A moment later, all the students of Class 1204 gathered in the cultivation hall, all sitting cross-legged on the ground and looking up at Mu Qinzhi.

Mu Qinzhi saw that everyone had arrived, so he said: "Okay, now let's start the class, today's learning and cultivation content is to understand the purity of Wu Yuan, as well as the preliminary refining of Wu Yuan, and practice how to control your own Wu Yuan attached to the surface of the body." ”

The students in the audience listened carefully, and even some took out notes and recorders to record, only Li Qishen was unguarded and stunned.

"Hey, what do you want?" said Luo Yijiao's voice in his head.

"Oh, nothing. Li Qi came back to his senses and replied in his heart.

"Think of that woman just now, you were so upset just now, what happened to you two before?" Roy asked.

"Nothing, nothing. Li Qi hurriedly denied it.

He didn't dare to hit someone else's chest, no, it should be told about the attack on the police to Senior Sister Roy, who is extremely disgusted and sensitive to this kind of thing, and he will not be despised to death by her.

Li Qi was silent, and his eyes fell on Mu Qinzhi, who was lecturing.

"The power of Wu Yuan depends on three aspects, one is the nature of Wu Yuan, the second is the total amount of Wu Yuan, and the third is the purity of Wu Yuan, the nature of Wu Yuan is linked to the level of cultivation, the higher the cultivation, the nature of Wu Yuan will change accordingly, and the qualitative change of Wu Yuan will produce more powerful power. The second is the total amount of Wu Yuan, the content of Wu Yuan in a person's body can also determine the power of Wu Yuan, the higher the Wu Yuan content, the stronger the power generated when Wu Yuan compresses the output, and the power of Wu Yuan's overall output will be higher. The third is the purity of the martial element, the newly awakened martial yuan will contain a lot of impurities, which may contain a variety of attributes, in this way, the purity is not enough, and the same amount of martial yuan will not be able to exert equal power. Just like the gasoline we usually know, the higher the purity, the better the gasoline burns, and the higher the energy it can provide, without causing too much waste residue and consumption. Mu Qinzhi raised his hand as he spoke, spread it out, and slowly, a layer of dark blue martial arts aura appeared in the palm of his hand, flowing like a wave.

"In order to give you a better understanding, I will demonstrate once, now the Wu Yuan in my hand has not been refined, it contains a lot of impurities, and the color of Wu Yuan is also a dull feeling. Mu Qinzhi said, and the slender hand that condensed Wu Yuan slapped on a solid stone next to him.

With a "boom", the solid stone shook slightly, and a vague and shallow palm print appeared on it, and small cracks spread out around it, and the solid stone was full of small holes.

The classmates looked at the solid stone with full attention, and Mu Qinzhi raised his slender hand again, and his palm was covered with a layer of dark blue Wu Yuan, "This is a situation where there are more impurities, now I will refine it a little and refine it." When the words fell, Mu Qinzhi concentrated, and the Wu Yuan in his palm suddenly became brighter, blue as the color of the blue sky, and more condensed and profound than before, this scene surprised the students.

With a "boom", Mu Qinzhi slapped another hard stone with one palm, and his voice was even deeper than before.

This time, the solid stone shook suddenly, and it was actually moved back dozens of centimeters by this huge force, and the palm print on the solid stone was huge and deep, the depression was 5 centimeters deep, and there were countless cracks around it, like being blown open by a bomb.

In the shocked eyes of his classmates, Mu Qinzhi pointed to the palm prints on the two solid stones and said, "I just hit these two solid stones with the same amount of martial yuan, and you can see that the same amount of martial yuan, but due to the problem of impurities, the power created will also be different." Wu Yuan, who has more impurities, has low power, the palm prints on the solid stone are shallow and blurry, and the energy is scattered and not concentrated, and it can't exert the power it should have. The higher the purity of the Wu Yuan, the higher the power, the palm print on the solid stone is deep and clear, the energy is concentrated, and the power is far more than that of the Wu Yuan with more impurities. ”

Mu Qinzhi's palm was flooded with a layer of Wu Yuan's breath that flowed like ocean waves, and added: "In other words, Wu Yuan is like water, the higher the purity, the better the water without impurities. ”

Mu Qinzhi's teaching method of combining theory and practice from shallow to deep immediately benefited the students a lot, and they immediately took notes, and Li Qi also nodded in agreement.

She made sense, but she wasn't entirely right. Roy said lightly.

"Huh?" Richie wondered.

She said that Wu Yuan is like water, the higher the purity of the water, the better the water without any impurities? That is not necessarily, for the human body, long-term drinking too pure water is not necessarily good, on the contrary, it contains a certain amount of impurities, such as minerals, trace elements, such water is more beneficial to the human body. Roy said.

Li Qi was stunned when he heard this.

"These theories are also from your martial arts world, and recently I will learn about the knowledge and culture of your world whenever I have time, so that I will not be ignorant of your world. "Turning back to the topic, in addition to a certain amount of impurities in water, there is also gunpowder, which is also made by mixing a variety of energetic materials according to a certain proportion, and the explosion power created by mixing different proportions is also different, such as explosives and fireworks. ”

"I understand what Senior Sister means, 1+1 is greater than 2, control the balance between various elements, properly integrate the power of various elements, and exert the greatest power. Li Qi suddenly nodded his head.

At this time, Mu Qinzhi had already given a lecture on the next class content, only to see that the lights in the cultivation hall began to dim, she was a little delicate, and then an illusory shadow appeared out of thin air, suspended in the air.

