In the next few days, Chen Changan was much more leisurely.

He has basically completed all the things that Mr. Zhang explained.

During the day, I occasionally go to the Elixir Pavilion to take a look, read books on the knowledge of medicine refining, and work hard to cultivate at night.

Now, Chen Changan has temporarily focused his cultivation on the "Heaven Devouring Sword Technique", which is too important for Chen Changan.

"Sky Devouring Sword Technique" is divided into seven layers: Devouring Matter, Devouring Man, Devouring Soul, Devouring God, Devouring Earth, Devouring Sky, and Devouring Everything.

The first layer, phagocytosis.

Objects refer to utensils, including weapons, rocks and other things that contain the power of heaven and earth.

Now, what Chen Changan can do is phagocytosis.

Lu Xian and the others who had encountered him, at that time, Chen Changan accidentally absorbed the power in the sword, and later absorbed the energy of the talent spar and the power of the essence in the Tower of Babel when he was admitted to the hospital for assessment.

However, at that time, Chen Changan did not have a complete cultivation method, so he wasted a lot.

Now, with the Sky Devouring Sword Technique, he can devour more, faster.

Not only that, devouring is just an auxiliary ability of this exercise, and the sword technique inside is even more powerful.

In the Tianyuan Continent, the grades of the exercises are divided into four levels: heaven, earth, Xuan, and Huang, with the heaven-level exercises being the strongest, and the yellow level being the second, and each level is subdivided into three grades: upper, middle, and lower.

And the "Heaven Devouring Sword Technique" has reached the terrifying earth-level upper grade, and if it can be cultivated to the end, it can even be comparable to the heaven-level exercises.

Sword cultivation is a general term for those who cultivate swords, and it is also a kind of cultivation of human character.

Such as the sword is upright, such as the sword is unyielding, like the edge of the sword.

The way of sword cultivation is not good. Dimension the sword, dimension the heart, dimension the self.

The swordsman, stepping through the heavens and all the worlds, has not yielded, has not retreated, and has not been cowardly! Yes, it is just an indomitable determination, and there is only one sword!

This is, sword cultivation!

This is the explanation of sword cultivation in the opening chapter of "Sky Devouring Sword Technique".

The next thing to talk about is the method of cultivation.

If you want to practice this technique, you must first cultivate immortals.

Mortals mostly use martial arts to enter this way, practice the martial arts of the inner family, reach the breath, and penetrate the Zhou Tian. This is the way of everything, and everyone can learn it.

I am afraid that not everyone has achievements, everyone can understand the spirit and spirit, the way in this dust also has a lot, ordinary people see it, but also do not feel the great wonder, but the sword in the air, with the void flying, if ordinary people see it will be greatly shocked, think that ghosts and gods, it is not ghosts and gods, but ordinary people are difficult to understand.

Cultivating immortal art is actually a way to combine with nature.

Fighting swords, painting ghosts and gods, there is no source of strength in the end, how can you cast a spell? This technique is a true technique, and with its unfinished power, it can cut through the void and smash the sun and stars.

My body can cut the sky, between nature, rushing silently, all my life, all my strength, all my spirit, my body is naturally unified in the universe, the spiritual light lingers, all spirits follow it, the natural power is gathered in the rapids, the luck can live forever, and the chaos can destroy the sky.

......................

Cultivating sword immortals, imperial envoy swords, has belonged to the way of peeping immortals

Therefore, this extraordinary product is also.

This is said to you, and I hope you will refer to it in detail...

The above is the method of sword practice, after Chen Changan read it, he felt a headache, what he said on it, obscure and profound, with his understanding, he can't easily comprehend.

After a few days of cultivation, Chen Changan still knew nothing about this sword technique.

Time flies.

Seeing that Chen Changan has entered the academy for more than half a month.

In the past half month, the newly admitted disciples have made progress.

Among them, Jin Yu'er's cultivation has reached the peak of the eighth layer of metamorphosis, and she is only one step away from stepping into the ninth layer.

Even Qianyuan has reached the seventh level of metamorphosis.

These two people have cultivated from the sixth order in half a month to reach the current realm.

Jin Yu'er was just that, Chen Changan knew that she had an aunt who was an alchemist, and she had taken at least four or five kinds of precious pills like the Cleansing Pill.

As for Qianyuan, after Chen Changan solved Zhu Tou and the others, no one would embarrass them anymore, so they could also have more time to cultivate, but even so, Qianyuan's cultivation speed was very fast, which showed that his cultivation talent was high.

At such a speed, it can be said to be a miracle when placed in the outside world, but in the academy, it can only be regarded as relatively fast - after all, the transformation realm is here, and it is only the entry stage.

