As the refining level of azure sand was raised to level 2, Zhang Yu felt countless images of refining azure sand flashing in his mind, the operation of various mana, the operation of Gangqi, the operation of materials, the control of heat, the details of spraying fiber composite films, and the experience of stabilizing mana circuits......

One after another, refining memories appeared in Zhang Yu's mind, making him suddenly have a deeper understanding and perception of the refining of azure sand.

So when he tried to refine azure sand again with one-tenth of the material, the success rate suddenly increased a lot.

The quality of azure sand has been visibly improved.

Ye Xingli on the side looked at the finished azure sand refined by Zhang Yu, and was slightly surprised: "The color is bright, and the impurities and purity seem to be much better than before...... Is it a level 2 azure sand?"

"Good luck? Or is he really making fast progress?"

Ye Xingli continued to observe, but soon found that Zhang Yu began to compress the refining time indiscriminately, and the azure sand produced returned to the level of level 1 again.

And when the six-hour practice was completely over, Zhang Yu almost compressed the refining time of the azure sand to 15 minutes after repeated attempts.

"The material is compressed to one-tenth, which is 0.003 spirit coins."

"The rental fee for the venue and equipment is 0.7 spiritual coins for 6 hours, and it is 0.35 spiritual coins after sharing it with Ye Xingli."

"If you continue to refine once for 15 minutes in the future, you can complete 24 refining times in 6 hours."

Zhang Yu silently calculated in his heart: "If you calculate it this way, the cost of refining once is almost 0.01758 spirit coins."

"And this is not the limit."

Zhang Yu thought of his phaseless wrestler, deep cold wrestler.

Just like when he was on a construction site, he could use phaseless wrestlers and deep cold wrestlers to work, and he felt that refining tools could also be done in the same way.

Zhang Yu thought to himself: "The compression of materials and time can be fixed, next time...... Just activate the four-fold thinking to see if the refining of the four parts of azure sand can be carried out simultaneously."

"If it is successful, not only can the cost continue to be lowered, but the efficiency of cultivation can also skyrocket again."

"In addition, after I continue to refine azure sand, if I sell some of the azure sand to restore blood, the spent spirit coins can be pressed down a little more."

Thinking of this, Zhang Yu looked at Ye Xingli on the side and asked: "Senior sister, if I want to sell some products I have practiced in the future, where is it more convenient to ship them?"

Ye Xingli thought about the instructions of the Magnetic Pole True Monarch and said directly: "If you can trust me, just leave it to me in the future."

"I still have some connections in the refining department, and I can help you sell it."

"However, the basic refining products can't be sold at a high price, and at most they can make you get back some money."

Zhang Yu quickly nodded and said: "I know, it's okay, just give me back."

After the two sides left the laboratory, they said goodbye to each other.

And Ye Xingli looked at Zhang Yu's departing back and sent a message to the Magnetic Pole True Monarch: Master, Zhang Yu and I came out of the laboratory

Magnetic Pole True Monarch: How is Zhang Yu performing?

Ye Xingli: The talent in refining weapons is okay, and the level 2 azure sand has been refined in 6 hours

Ye Xingli: But the attitude is very problematic, and I like to change the portion size and time randomly when I first started

Ye Xingli briefly recounted what she saw.

The Magnetic Pole True Monarch returns: I understand

Magnetic Pole True Monarch: If he wants to sell the output in the future, then help him temporarily consign it

Magnetic Pole True Monarch: In terms of the laboratory, you can also share the cost with him

And listening to the Magnetic Pole True Monarch asking him to help Zhang Yu like this, Ye Xingli finally couldn't bear to be a little confused.

She asked: Master, Zhang Yu is a student of the Department of Civil Engineering, right? The talent of refining weapons is not very good, why help him so much?

Magnetic Pole True Monarch: Director Gao of the Department of Civil Engineering wants to transfer his disciple to the Refinement Department

Magnetic Pole True Monarch: Although I don't really recommend him to do this

Magnetic Pole True Monarch: But the friendship between us for hundreds of years, since he insists, it will be considered a loss, and he still has to help if he should help

Looking at the message sent by the Magnetic Pole True Monarch, Ye Xingli couldn't help but sigh in her heart about the friendship between the Magnetic Pole True Monarch and Director Gao.

She said to herself: "Sure enough, it is not that Zhang Yu, a civil engineering student, attracted the master himself, but for Director Gao."

After all, a civil engineering student is the same as the security department, and he belongs to the "college student" in Wanfa University? With Master's high perspective, how could he be interested?

I'm afraid you have to accept a red envelope first.

"But Master and Director Gao...... Is it friendship between ancient monks?"

"Although Master has kept up with the times, has been learning cutting-edge immortal techniques, and kept up with the trend of Kunxu, he is an ancient person after all, in his thoughts...... After all, it is inevitable to be influenced by the ancient dross culture."

Just as Ye Xingli was thinking, the Magnetic Pole True Monarch sent another message.

Magnetic Pole True Monarch: This matter is still confidential, even if we ask Director Gao and me in person, we will not admit it

Magnetic Pole True Monarch: Remember not to reveal it

Ye Xingli: Master, don't worry about my mouth, even if someone smashes 1,000 spirit coins, I won't say it

……

At the same time, Zhang Yu on the other side was walking on the way to the construction site on the 667th floor.

He first looked at the azure sand level 2 (10/20) on the feather book, and then looked at another refining skill on the feather book.

