Time flies, three years in the blink of an eye.

When the sun was setting again, Xiao Yu was still immersed in the comprehension of Dan Dao, although in the past three years, he had learned most of the alchemy skills on the master's body, but the master explained to him some skills that he had never been exposed to.

He comprehended more things this time, as the saying goes, the more things you learn, the less you will find that you know, Xiao Yu is like this now, as the door of Dan Dao unfolded in front of him little by little, he found that there were more things in that door that he longed to know but was difficult to touch, and he was now completely submerged in the sea of Dan Dao and could not extricate himself.

Elder Xu looked at the sky for a moment, then woke up Xiao Yu and said to him: "Apprentice, what Master has learned in a hundred years is not an overnight achievement, you are still young and have a lot of time, don't be in a hurry, your daughter-in-law must be waiting for you at home, wait for you in a hurry, go back and slowly enlighten!"

Xiao Yu bowed and saluted and said: "Master's mastery is the work of heaven and earth, to be able to get the true inheritance of the master, the disciple is inscribed in the five, and he is reluctant to slack off for a moment, how can he not practice hard!

After Xiao Yu returned to the cave, Xiao Jiumei was already waiting at the door, and when she saw Xiao Yu coming back, she hurriedly ran up and grabbed Xiao Yu's hand, her eyes blinked, as if she had something to say, of course Xiao Yu knew what she was going to ask, so she whispered: "Don't worry, I'm telling you when I get home!"

After returning to the alchemy room, Xiao Yu sat on the **, Xiao Jiumei knelt beside him like an obedient kitten, Xiao Yu smiled bitterly: "What are you doing so close to me, it's almost on me!" The little girl rolled her eyes and said, "Fool, you forgot? Don't you want to tell the secret? You are not afraid of being heard by others!"

Xiao Yu thought about it, it was better to be careful, so he leaned in Xiao Jiumei's ear and told her about the realm of selflessness and the power of the origin carefully, the more she listened, the more frightened she became, the more excited she became, and Zuihou didn't know whether she was scared or excited, and her body trembled a little.

After zuihou heard the whole thing, the little girl cheered and then whispered: "I really picked up a treasure now, I have to treat you well in the future, I can't run away with you, little baby!" Xiao Yu is also funny, what is this!

Three years ago, Xiao Yu already knew the mystery of the realm of selflessness, but he didn't tell Xiao Jiumei, he thought it was not time to tell the little girl, now that three years have passed, the little girl has grown up, she knows what she can and can't say, and it doesn't matter if she tells him this secret, so she came back and told her a big secret before going out today!

In fact, Xiao Yu was too cautious, when he participated in the alchemy talent test, several elders had already discovered Xiao Yu's secret, but at that time, Elder Xu had already received Xiao Yu under his door, even if they knew, they didn't dare to offend Elder Xu, and they couldn't pull their faces to ask to cultivate by Xiao Yu's side, so Xiao Yu always thought that this was a great secret.

Xiao Yu didn't pay much attention to the crazy girl around him, he knew that this girl would not be quiet if she wasn't crazy for a while, so he continued to participate in the Dan Dao by himself, and soon entered the realm of selflessness, and the little girl on the side was crazy enough, seeing that Xiao Yu had entered the realm of selflessness, he moved his ** to Xiao Yu's side, and deliberately placed it very close to Xiao Yu to start cultivating.

The little girl is cultivating by Xiao Yu's side and entering the realm very fast, and she can also transform her body at any time, Xiao Yu has also benefited a lot in the process of comprehending the Dan Dao, and Elder Xu's longevity has increased dramatically, so Xiao Yu has always lived a life of two points and one line in the cave and the alchemy hall, the emperor lives up to his wishes, after three years of hard work, Xiao Yu finally comprehended and combed all the skills that the master showed when he was alchemy, and reached the level of integration.

On this day, Elder Xu came to Xiao Yu's side, handed a delicate little Qiankun bag to Xiao Yu's hand and said: "Apprentice, you have improved a lot in alchemy during this time, it's time to really refine a Dan to practice, here are the alchemy materials and Dan recipes, you are here to refine the Dan, and come to find a teacher after the Dan is completed!" After finishing speaking, he turned around and went to the practice room in the alchemy hall to practice.

Xiao Yu took out the medicinal materials and pills in the Qiankun bag, what the master wanted to refine by himself was an ordinary first-grade pill, Xiao Yu didn't care too much, so he opened the furnace for alchemy according to the material ratio and alchemy steps on the pill.

Xiao Yu's current soul realm was suppressed to the early stage of foundation building, because the master gave him the bottle of Pregnancy God Pill at that time, so no one would doubt him if his soul realm was beyond his cultivation now, in fact, he didn't take the pill at all, because there was enough soul realm as a guarantee.

The alchemy process was exceptionally smooth, Xiao Yu had already refined all the materials into pills in half a day, and the success rate reached ten percent, which had to be said to be a big achievement, Xiao Yu was still satisfied with himself for a while in his heart.

But when he checked the elixir, he found that although the elixir was successfully refined, the quality of the elixir was very unsatisfactory, that is, it could barely be used, compared with the elixir refined by the master, the elixir he refined was simply garbage, Xiao Yu was depressed for a while, and then began to reflect on his mistakes, but he couldn't figure it out, and Zuihou had no choice but to find the master to solve his doubts.