And Chen Changan after taking the Myelin Cleansing Pill last time, his cultivation was promoted to the ninth layer, because he was promoted too quickly before, Chen Changan was worried that his foundation was unstable, so he has been comprehending the Heaven Devouring Sword Technique these days, and has not improved his cultivation.

Chen Changan calculated the time, and his half-month time with Zhang Lao was approaching the deadline.

According to the previous agreement, he wanted to stay at Mr. Zhang and Mr. Yuan for half a month.

In the past ten days in the Elixir Pavilion, Chen Changan's way of refining medicine has been regarded as a beginner, and he can even refine medicine independently.

Zhang Lao was very satisfied with him, and every time he mentioned him, he smiled from ear to ear.

On the last day of the appointment, Mr. Zhang met Chen Changan alone.

"Your talent in alchemy is amazing, you can get started in such a short period of time, and you can refine medicine independently. It is expected that in the distant future, you will definitely be a miracle star in the alchemy world. ”

Zhang Lao's eyes flashed with complicated emotions, staring at Chen Changan, as if he had pinned some kind of emotion.

Before leaving, Mr. Zhang solemnly handed Chen Changan a copy of "The Auspicious Solution of Medicine".

"In this volume, in addition to the profound knowledge of alchemy, there are also notes and experiences left by several alchemy masters, including me. ”

In addition to "The Auspicious Solution of the Medicine Dao", Zhang Lao also gave Chen Changan ten stones and an old medicine furnace as promised.

That medicine stove was used by Zhang Lao a long time ago and has been kept as a souvenir, but now it has been given to Chen Changan.

After Zhang Lao handed these things to Chen Changan, he let out a long breath, as if he had let go of a certain burden.

Holding these things in his hands, Chen Changan felt heavy.

When he left the Elixir Pavilion, Chen Changan had a very strange feeling.

"Why didn't Elder Zhang mention taking me as an apprentice? Or does he have to wait until he and Elder Yuan to separate the winners and losers?"

Chen Changan was puzzled, but he didn't think much about it.

Back in the courtyard, Chen Changan began to sort out the resources in his hands.

So far, his wealth in the academy, excluding the medicine furnace given to him by Elder Zhang, and a little bit of pills, is only these ten inferior stones.

It is the trading currency of the cultivation world.

The silver taels in the world are worthless in the world of cultivation.

Chen Changan vaguely heard someone say that one million silver taels can probably be exchanged for a defective stone.

Now that he finally has the stone in his hand, Chen Changan came to the trading hall of Jinyang Academy.

The trading hall of the college is limited to transactions between members of Jinyang College and is not open to the public.

The moment he really stepped into the trading floor, Chen Changan couldn't help but be shocked.

The figures coming and going in the hall were basically students in the middle and late stages of the Dust Realm, and even some middle-level personnel from the academy.

Those figures out of the dust realm, any of them, the aura that was emitted at random made Chen Changan breathless and his blood pressure suppressed.

Seeing this scene, Chen Changan clearly realized that he was at the bottom of the academy, that kind of ant-like insignificance.

In the trading hall, there are many stalls, and on the stone table in front of each stall, there are some items, including divine weapons, elixir materials, and exercise cheats, and naturally there are some things that Chen Changan does not know.

Chen Changan took a cursory look, and in the trading hall, there were more martial arts and some refining materials for sale.

Among them, a local low-grade martial arts, ranging from ten to twenty inferior stones.

When it reaches the middle grade of the ground level, the price increases by dozens of times, or even hundreds of times, at least hundreds of times to taste spirit stones.

Chen Changan couldn't help but shake his head, and then found that the "Myelin Cleansing Pill" he had taken was actually worth five inferior spirit stones.

All pills, on the trading floor, are sold very expensive.

Some of the more precious pills are even more competitive with each other in the trading hall.

"The pill is so valuable in the academy, no wonder the status of the alchemist is so high. He pondered in his heart.

Gradually, Chen Changan had an idea in his heart and formed a clear way to make money.

With Chen Chang'an's extraordinary talent in refining medicine, with a little study, he can refine a good pill, and at least he can make a small profit.

Now, his biggest limit is that he only has ten inferior stones.

Chen Changan was in the hall, wandering around for a long time, spending a piece of inferior spirit stone to buy a sufficient amount of green bamboo charcoal.

Qingzhu charcoal is the lowest source of Danhuo, which is relatively cheap, and can only refine some low-grade pills, and most of the slightly more advanced pills cannot be refined.

At present, Chen Chang'an has limited stones in his hands, and it is enough to buy green bamboo carbon.

Next, he began to buy the materials needed for refining medicine.

Of the remaining nine inferior stones, Chen Changan almost all purchased alchemy materials.

