In the bright cave mansion, Yun Meng wore a pale yellow long dress, with a petite and cute figure, delicate and beautiful facial features, and a youthful atmosphere.

Yunyan is dressed in white, like a fairy in the dust, if a goddess comes into the world, elegant and noble, and has thousands of demeanors.

Although the two daughters are sisters of the same mother, their personalities are diametrically opposed. One is gentle and virtuous, the other is lively and active, but they have their own merits in their faces, and it is difficult to distinguish between them and them.

At this moment, Yun Meng looked at Ling Xian with a blank look and said coquettishly: "Master, my eldest sister and I have been at the peak of qi refining for a long time, do you think it's time to break through to the foundation building period?"

"That's right. Ling Xian laughed, tapped her forehead with his finger, and said, "You want me to refine Zhuji Dan, right?" ”

"Hehe, Shizun is really sharp-eyed, so I know that I can't hide it from you. Yunmeng smiled and sent a sycophant.

"Less flatter me. Ling Xian glared at her and said, "Didn't I tell you, you have to break through to the tenth layer of qi refining first, lay a solid foundation, and then break through to the foundation building stage." ”

"Master, it's not like you don't know that my talent in cultivation is not good, and I can't reach the Qi Refining Consummation Realm at all. Yun Meng pursed her lips, and a hint of gloom flashed in her beautiful eyes.

For any monk, the Extreme Realm is a dream, and she is no exception. Especially after Yunyan broke through to the tenth layer of Qi refining, the mood to reach the extreme realm became even more urgent.

However, no matter how much she tried, she was never able to break through. Gradually, she finally recognized the reality that she couldn't do it with her qualifications.

Therefore, she gave up breaking through to the extreme realm, and planned to directly ask Ling Xian for a foundation building pill to break through to the foundation building period.

"That's true. ”

Ling Xian sighed lightly, he had lived in the Yun family for three years, and he was very close to the two Yun Meng sisters, so he wanted to help the second daughter lay a solid foundation. However, he also knew that Yun Meng's talent in the Dan Dao was acceptable, but his cultivation qualifications were not excellent, and most of them had no hope of breaking through to the tenth layer of Qi refining.

"So, Master, you can refine a furnace to build the foundation. Yun Mengjiao laughed and shook Ling Xian's arm back and forth.

Ling Xian pondered for a moment and said, "Okay, let's refine a furnace." ”

"Great, Master, I knew you were the best. Yun Meng cheered, hugged Ling Xian, and didn't come down like a koala.

"Stop, come down. Ling Xian shook his head helplessly, moved his gaze to Yunyan, and said with a smile: "It just so happens that your foundation is almost done, take this opportunity to directly break through to the foundation building period." ”

"It's all up to the child. Yun Yanqiao's face flushed, she had originally planned to ask Ling Xian for a Zhuji Dan, but she was not embarrassed to say it.

After all, Ling Xian had already helped her, and she had helped the Yun family too much, so naturally she was embarrassed to continue to trouble Ling Xian.

"Okay, but the Tsukidan is different from other pills, if it can't achieve ten percent efficacy, it will definitely leave toxins in your body, which will affect your future path. Ling Xian sighed lightly, then was silent for a moment, making a decision that he was most unsure of since his debut.

He wants to refine the perfect Zhuji Dan, that is, the medicinal effect will reach ten percent!

Only in this way can Yunyan and Yunmeng be free of toxins in their bodies and go further on the road of cultivating immortals.

However, this is undoubtedly a difficult thing comparable to climbing to the sky, and it can even be said that it is almost impossible to do!

In the world of cultivating immortals, any alchemist has two major pursuits in his life, one is to ascend to the realm of a first-class great master, and the other is to refine a elixir with a medicinal effect of ten percent. It can be said that if a Dan Master refines ten percent of the elixir, then it can be said that he will die without regrets.

However, the entire immortal cultivation world knew that the latter was several times more difficult than the former!

