Liang Yu didn't take the first defeat to heart, he tried again after seriously reflecting on his various operational links, this time he adjusted the amount and speed of the soul power input into it, and the finished product was already much better than the first, but it was much worse than expected.

Next, Liang Yu practiced many more times, and Zuihou finally succeeded in getting the results he wanted. Looking at the bottles of different levels of potions in front of him, Liang Yu felt that he would try their effects for himself to see what the difference was.

After a short rest, Liang Yu began the practice of drug trial. As bottles of elixir entered his body, Liang Yu finally found that the effect of the half-pill pill was twice as strong as that of the ordinary liquid form.

Just as he was carefully savoring the difference in the effects between different levels of potions, Liang Yu suddenly found that he had already reached the peak of the sixth level, and under the stimulation of these potions, he was actually about to break through.

Liang Yu hurriedly sat down cross-legged, and took out some spirit stones to prepare to deal with the large amount of spiritual energy needed during the breakthrough process. Naturally, there was no suspense in the breakthrough that came naturally, but after half an hour, Liang Yu's aura realm successfully reached the seventh level of the spirit pill realm, and of course, those few spirit stones had also become useless.

After being promoted, Liang Yu once again devoted himself to the practice of refining the elixir, perhaps because of his experience, or because of the improvement of his realm, anyway, this time Liang Yu successfully refined a very satisfactory half-pill medicine-like elixir.

Next, Liang Yu refined several other elixirs one by one, some failed, some succeeded, and after about five or six days, all the new elixirs that Yao Lao gave him Zuihou saw the form of half elixir.

After doing this, Liang Yu came to Yao Lao again with his results. When the medicine elder carefully inspected the potions that Liang Yu had refined, he didn't say a word, stood up and walked outside. Seeing Yao Lao walking outside, Liang Yu followed without saying a word.

Soon, Yao Lao took Liang Yu to the front of the main hall, and then walked straight in. After entering, he did not stay in the main hall for long, but walked through the main hall and walked towards the peak.

After a while, Yao Lao came to a very small cave and stopped.

"Come in!" Just as Yao Lao was about to speak, a somewhat ethereal voice came from inside the cave. Then, the door of the cave opened automatically.

After entering the cave mansion, Liang Yu found that the feeling that Rong Qingzhen gave him was completely different from the last time. It was a feeling of being completely at one with his surroundings, and it was clear that his presence could be seen with his eyes, but he could not be perceived by his soul power.

"Congratulations to the master for advancing to the Thunder Refining Realm!"

"Congratulations to the master for advancing to the realm of thunder refining!" Liang Yu learned from it.

"Okay, you're all good, Yao'er has reached the fifth level, this little guy is even more powerful, less than twenty, right?" Rong Qingzhen said softly, but his voice was as clear as if it sounded in his ears.

"It's almost nineteen!" Liang Yu replied obediently.

"Yes, yes, there is a successor to Da Rong Feng!"

"Master, I brought Liang Yu over, there is a matter that needs to be decided by the master. Master, please take a look at these potions first!" As he spoke, the medicine elder respectfully held the potions refined by Liang Yu in front of Rong Qingzhen.

"Well, they are all half-pills, and the quality is good, it seems that your refining level has not dropped at all over the years. Rong Qingzhen nodded with satisfaction.

"Don't dare to deceive the master, none of these potions were refined by me, in fact, they are all the fruits of Liang Yu!"

"Oh!" Listening to Yao Lao's words, Rong Qingzhen couldn't help but look at Liang Yu carefully again, and Liang Yu suddenly felt as if he had been stripped of all his clothes at once, and everything was exposed to the eyes of others.

"Very good! Very good! I see what you mean, just let the little one stay!"

After hearing that Rong Qingzhen asked Liang Yu to stay, Yao Lao said goodbye and left.

After Yao Lao left, a portal suddenly appeared next to Rong Qingzhen's cave mansion, and then he told Liang Yu that what was kept inside was the various classics related to medicine refining that were left in the Shangqing lineage. Liang Yu can go in and read at will, but he can't bring it out, as a price, Liang Yu needs to refine some high-quality potions for the sect when the level reaches the requirements, if it is an elixir, it will be even better.

After Liang Yu thanked Rong Qingzhen, he walked into this secret cave where the books were stored. The scale of the library cave is not very large, but there are more than 100 pieces of jade in it.

In the following time, Liang Yu began to read them one by one. Due to the improvement of the soul realm, Liang Yu has almost reached the point of never forgetting it now, so although these things are not allowed to be taken out, he has memorized all the contents inside.

Most of the contents in these jade slips are the experience of the senior alchemists, and these things are still of great help to Liang Yu, and many of his confusions in the refining of potions have been solved. More importantly, when Liang Yu borrowed from it, he combined it with his own experience, so invisibly, his alchemy level was greatly improved.

In addition to these experiences, there were also some ancient recipes, and Liang Yu memorized all the contents of them, but he found that many of the medicinal materials in them he had never seen at all. Therefore, what makes Liang Yu more happy is that there is a piece of jade slip here that is dedicated to describing various medicinal herbs, and the content is much richer than that in the "Atlas of Materia Medica".

I don't know how much time has passed, anyway, Liang Yu has read almost all the jade slips in it. Just as he was about to leave, his eyes suddenly caught a glimpse of a half-sized jade slip scattered at the foot of a shelf where the jade slip was placed. Although this jade slip is only half, it looks more special than the other jade slips, that is, it actually flows with spiritual energy.

After Liang Yu saw this half of the jade slip, he couldn't help but pick it up and stick it on the door of his head.

After a while, Liang Yu's face couldn't help but show a smile of unexpected joy, he really got a good thing unintentionally.

What is recorded in this half of the jade slip is actually a very peculiar method of refining potions, more precisely, the method of refining pills, the peculiarity of this refining method is that the refiner does not need to have the strength of the Spirit God Realm to achieve the effect of divine refining.

However, it also has conditional requirements, that is, it needs a particularly high-level Danding, and if it is the Danding of the three major towns, it is the best. Seeing this, Liang Yu also understood that the half of the jade slip of weishenme would be abandoned. Shangqing Peak's Zhenzong Danding has long been lost, which means that this method is meaningless at all.

However, for Liang Yu, it was a different matter, as if it was specially prepared for him.

In addition, Liang Yu also found something different. Because Rong Qingzhen had told him that he couldn't take the things inside, he still had the idea of giving it a try, and was ready to put a piece of jade slip into the storage bracelet, but it seemed to be set up something, and he couldn't put it in.

Not only can't you fit it in a storage bracelet, but so is the storage space in your Tranquility belt.

However, this half of the jade slip was easily packed into the storage space of the Tranquility Belt. That's not all, what makes Liang Yu a little crying and laughing is that he just wanted to give it a try, but he didn't expect Zuihou to be self-defeating and had to be a thief.

Because, after this half of the jade slip entered the storage space, it actually took the initiative to run into the Shangqing Danding that was also in the storage space, and then disappeared without a trace. And the Shangqing Danding, which absorbed this half of the jade slip, has undergone a little change, that is, there are some more ancient characters on its three tripod feet.

However, Liang Yu didn't do anything and immediately took out Danding to see what was going on, because he was afraid of being discovered.

Seeing that there was really nothing left in the secret cave to let him learn, Liang Yu directly activated the transmission function of the secret cave and transmitted himself out of it.

After coming out, Liang Yu was still in the cave of Rong Qingzhen. And after Rong Qingzhen saw him, he nodded with great satisfaction again.

"Do you know how long you've been in there?" asked Rong Qingzhen with a kind smile on his face.