In the hall, Master Mu's two masters and apprentices didn't look at Yu Fei again at all, and drank the tea that Nie Yun had made for them, and Nie Yun was also very unhappy when she saw Master Yu's face, but she didn't dare to say anything, she just secretly glanced at Yu Fei, which means that this old guy is really annoying!

Her action made Yu Fei snicker, this girl looks very naughty, Yu Fei originally wanted to make friends with Master Mu, so that it would be convenient for alchemy in the future.

But seeing him like this, I'm afraid there is no way to make friends, and a proud character like this will never become a friend, at most it is only based on interests.

"Let Master Mu wait for a long time!" After a long while, Nie Feng took two spirit grasses over, after all, this was very precious to him, and he kept it very secret when he collected it.

"Hmm!" Master Mu just hummed lightly, not polite at all, in his opinion, this was Nie Feng begging him for alchemy, so naturally he didn't have to give face.

The corners of Nie Feng's mouth twitched, and he quickly put on a smiling face and handed over a long wooden box: "Master Mu, please take a look!"

"Well, old man, take a look!" Master Mu nodded, and then took it.

Seeing that Nie Feng was still using such a delicate wooden box to collect the spirit grass he had exchanged for them, this made him want to laugh a little, isn't it just two spirit grass, as for it?

When Master Mu opened the wooden box, his arrogant face suddenly stiffened, and then he stood up from the chair with a swish, and quickly took out the spirit grass, put it in front of his nose and smelled it.

"This ...... This ......"

After smelling it, Master Mu's expression became very exciting, and he felt that he couldn't speak well, and Nie Feng, who saw this scene, felt very relieved, old guy, do you know that you are surprised?

"The best!"

After calming down for a while, Master Mu said this.

Then he looked at Yu Fei again, and his face became full of enthusiasm from the arrogance just now: "Yu ...... Yu Daoyou, is this really what you exchanged for the Nie family master?"

"Of course!" Yu Fei naturally didn't give him face, just shrugged his shoulders.

Master Mu didn't care about Yu Fei's tone, and continued to ask excitedly, "I don't know where you got these two spirit grasses from Daoyou?"

"No comment!" This time it was Yu Feigao who was cold, and the other party's reaction was something he had expected a long time ago, after all, Nie Feng's father and daughter also had this kind of expression before, but it seemed that Master Mu seemed to be more exaggerated.

Only then did Master Mu come back to his senses, and he was not embarrassed: "It's because the old man is too aggressive, I don't know if Daoyou Yu still has this kind of spirit grass?"

"Let's wait for Master Mu to refine the Tsukidan first!" Yu Fei said with a smile.

"Okay, okay, old man, let's open the furnace, it's ...... It's too surprising, the old man has never seen such a superb spirit grass, the old man promises, this furnace of elixir will definitely not be missed, the head of the Nie family, quickly give me the hundred-year-old wild ginseng, and then prepare a room for the old man, don't let people disturb. Master Mu said excitedly.

Nie Feng nodded, although his heart was refreshed, he still didn't dare to offend the other party on the surface, and said, "Okay, please come down with Master Mu!"

When Master Mu and the others left with Nie Feng, Nie Yun said happily: "Haha, it's so relieving, that old guy's expression just now is even more exaggerated than when I saw these two spirit grasses in the trading ground, hmph, let him look down on people!"

Probably because she was too excited, she sat down on the sofa next to her while she spoke, and then happily put her feet on the edge of the sofa armrest.

If it was usual, this action would be nothing, after all, it was at her own home, but in order to attract Yu Fei just now, she wore this bold outfit.

Yu Fei subconsciously looked over, and suddenly saw a piece of scenery under his clothes, and he was actually wearing only a small neen, black, very burning!

Probably noticing Yu Fei's gaze, Nie Yun suddenly reacted, sat up straight quickly, and his face was red to his neck, and then lowered his head, not daring to look at Yu Fei.

"Brother Yu, I suddenly want to cultivate, that ...... I won't be with you!" With that, she rushed to her room.

"Hehe, this girl is very interesting, compared to that Li Xue, she has the opposite character!" Yu Fei said with a smile when he saw her leave.

Thinking of that Li Xue, Yu Fei felt a little uneasy in his heart, after all, it was his first time, but he also had to admit that Li Xue would do whatever it took to get the Zhuji Dan.

Nie Yun is different, although she also has this purpose, she doesn't seem to be so open, so she thinks she's quite cute.

There is no way to eat dinner, after all, Master Mu came to alchemy, how can they have the reason to eat by themselves, for cultivators, it is nothing to take a few meals without eating, Yu Fei was at home before, and often only ate one meal a day.

At eleven o'clock in the evening, Yu Fei and the others, who were waiting in the hall, suddenly heard Master Mu's excited laughter: "Haha! The old man has refined countless pills, but he has never refined a high-quality pill, and today he finally let the old man refine it." ”

As soon as the words fell, Master Mu and his apprentice came to the hall, still holding a porcelain vase in their hands, their faces full of excitement.

"Master Wood has been refined?" Nie Feng also greeted him excitedly.

Master Mu handed him the porcelain vase in his hand and said, "It's been refined, and it's still a top grade, the head of the Nie family has seen it!"