It is possible to reach a great master of a first grade, but it is difficult to reach the elixir of ten percent!

Even if it is the lowest-grade elixir, it is difficult to achieve ten percent medicinal efficacy, let alone the most difficult of the eight-grade elixir to refine?

However, Ling Xian made such a decision. Let's not talk about whether he can refine it, just talking about this courage, it is by no means comparable to ordinary people.

"Just take this opportunity to test my Dan Dao attainments. If it is successfully refined, it will be given to the master as a gift, and he must be happy when the old man wakes up. Ling Xian smiled faintly, he believed that if he could refine ten percent of the Zhuji Dan, he would definitely smile at refining the firmament.

That's the perfect elixir with 10% medicinal effect!

If Ling Xian refines it, it means that he has reached the extreme in the realm of the Eight Rank Dan Master, surpassing any Eight Rank Pill Master in the world, how can he not be satisfied with refining the sky?

For an alchemist, refining a ten-percent elixir is a lifelong pursuit, and if it is refined by a disciple who teaches it, it is also an extremely gratifying thing.

"Childe, you won't be the Tsukidan who plans to refine ten percent of the medicinal potencies, right? A trace of hesitation flashed on Yun Yanqiao's face, and she saw Ling Xian's plan.

"That's right, only the perfect Zhuji Dan can allow you to go further on the road of cultivating immortals. Ling Xian chuckled and nodded, thinking of the Dan Immortal who had fallen into a deep sleep, and secretly said in his heart: "Moreover, I also need to perfect the Foundation Dan and give a satisfactory answer to the old man of Shizun." ”

"This ......"

Yunyan's mouth opened slightly, his eyes were full of shock, he didn't expect Ling Xian's heart to be so big.

Yun Meng's face was also full of incredulity, as an alchemist, she knew far more than Yun Yan. She knew very well how difficult it was to refine a ten-percent medicinal elixir.

Although she knew very well that Ling Xian's attainments in the Dan Dao had also seen him refine the Eighty Percent Spirit Pill with her own eyes. But between ten percent and eighty percent, the difference is not just two points, but countless times!

As long as you have enough understanding and are willing to work hard, there is every hope that it will be refined. However, 100% is flawless, and that is harder than climbing to the sky!

It's almost impossible!

Therefore, she didn't believe that Ling Xian could refine it.

This is also normal, no monk will believe Ling Xian, they will only scold him for being arrogant.

There is no way, who made the elixir with ten percent medicinal effect too ethereal and too difficult to refine, and it has already become a legend in the world of cultivating immortals.

"Master, are you sick, how can you talk nonsense? That's a ten-percent medicinal Tsukidan, don't be stupid, just refine a few seventy or eighty-percent medicinal ones with peace of mind. Yun Meng persuaded him, afraid that Ling Xian would go mad in order to refine the Ten Cheng Pill.

Hearing this, the corners of Ling Xian's mouth raised, knowing that the two girls didn't believe him, he didn't bother to explain.

In fact, he himself has no bottom.

After all, it was a perfect Zhuji Dan that had not appeared in the world for thousands of years, and even if it was a first-grade great master, he didn't dare to say that it would definitely be able to refine it.

However, you always have to try to know the result.

If you don't even dare to think about it, if you don't dare to do it, then there is really no hope.

"If you can refine it, you'll know if you try it. Ling Xian smiled faintly and asked, "Are you ready to refine the elixir of Zhuji Dan?"

"Ready. Yunmeng replied.

"Then let's go, go outside to refine. ”

Ling Xian smiled, turned around and walked out of the cave.

No matter how difficult it is to refine the Perfect Tsukidan, he has to give it a try!

For the future of the Yunyan and Yunmeng sisters, in order to test his Dan Dao attainments, and in order to make the refining sky feel gratified, he must open the furnace to refine!

If he fails, he will only take a little blow at most.

But if he succeeds, then he will do another act against the sky!

The whole world will be shocked!