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Xiao Cheng practiced the Nine Xuan Immortal Sutra, and only by condensing the golden pill could he cast the pure yang true fire, but his body already had the pure yang qi, and it was not surprising that he could cast the pure yang true fire before reaching the golden pill.

The Pure Yang True Fire is warm and pure, not as strong as the Burning Yang True Fire, and its power is much weaker than the Burning Yang True Fire, but it is extremely suitable for alchemy.

To refine Pei Yuan Dan, the main medicine is Qilin Fruit, which is a rare medium-grade spiritual grass, which is somewhat similar to the red-skinned pumpkin, but refining a furnace of Pei Yuan Dan may only require one-twentieth of the Qilin Fruit.

There are also eight flavor adjuvants, which are Lingshen Flower, Falling Rain Grass, Peiqi Lotus, Huaye Plant, Jinhai Sand, Demon Pill Bone, Honey Source Cen, and Dream Spirit Flower.

In addition to the Demon Pill Bone and Jin Haisha, the remaining six flavor adjuvants are all common low-grade spirit grass, these six flavor adjuvants are not irreplaceable, and they can be replaced with the same type of spirit grass, but the success rate will definitely be greatly reduced.

Among Pei Yuan Dan, the main medicine is the most precious, and other excipients are nothing, the cost of Pei Yuan Dan is actually not high, it is not worth a medium-grade spirit grass at all, and the Emei faction sells Pei Yuan Dan every year to make huge profits.

However, there are very few alchemists who have refined Pei Yuan Dan, and even the best pills refined by Wu Shen Daoren, an alchemist of the seventh order of Jindan, are only about three grades, and they are not up to the level of refining Pei Yuan Dan.

Xiao Cheng followed the skills in the Dan technique, carefully touched the Dan furnace with both hands, and slowly poured the pure yang true fire into the Dan furnace.

The first step in refining the pill is somewhat similar to refining the flying sword, which is to remove the impurities in the medicinal materials.

After removing the impurities, the excipients are added to it in a certain order and time, and the elixir is continued to be refined.

The heat in this process is particularly important, the ingredients in the molten liquid are mixed, the heat is too small will make some ingredients not be fully refined, and the heat is too large will destroy some ingredients. The timing and order of adding excipients are also extremely important, a little earlier and a little later, and the wrong order will make the pill fail.

Alchemy is an extremely mind-consuming and time-consuming task, Xiao Cheng used a few Yunling Pills to provide spiritual energy protection and nourishing liquid, and refined Pei Yuan Dan step by step according to the Dan formula, and it took a full four hours before it was finally completed.

When he took out the pill in the cooling mold, Xiao Cheng couldn't help but be slightly disappointed, all of them were black hawthorn pills, no need to ask, the first furnace of Pei Yuan Dan was a failure.

However, he knew that he was not an alchemy genius, and the failure of refining the pill for the first time was inevitable, and he was only slightly disappointed.

There were quite a lot of elixirs in the black box, and Xiao Cheng immediately began to refine the second furnace of Pei Yuan Dan.

With the experience of failing in refining Pei Yuan Dan for the first time, the second time I failed a little, failed eight pills, and successfully refined a Pei Yuan Dan, although the color was extremely poor, but at least it succeeded.

The second furnace succeeded in one, Xiao Cheng saw that the time was still early, so he began to refine the third furnace, and more than three hours passed, the third furnace Pei Yuan Dan came out, this time it was successful two Pei Yuan Dan, the fineness was slightly better than the first one, and it reached four grades steadily.

Xiao Cheng wiped the dense sweat on his forehead, looked at the three Peiyuan Pills in his hand, nodded with a smile, refined three furnaces of Peiyuan Pills, and succeeded in three of them, with a success rate of one in nine, which was already slightly higher than that of ordinary alchemists.

At this time, if there was a senior alchemist here, and he learned that Xiao Cheng had reached a nine-in-nine success rate in his first alchemy, he would definitely be stunned and scolded Xiao Cheng for being a freak.

It is extremely difficult for alchemists to get started, maybe they may not be able to succeed in refining dozens of furnaces in a row, and it is even more difficult to refine the elixir from the top of the fourth grade, and many alchemists will not be able to refine the four-grade pill in their lifetime, otherwise the medium-grade pill will be rotten on the street long ago.

As a result, Xiao Cheng was good, and he started refining the four-grade Pei Yuan Dan, and the refining of the three furnaces actually succeeded in three pieces, this is not a freak or anything, it is completely a blow to people, so how should other alchemists live.

Xiao Cheng is self-aware, and he can successfully refine three Peiyuan Pills, although it is inseparable from his control of the true fire and his concentration on Cheng Dù, but it is mainly because of the method of cultivating the Pill with the spirit, otherwise it is impossible to refine the pill successfully for the first time, and it is also a four-grade Peiyuan Pill.

Now that there are three Peiyuan Pills, he doesn't plan to eat them himself, nor does he plan to give them to his sister-in-law Yiyi or Qinglian.

It's not reluctant, but if it's an elixir, the effect will be greatly reduced after taking it a few times, and since the number of times is limited, it is natural to use the best.

These three Pei Yuan Dan are just defective products that he has obtained from practice, and it is not too late to refine some Pei Yuan Dan for these people after the refining technique is proficient.