The quality of the elixir is also divided into good and bad, like the spiritual root, it is divided into lower grade, middle grade, upper grade and best grade, and the general alchemist can only refine the lower grade and the middle grade, almost no one can refine the upper grade, let alone the best grade.

And the quality of the pill can also directly affect the cultivation level of the user, for example, if you use Zhuji Dan to impact the foundation building period, there is only a four or five percent chance of lower-grade Zhuji Dan.

Medium-grade Zhuji Dan generally has a probability of six or seven percent, and the top grade, can reach more than eighty percent, if there can be the best Zhuji Dan, it is 100% able to successfully break through the foundation building period level.

Therefore, under normal circumstances, even if there is a foundation building pill, as long as it is not of the best quality, there is no guarantee that it will be able to break through the foundation building period.

It is true that Master Mu has never refined a high-grade elixir, and even a medium-grade elixir is rarely refined, and most of the time it is a low-grade ......

And this time he was able to refine it entirely because of these two spirit grasses, if he was replaced by a more powerful alchemist, he would definitely be able to refine the best foundation building pill with these two spirit grasses.

"Sure enough, it's a top-grade Zhuji Dan, Master Mu has worked hard!" After Nie Feng finished reading it, he was also excited, and without saying a word, he quickly poured two out and handed one to Yu Fei and Master Mu.

A furnace of elixir down, basically three finished products, don't look at a lot, it's good to say if you succeed, if you fail, the spirit grass will all be wasted.

And the probability of alchemy failure is not low, if it weren't for the fact that this spirit grass was very good, maybe Master Mu might fail this time, but it's no wonder who is, all alchemists are like this, so in this way, the elixir is even more precious.

"The old man is welcome!" Master Mu took it directly, which was originally the reward agreed in advance.

Yu Fei also knew what Nie Feng meant, and at noon he also said that he would exchange Zhuji Dan for his wind mustard seed spirit grass, so Yu Fei didn't have a good idea to say anything, so he took it.

He took a look, this Zhuji Dan was only the size of longan, milky white, with a strong medicinal fragrance, very smelly, Yu Fei also sensed it, there was a very strong spiritual power in it.

"Master Nie, this spirit grass belongs to you!" Yu Fei did not lose his words, since he promised the other party, now he also took out the wind mustard seeds and handed them to the other party.

Nie Feng excitedly took the wind mustard seed, what happened today made him a little relieved, it was the top-grade Zhuji Dan, and it was this top-grade wind mustard seed spirit grass.

But he suddenly gave it back to Yu Fei: "Yu Daoyou, it's better for you to put it away, this Zhuji Dan should be regarded as a gift to you, after all, its materials are still you exchanged for me, and when you find the spirit grass seeds, let's exchange them for these spirit grasses of yours!"

Nie Feng's move made Yu Fei stunned for a moment, and he also understood that the other party wanted to win him over, so he gave up this wind mustard seed, but Yu Fei was not hypocritical, nodded and said: "Okay, the kindness of the Nie family master will be received below!"

The two of them were polite to each other, and Master Mu couldn't sit still, and the excitement just now had not calmed down, and he was surprised again: "Nie ...... Nie family master, what did you just say? Yu Daoyou, this tree is a wind mustard seed?"

Nie Feng nodded and said, "Yes, but Master Mu don't think about it, I already have a deal with Yu Daoyou." ”

"Yu Daoyou, can you show the old man?" Master Mu ignored Nie Feng and hurriedly asked Yu Fei.

Yu Fei was also stingy, and handed it directly to Master Mu, and after the other party took it, he opened the paper on the bread and swallowed his saliva fiercely: "Oh my God, it's this kind of spiritual grass with a strong aura, and it's also an almost extinct wind mustard seed, old man...... Old man, isn't he dreaming?"

Master Mu finally felt that it was not very real, and he quickly pinched himself, it hurt!

"Yu Daoyou, the old man still has a fresh earthy smell on it, is this what you planted yourself? I don't know what price Yu Daoyou has to pay to trade this spiritual grass? If you can, the old man is willing to make this deal with you. Master Mu said excitedly.

Hearing this, Nie Feng was reluctant, and hurriedly said: "Master Mu, this is not a trading place, I have already agreed with Daoyou that I want to make a deal with him." ”

"What if it's good, at least the thing is still in the hands of Daoyou, whoever can take out what Yu Daoyou wants, who is qualified to exchange it, Yu Daoyou, tell me what you want to change, the old man will try to satisfy you." Master Mu didn't give Nie Feng any face.

The corners of Nie Feng's mouth twitched, and his face turned red, but he didn't dare to say anything more, after all, he didn't dare to offend an alchemist, he was afraid that he would never find anyone to refine in the future, and besides, the alchemist himself was not easy to mess with.

They often make alchemy for others, it can be said that they have a wide range of friends, as long as the alchemist speaks, there will definitely be someone who will work for them, after all, everyone who wants to make alchemy will have to ask them, and they are more willing to do things for them and befriend them.

Although Nie Feng was reluctant to give up this wind mustard seed, he really didn't dare to compete with Master Mu anymore, but if he wanted to come back, he didn't have anything to get his hands on to exchange it with Yu Fei, since he returned the wind mustard seed to Yu Fei, let him be his own master.

But Yu Fei stretched out his hand and took the wind mustard seed back, and said with a smile: "I'm sorry, I don't want to exchange this spirit grass for you." ”