Coming to the master, Elder Xu looked at Xiao Yu's sullen appearance, as if he had expected it a long time ago, smiled and said, "Take the elixir to the teacher!" Xiao Yu handed the elixir to the master, and then said bitterly: "The disciple is stupid, I don't know why the elixir is so good, and I ask Master, your old man, to solve the confusion of the apprentice!"

Elder Xu picked up the pill and read it again, but said: "Not bad! It's really good! It's not in vain to teach the teacher! In this way, the teacher will give you twenty pills, of which ten pills are ancient prescriptions that have been handed down, and the other ten pills with red marks are the pills that have been changed for the teacher.

After finishing speaking, he handed over the Dan Fang to Xiao Yu, and he cultivated on his own, although Xiao Yu was anxious to know what was wrong, but seeing the master explain like this, there must be a reason in it, so he also accepted the Dan Fang and returned to the alchemy room to participate in the Dan Fang, and did not linger by the master's side.

Xiao Yu returned to the alchemy room, took out all the pills that the master had given him, distributed them one by one according to the way of comparison, and then began to comprehend the pills and find out the differences between the two pills.

The difference between the Dan Fang was still obvious, Xiao Yu had already figured out the difference without much effort, but he knew that this was definitely not something that the master wanted to comprehend by himself.

It seems that Master wants to dig deep into the internal factors that exist in this difference, that is, there is a hidden Dan Dao theory in it.

Xiao Yu re-remembered all the Dan prescriptions in his mind, especially the differences between each Dan prescription and focused on memorizing, and then closed his eyes and began to comprehend, the materials recorded in these Dan prescriptions have almost not changed, even if there are, it is because some medicinal materials are now difficult to find, and some other medicinal materials are used instead, and the purification of the elixir essence is not the slightest difference, it is exactly the same.

The difference lies in the process of fusion between the essences, some of these pills are in different order of fusion, some are different in the time of fusion, and some are different in the method of fusion, but it is because of these differences that there is a huge difference in the color of the pills, what kind of truth does this exist!

Xiao Yu was now unable to comprehend even if he entered the realm of selflessness, as if his color had dimmed today, Elder Xu sent him back again.

Xiao Yu returned to the cave in a daze, and without saying a word, he got into the alchemy room, Xiao Jiumei tasted the sweetness, and now she doesn't need to call her, when she sees Xiao Yu coming back, she will run to Xiao Yu next to Xiao Yu with her arms and start practicing.

Xiao Yu practiced like this for two days, one day to comprehend the Dan Dao, more than twenty days have passed, but he still doesn't have the slightest clue, this is the result of he hasn't tried it for a long time, and he has a little frustration in his heart.

On this day, after Xiao Yu had no clue about Dandao all night, he sat there alone for a while, but found that Xiao Jiumei was holding a book there with relish.

Xiao Yu came to Xiao Jiumei's side and asked, "What are you looking at! So serious, is it a true story or an ordinary script!"

The little girl pouted and snorted and said: "I have no conscience, can I only look at those things that fool children! Now that your alchemy has also made some achievements, you will definitely need a lot of medicinal materials when you refine the pill in the future, and you will not have time to buy it at that time, of course I will do it for you, and I will also familiarize myself with the medicinal properties and prices of the elixir while I have time now, so as not to be able to help you when I get it!"

At this time, Xiao Yu noticed that what the little girl was holding in her hand was a book introducing the elixir that the sixth senior sister gave them last time, this book Xiao Yu had already read backwards, Xiao Yu reached out and stroked the little girl's hair, and she didn't bother to continue reading, because she also knew that this was a way for Xiao Yu to express her liking.

However, after Xiao Yu listened to the little girl's words, his heart was slammed for a while, and then hahadaxiao got up, picked up the little girl hard, and ran around the house, his strange behavior startled the little girl, and then remembered that it may be that the problem that has been bothering him these days has been answered, otherwise he would not be happy to be like this, so Xiao Jiumei did not sweep his sex, and let him run around with him.

Xiao Yu ran for a while before stopping, put down Xiao Jiumei and kissed her fiercely on the face, and then said inexplicably, "Your little daughter-in-law is really good!" and then ran to the alchemy room alone.

Xiao Jiumei blushed and scolded in a low voice: "Bad boy!" and then grabbed the ** beside her and followed.

Xiao Yu did have a clue, it turned out that Xiao Jiumei's words just now reminded him that he had been troubled recently, and he felt that he had ignored some important things, and when he heard the little girl say about medicinal properties, he remembered that the thing he had been ignoring was medicinal properties.

Medicinal properties are the most basic things of medicinal materials, and they are also the things that are most easily ignored when there is a pill prescription, and the reason why the master will be much better after modifying the pill prescription is because the master has noticed the medicinal properties, and the deeper truth of the medicinal properties is the mutual growth and restraint of the five elements.

The reason why the master changed the order of fusion was because there were five elements of medicinal properties in the original order, so the medicinal properties would be consumed, and the pills were naturally not in good condition, and now he finally understood that what the master wanted to understand was the way of the five elements of medicinal properties in the fusion process, and after understanding this, Xiao Yu felt unusually comfortable.