"At present, there are two kinds of pills that are most suitable for me to refine: the Bone Cleansing Pill and the Soul Enhancement Pill. ”

The materials chosen by Chen Changan have corresponding goals.

[Bone Cleansing Pill]: This is similar to the Bone Cleansing Pill that Chen Changan has taken, it is a pill that is half a price lower than the Bone Cleansing Pill, with Chen Changan's current alchemy refining technology, it is still difficult to refine the Bone Cleansing Pill, and the Bone Cleansing Pill also has a great effect on the monks of the Mortal Realm.

[Enhancement Pill]: A unique pill prepared by the alchemist in the academy, which can assist cultivators in their cultivation, and is suitable for disciples who have left the dust realm in half a step to the dust triple before.

Chen Changan chose these two for two reasons:

First, these two kinds of pills are relatively difficult to refine, and the materials are not expensive.

Second, due to the limitations of cultivation and refining conditions, these two pills were almost the limit of Chen Chang'an's reach.

The more advanced elixir has requirements for fire, and some even need to be cultivated out of the dust realm before they can be refined.

All the stones in his hand have been consumed, and the materials for Chen Chang'an to refine the pill have basically been collected.

The remaining auxiliary materials are relatively cheap, Chen Changan can easily get them from the Elixir Pavilion, and he can even ask Jin Yu'er for help.

After the stone was spent, Chen Changan reluctantly walked out of the trading hall.

After walking out of the trading floor, the heavy sense of oppression disappeared.

On the way back to the outer courtyard, Chen Changan went to the Elixir Pavilion again and borrowed a few auxiliary materials from Jin Yu'er.

At this point, all the materials needed for the Bone Cleansing Pill and the Enhancement Pill have been collected.

"You're going to start refining medicine?" Jin Yu'er was a little surprised.

But immediately, she felt that what she was asking was complete nonsense, Chen Changan already had the ability to independently refine medicine a few days ago.

Back in the courtyard, Chen Changan closed the door, put the medicine stove aside, and put all the materials in class.

He couldn't help but take a deep breath, and next, it would be a key point in his development in the academy.

If this step is taken well, his cultivation will also improve by leaps and bounds.

If the refining fails, if you want to get ten more inferior stones, you have to wait at least half a month later.

"Bone Cleansing Pill" and "Enhancement Pill", he has never seen other alchemists refine them, only the Dan recipe and the refining method.

Fire, feeding, fire control... Everything went smoothly.

Time passed slowly, one hour, two hours, three hours......

It was not the first time for Chen Changan to refine pills, but he had never felt that the process of refining pills was so long.

In the alchemy room of the Elixir Pavilion before, all he refined were some low-grade pills, which were relatively easy to refine.

And the elixir refined this time has already exceeded the level he usually refines, and it is the highest-grade elixir that Chen Changan has refined since he set foot in the way of alchemy.

Three or four hours passed, and the entire refining process began to come to an end.

Beads of sweat oozed from Chen Changan's forehead, and the time it took to refine the Bone Cleansing Pill was much longer than the low-grade pills he had refined before.

You know, four hours is almost the limit of how much he can use his power to control fire.

It wasn't until five hours later that the elixir was finally refined.

At this time, Chen Changan was almost exhausted, sitting on the ground weakly, condensing the last trace of strength that could not be left, and patting it lightly in the air.

The medicine furnace opened, and several thumb-sized pills jumped out.

Chen Changan stretched out his hand and ingested the five bone cleansing pills in his hand.

The number of pills that appear each time is related to the amount of materials invested, and the materials that Chen Changan put in this time can only refine five.

Now the key issue is the yield.

"One is good, one is ordinary, the other three, one is inferior, and two are waste. Chen Changan's eyes swept and he came up with the yield rate this time.

Yield, 60 percent.

To be honest, Chen Changan was a little disappointed with this result.

It must be known that before this, when he was refining other pills in the Elixir Pavilion, the yield was mostly one hundred percent, at least eighty percent.

Of course, Chen Changan also knew that the yield of alchemy was related to the grade of the elixir, as well as the cultivation and technique of the alchemist.

If an alchemist of Elder Zhang's level is allowed to make a move, the yield of the Bone Cleansing Pill is basically 100%.

Because this elixir is too low for Zhang Lao, it is not worth mentioning at all.

And for Chen Changan, refining an elixir like the Bone Cleansing Pill is almost a leapfrog refining, if it weren't for the fact that the power reserves in Chen Changan's body are much more than those of the same level, this refining is likely to end in failure.

"Three bone washing pills are worth about fifteen inferior stones!" Chen Changan calculated, his eyes lit up again.

Although the yield of the pill was not high, he still "earned".

Because the cost of materials for refining these few Bone Cleansing Pills is about three to four inferior stones.