This is a beautiful girl, with a slender body, lips like red cherries, skin like snow, bright eyes like stars, long dark green curly hair, fluttering like waves, with a pale green cheongsam, sexy and with a girl's unique youthful atmosphere. Ethereal and light, standing in the void.

It's the artificial intelligence girl of Dawn University.,Ruriko.。

"Is this a soul body?" Roy said with some surprise.

"Uh...... No, it's stereoscopic imaging, she"

"Hello students, I'm Ruriko. The girl smiled slightly, and bowed to everyone in the amazed eyes of everyone.

"Hello, Ruriko. I may want to ask you to show the students the process of refining the purity of Wu Yuan. ”

"Okay, that's fine. Ruriko nodded obediently, and the green jade fingers gently swiped in the void, and then several stereoscopic images were gradually generated, and the void floated.

The students saw a transparent three-dimensional image of the human body appear in front of them, and an egg-sized circle of light appeared in the abdomen, which was the heart of the warrior, and then a turbid dark blue martial yuan overflowed from the exit of the warrior's heart, and then drilled into the entrance of the warrior's heart, and then overflowed from the exit, the martial yuan changed, and the color changed from dull to bright. Then he went in and out again and again, and the color of Wu Yuan's breath became brighter and brighter, as if the impurities had been completely refined.

"Therefore, the refining of Wu Yuan's purity is to control Wu Yuan's continuous entry and exit from the heart of the martial artist, the heart of the martial artist is like a filter in our life, Wu Yuan repeatedly enters and exits, and under the filtration of the heart of the martial artist, the impurities can be eliminated and the purity of the refinement can be obtained. Of course, the higher the control of Wu Yuan, the faster the speed of refining Wu Yuan, and the higher the purity. Mu Qinzhi explained.

Controlling Wu Yuan to keep going in and out of the heart of a martial artist? Constantly going in and out? Li Qi suddenly thought about it, and a sly evil smile rose at the corner of his mouth, and a picture of driving accidentally appeared in his mind.

But Li Qi immediately stopped the car, shook his head violently, and shook off those pictures wildly, otherwise if he was noticed by his senior sister, he would be waiting for another electric shock.

"If Wu Yuan is refined, it will be much easier to attach Wu Yuan to the outside, and according to his own practice route, he can guide his own Wu Yuan. Next, students will practice on their own. Mu Qinzhi commanded.

The students immediately entered a state of cultivation, closed their eyes, concentrated, and sat cross-legged, with their palms spread out and their palms upward.

"This is actually a test of Wu Yuan's control, for your current mental level, it is not difficult to refine Wu Yuan repeatedly and attach it to the body surface. Roy said.

Li Qi nodded, closed his eyes and concentrated, he gradually sensed that the martial yuan in his body was constantly entering and exiting the heart of the martial artist, maybe because of the high level of Haina's heart technique and his own spiritual power, the refining speed was very fast, in less than five minutes, Wu Yuan had entered and exited the heart of the martial artist for ten cycles, a total of ten times.

However, he encountered a very speechless situation, that is, once he wanted to release the refined Wu Yuan, the magic array in the spiritual sea would be ready to move, and the four demon source points would subconsciously engrave the image of the fireball technique.

Oops! Wouldn't I unleash the Fireball Technique in front of everyone?!

Li Qi tried his best to control it, but the scorching heat continued to condense in his fingertips, and seeing that the fireball technique was about to be released, he had to forcibly withdraw the Wu Yuan in his body in a hurry and cancel Wu Yuan's external attachment, so that the fireball was also canceled.

He didn't want to tell anyone the secret of his ability to unleash fireballs, which was undoubtedly digging his own grave. You must know that if Li Qi's fireball technique is in the eyes of martial artists, it is Wu Yuan release, and those who can do Wu Yuan release can only do it by reaching the Xuanhu level of the martial artist stage. And he, Wu Yuan, only cultivates in the martial apprentice period, and he is a budding martial artist who has just completed his awakening, and he can actually release Wu Yuan, if this kind of thing is announced to the public, it will definitely be shocking to the world, and he will be dragged to be slaughtered as a pig for research.

"Don't worry, it's just that I'm not used to it at first, take my time, divide it into two uses, and control the switch between Wu Yuan and Demon Source. Roy admonished.

Li Qi continued to immerse himself in refining, repeatedly, and once the fireball technique showed signs of gushing out, he forcibly interrupted Wu Yuan's refining and release, and started all over again.

What a grinding little fireball! Li Qi gritted his teeth and said ruthlessly in his heart.

In fact, he had already refined Wu Yuan to ten cycles, and the purity was extremely high, and it was because of the problem of the automatic release of the fireball technique, which caused him to be stuck here all the time.

After a while, cheers came from Li Qi's side one after another, all because Wu Yuan purified and successfully attached.

Richie's face was impatient, and he was a little restless.

Mu Qinzhi constantly reported the purity of refining Wu Yuan from his classmates.

"Du Gang, Wu Yuan refining purity level 3. ”

"Lin Yuanyuan, Wu Yuan refining purity level 3. ”

“......”

"Feng Jun, Wu Yuan's refining purity is level 5. ”

As soon as Mu Qinzhi said this, the classmates suddenly burst out in exclamation, and they all whispered in private, looking at Feng Jun's eyes with surprise and envy.

Feng Jun tilted his head arrogantly, clasped his hands in front of his chest, and squinted at Li Qi, who was still trying to refine Wu Yuan, with contempt.

Seeing Li Qi, whose eyebrows were furrowed and his face was impatient, the corners of Feng Jun's mouth raised a disdainful and smug smile.

Hmph! It is worthy of being Wu Yuan's qualification, only the scum of ordinary quality!