge fireball smashed into their faces, accompanied by Vivien's angry shout: "Pannis, you get out of here." ”

Pannis chuckled, and the next moment it was already coming out of the window, and the voice came from the window at the same time as the body fell: "I'm waiting for you at the door of the building to get out of class." ”

The only remaining two students, a man and a woman, were smashed by a special fireball, and although they were not injured, they were gray and black.

"You two. Vivien pointed at the two unlucky victims and said angrily, "You have deducted 10 points for your class grades this year. ”

"Don't. The two screamed complainingly, and the miserable voice made the listener cry: "Teacher, I was wrong, give me another chance, I don't dare anymore." ”