Xiao Cheng turned on his mobile phone to look at the time, it was already eight o'clock in the evening, his brows were furrowed, the New Year, the night of the Chinese New Year's Eve, the lights of thousands of homes, the excitement of every family, he squatted here for a long time refining pills and the scenery was terrible, and the family was probably having a reunion dinner at this time......

Thinking of this, although I didn't care about the festival and just left the family in the morning, I was inevitably a little empty in my heart.

This year's Chinese New Year's Eve, I wonder if my sisters-in-law will dress up as beautiful and moving as the previous New Year? I don't know how the New Year is doing? I don't know if my ancestors are still smiling and full of light? I don't know ...... I don't know what year the Heavenly Palace Que is tonight......

Chinese New Year's Eve night but can't be reunited, no matter how much you smack it, it's not a taste...... After all, the strength is still not enough, otherwise why do you need to care so much...... Otherwise, why did the ancestor need to help him cut off the fetters and let him develop freely......

Xiao Cheng shook his head, dispelled these mixed thoughts, and put the Dan furnace into the black box and threw it into the small world.

......

Back in the living room on the third floor, Jiang Hai and Hong Jiuling sat on the sofa and talked happily, laughing from time to time, they must be talking about things that men understand.

Hong Jiuling already likes beauties, and often beauties of all skin colors are on his side, while Jiang Hai is a thief style, and the two may have a lot of common language together.

When the two saw Xiao Cheng walk into the living room, they both stood up, Hong Jiuling called the young master, and Jiang Hai respectfully called Xiao Cheng a senior.

Hong Jiuling seemed to see that Xiao Cheng's love was not very good, so he said that he had prepared a sumptuous dinner and asked Xiao Cheng if he would stay to share the dinner.

Xiao Cheng shook his head, drank a glass of wine, and said a few words to Jiang Hai, so that Jiang Hai could live in Heicheng and cultivate with peace of mind, and don't worry about other things, just improve his cultivation.

Jiang Hai is now serving him, and his future strength is naturally as strong as possible, there is nothing major in the near future, there is no need to worry about anything, just contribute when there is something.

Jiang Hai's awe of Xiao Cheng has now gone deep into his bone marrow, and he naturally has no objection to Xiao Cheng's arrangement, nodding yes.

"Young Master, I don't know what plans or arrangements you have for the next year?" Hong Jiuling asked respectfully.

At this time, Hong Jiuling was no longer the wolf in the morning, the wound on his face had subsided, and he was not much different from before, he was still a middle-aged man with a soft and calm face, and he spoke with the style of a leader.

"There are some plans, but they're not yet mature. Next year is the year of the Heavenly Pole, and many young disciples from various sects will enter the world to practice, which is a good opportunity.

My idea is that we might as well set up an auction house to collect spirit grass and refining materials, etc.

Of course, it is not easy to establish an auction house, you can take it step by step, first get a general auction house, and if it is feasible, then open an auction house. Xiao Cheng smiled faintly.

The idea was not improvised, and he pondered it for a while.

Heicheng is just a channel, and the way of operation is extremely simple, that is, people contact the scattered or minor cultivators in various places, and if there is anything that needs to be sold, Heicheng will assign people to transport the items to be sold back to Heicheng.

This operation is a bit inefficient, the risk is also very large, and the audience is relatively small, staying in the hermitage family and casual practice.

If a network of auction houses can be established, then Heicheng will change from passive to active, and every time the auction starts, there will be many cultivators who take the initiative to bring spirit grass, spirit stones, refining materials, etc. to the auction house.

In this way, the efficiency is greatly improved, manpower and material resources are saved, the danger of goods being transported is also reduced, and the audience is expanded.

In the year of Tianji, the outstanding disciples of various sects came out to practice, which was a good opportunity for publicity and development.

There are not no auction houses in the Xiuzhen realm, for example, the largest Feng Zihao auction house in the country, which was jointly established by the Feng clan and several sects.

However, the Fengzihao Auction House has no characteristics, and it is composed of the Feng clan and several sects, and if there are any good things, they have completed the transaction internally, and it is difficult to come up with good things.

Probably just stop at auctioning off a few spirit grasses and a few low-grade pills, and occasionally there will be a few 'good things' that have been picked up by several sects.

And if Heicheng can set up an auction house, it is naturally not these low-level things that can be auctioned, such as the Pei Yuan Dan in his hand now, he can auction it off, anyway, he can refine more.

In addition to Pei Yuan Dan, he could also reduce the aura concentration of the Yun Ling Pill, and then add some toner to turn it into a black inferior Yun Ling Dan to sell.

Of course, these alone are certainly not enough, but once an auction house is established, it can auction off the foundations first, and then bring the buyers' exchange items to auction, thus creating a virtuous cycle of snowballing.

With the development of the auction house, there will be more and more spirit grass refining materials and so on, and with these, more cultivators will be able to join, and the power will become bigger and bigger.

However, there is another difficulty in establishing an auction house, that is, there is a lack of strong people at this stage, and an auction house must have strong people in charge.

Cultivators are not people who talk about rules, nor can they be restrained by law, if an auction house does not have a strong person in charge, I am afraid that there will be a robbery.

Therefore, Xiao Cheng's idea is to make a small fuss first, establish a prototype of an auction house first, and then solve the problem of lack of strong people. The meal must be eaten one bite at a time, and the road must be walked step by step, and it is impossible to do it overnight.

After talking to Hong Jiuling about this, Xiao Cheng unexpectedly received an unfamiliar text message: "Someone is going to be unfavorable to you, please pay more attention to safety recently."

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~RS