Azure Cloud Dou Level 0 (0/1, Azure Sand Level 2/5)

This Tianqing Caiyun Dou is also the magic weapon drawing that Zhang Yu learned in the course of the Refinement Department, which is a magic weapon that can be specially used to store azure sand.

With the inffusion of mana, it is capable of massive spraying and recycling of azure sand.

And just like Zhang Yu's practice at the beginning, if many weapon refining skills want to be practiced, there are also threshold requirements.

For example, the refining of azure sand has requirements for mana and qi. And for azure cloud pockets, you need to master certain azure sand refining skills first.

"Whether it is a magic weapon or a Dharma bone, in addition to the requirements of realm, Taoist heart, and mana, there are often pre-requirements for various refining skills."

Zhang Yu secretly said in his heart: "If you want to cultivate step by step to the level of being able to refine your own body into a Dharma bone, in addition to cultivation, you need to master a lot of pre-refining skills."

"There is still a long way to go."

"But there are so many skills in refining tools, there should be no need to improve each one to the extreme in the future, as long as it is enough."

As for the further goals, such as what has its own refining laboratory and established its own production line...... Zhang Yu can only think about it now.

When he came to the construction site familiarly, he saw a phaseless wrestler appearing beside Zhang Yu.

Then he stretched out his hand and sprinkled a handful of azure sand on the bodies of these phaseless wrestlers.

I saw that between the rolling qi in the body, there was a trace of the luster of azure sand, which made the phaseless wluxer in front of him feel more solid.

Zhang Yu secretly said in his heart: "Azure sand can increase the conduction efficiency of Gang Qi and reduce the consumption rate, which should improve my work efficiency."

So next Zhang Yu controlled the phaseless wrestlers to work on the construction site to make money, while he was shrouded in a cloud transformed by the formless clouds, and began to practice the seventh technique of the martial arts holy body.

A few hours passed, and when it was dawn, Zhang Yu calculated today's salary and said to himself: "The construction efficiency has increased by almost 5%."

"Yes, yes, if the level of Azure Sand is higher in the future, the efficiency of improvement should be higher."

"In this way, even if there is not much azure sand consigned by Sister Ye Xingli, I can use it to increase my income at the construction site."

Thinking of this, Zhang Yu became more and more energetic.

In the following days, Zhang Yu rented a refining laboratory once or twice a week to practice his refining skills.

The rest of the time, I attend classes during the day and work at the construction site at night, while practicing the exercises of the Martial Arts Eucharist.

In addition, he also had to take time to study the refinement course in the Taiqing Realm, to absorb 200% quality mana to improve his mana quality, and to go to the Hammer Heart Residence to temper the Dao heart......

……

In the laboratory.

Ye Xingli glanced at the three phaseless wrex on the side, and said to herself: "What a strong thinking ability."

"But this is multi-purpose, and it produces multiple parts of azure sand at the same time...... Is it really good for improving your refining skills? To improve your refining skills, you don't rely on the number of times."

In Ye Xingli's view, unless you want to catch up with the output, you should concentrate on refining a piece of azure sand, feel the materials, steps, time, heat, mana, qi and other details, and constantly learn and adjust, which is better for improving skills.

And at the next moment, Ye Xingli's eyes suddenly moved, looking at the azure sand that had been successfully refined in front of a phaseless wrestler.

"Level 3 azure sand?"

"It's a bit interesting."

Ye Xingli said secretly in her heart: "Although I like to mess around, Zhang Yu's talent in refining weapons seems to be stronger than I expected before."

But she didn't care too much about this, after all, when Ye Xingli first refined the azure sand, she directly refined the level 5 azure sand.

Turning her head, Ye Xingli continued to interview her new spirit.

"Did you graduate from Hehuan University during your lifetime? Can you tell me what your first gender is?"

"You are a colonel? I'm sorry, I only want to recruit top ten graduates of soul cultivation this time."

"Heavenly Demon University? Welcome to join, just treat my right hand as your own home in the future."

……

As soon as he came out of the laboratory that day, Zhang Yu received a message from Gongshu Jin.

Looking at the content of the message, Zhang Yu's eyes lit up: "Is the buffet about to start?"

At the same time, Ye Xingli on the side looked at Zhang Yu and said: "You have to go to the party for a while, right? After all, it can be regarded as a celebration party of the Department of Civil Engineering."

Zhang Yu nodded, he already knew that this party was arranged by Ink Entropy, mainly to celebrate the second place in this inter-school league.

Ye Xingli said casually: "Then let's go together, I happen to be participating."

Zhang Yu followed Ye Xingli to the 650th floor of Wanfa University, and as soon as he walked out of the anti-gravity channel, he saw Gongshu Jin already waiting outside.

Seeing that Zhang Yu and Ye Xingli were walking together, Gongshu Jin was surprised.

Compared with the night star Li he saw for the first time last year, today's Night Star Li has been very different in Gongshu Jin's eyes.

That is, the 15th place in the refinement system on the opponent's head has become the 8th in the refining system.

Being able to have this ranking in the Refinement Department among the three ace departments, Ye Xingli was already a first-class student at Wanfa University in the eyes of Gongshu Jin.

Seeing the two of them talking and laughing, Gongshu Jin said in his heart: "When did Zhang Yu have such a good relationship with Ye Xingli?"

(End of this chapter)