On a desert island, in Liu Cheng's shelter.

It took more than three hours for Liu Cheng to successfully bring back a certain amount of herbs that were effective in treating wind and cold, and of course, he also brought back a body of mud by the way.

After all, it was after a heavy rain, even if Liu Cheng was barely a novice in the jungle, it was inevitable to bump and fall a few times when going out in this kind of weather, but fortunately, the herbs were successfully collected.

However, collecting the herbs is not easy, but it is actually only the simplest part of Liu Cheng's task.

The next step is the most difficult step, and it is also the biggest test for Liu Cheng, if Liu Cheng can't refine these herbs into effective potions, then Liu Cheng will be useless even if he brings back more herbs.

Liu Cheng, who understood this deeply, didn't even remember to clean the mud on his body.

After returning to the shelter, checking the man's situation and making sure that the guy was fine, Liu Cheng simply ate something and focused on refining medicine.

For the matter of refining medicine, the first thing Liu Cheng had to do was not to deal with herbs, nor to make a fire to burn firewood, but to think of a recipe first.

After all, refining medicine is a delicate job, and it is impossible for Liu Cheng to throw everything away, just make a fire and boil it up, in that case, the probability of failure is almost 100%.

In terms of the formula, Liu Cheng was thinking about it when he was collecting medicine, and he already had a preliminary idea.

After returning to the shelter, Liu Cheng deliberated repeatedly, and after making sure that there was no problem with his idea, this guy began to refine.

While filling a pot of water with a porcelain basin and boiling it on the fire, he simply dealt with the herbs that needed to be used, mashed as much as possible, and removed the parts that should be removed.

Since what Liu Cheng was refining was just an ordinary medicine of wind and cold, this kind of medicine was only an entry-level medicine at most, and the time required for this medicine was not very long.

Light the fire, put the herbs in according to a certain order, and in about half an hour, Liu Cheng's first pot came out, and after it was done, Liu Cheng immediately threw it over as a [Pill Identification].

[Ding, you have succeeded in using the skill [Pill Identification]! 】

At the same time as this system prompt appeared, Liu Cheng saw several rows of information when he looked at the pot of medicinal soup.

Pill Name: ???

Dan pharmaceutical grade: semi-finished product

Description of the elixir: This is a semi-finished medicine refined by an alchemist with half a bucket of water, which has a certain effect of treating wind and cold, but please be cautious when taking it, because it is very likely to aggravate the condition of the person taking it, so that the person who takes it will return directly to the west.

When he saw this information, Liu Cheng's face darkened, and it was obvious that his refining this time ended in failure.

Fortunately, Liu Cheng was mentally prepared early on, and a failure did not hit Liu Cheng.

After summarizing the reasons for the failure, re-deducing the Danfang he designed, and repeatedly making sure that there was no problem, Liu Cheng took out the medicinal soup from the porcelain basin and poured it out, and came back to start a new round of refining after washing the porcelain basin.

After another half hour or so, Liu Cheng's refining was completed again, but this time, Liu Cheng's brows were already furrowed before he used the [Pill Identification], and it was obvious that he had no hope that his refining would succeed this time.

Then, Liu Cheng's [Pill Identification] was thrown down, and the attributes of the half-finished product came out, and the results proved his conjecture.

This time Liu Cheng didn't hesitate much, and after Liu Cheng, who already knew that he was wrong, cleaned up, he immediately started his third attempt.

This time, Liu Cheng's face had a hint of confidence.

From the previous two refining medicines, Liu Cheng thought that he had found the best pill formula, and this time he would definitely be able to refine this elixir.

With this kind of self-confidence, Liu Cheng's spirit was highly concentrated, and all his attention was focused on the pot of medicinal soup in front of him.

Under Liu Cheng's careful care, he quickly helped half an hour to pass again, and as soon as he was sure that his medicinal soup was completed, this guy couldn't wait to throw the [Pill Identification] up.

However, as soon as the elixir was identified, Liu Cheng was directly dumbfounded, because this time he once again ended in failure!

Liu Cheng didn't expect that it was just a medicine to treat wind and cold, and it was so difficult.

He had already used the most optimized method according to the medicinal properties, and he should have succeeded, but he didn't expect it to end in failure, which made him very incomprehensible.

"What went wrong? The unilateral side I designed should be no problem! Judging from the properties of those herbs, why did this optimal Danfang fail? ”

Liu Cheng was puzzled at this time, but due to lack of time, he could only think about it while starting the fourth attempt, intending to think and observe in practice.

It's just that the first three times, especially the third time, were full of confidence and ended in failure, so Liu Cheng was a little distracted at this time, and accidentally took an extra herb into it when placing the herbs.

By the time Liu Cheng reacted, and it was too late, the flavor medicine had already melted in, and you didn't need to look at this situation to know that this pot of medicinal soup was wasted again.

If you are an ordinary person, maybe you should have poured out the medicinal soup at this time, but Liu Cheng is different.

Liu Cheng's temperament is very stubborn, he is not the kind of person who gives up lightly, even if he accidentally puts one more medicinal herb into it, he has no idea of giving up this pot of medicine.

He began to think about how to remedy it!

Originally, Liu Cheng was just reluctant to remedy this pot of medicinal materials and wanted to remedy it as much as possible, but when he began to think about how to remedy it with more medicine, Liu Cheng found that he seemed to have inadvertently opened up a new way of thinking.

Originally, his unilateral prescription was designed with the optimization of medicinal properties, but he did not take into account the problem of primary and secondary, and almost all the drugs in his original Dan prescription were only the main one, and the problem appeared here.

Although Liu Cheng was an otaku before the crossing, he watched various TV novels and anime, and although he did not have an in-depth understanding of medicine, he had also heard some fragmented information.

Among them, Liu Chengcheng knew that there was a distinction between primary and secondary monarchs and ministers in a pair of traditional Chinese medicines, but Liu Cheng's side medicine did not, perhaps because of this reason, he couldn't even configure a simple medicine for the treatment of wind and cold.

After figuring this out, Liu Cheng's eyes suddenly lit up.

He began to revise his original design of the Danfang, and began to add other things to that pot of medicinal soup, and at the same time, his mind was constantly thinking about the medicinal properties of the various herbs he calculated.

At this time, he had a feeling of epiphany, as if he had realized the truth of some alchemy.

However, under his toss, half an hour later, Liu Cheng's [Pill Identification] still gave Liu Cheng the judgment that he had failed to refine the medicine.

Only this time, Liu Cheng didn't care about this defeat judgment at all, because he was confident that he would succeed in practicing the finished product for the fifth time.

Sure enough, after another half an hour, when Liu Cheng finished refining the fifth medicinal decoction, a system prompt sounded, and this time he succeeded......