Most of the people had left after work, and except for a few people in the Dan Hall who were still studying in their own Dan room, it was already quiet.

Su Ningyu did not participate in the competition, but concentrated on improving the grade, he needed to enter the ranks of the first grade Dan in a short period of time.

Everyone's Dan room has a shielding formation, as long as it is activated, people outside will not be able to see the things inside their Dan room, although this shielding formation needs to be done at their own expense when it is activated, everyone will still use this method.

Naturally, this shielding formation was activated in Suning Yu's Dan room, and sitting in the Dan room, Suning Yu once again recalled the newly deduced alchemy formula that had been improved many times for a while, and then began the refining process.

In fact, during this time, Su Ningyu almost sold the pills he had refined on the market, and he didn't have a single pill in his hand, his purpose was very clear, and he had to use the money to smash out his vitality pill replacement formula.

The most in the Dantang is the spirit grass, the high-grade spirit grass is not easy to get, but there are a lot of this cheap spirit grass, after Su Ningyu used the internal price to buy a lot of spirit grass for the new formula, it is now a pile in front of him.

Fail...... Deduction...... Fail...... Re-deduction......

This process is going on and on.

It wasn't until the sixth refining that a pill of Cheng Dan appeared in front of Suning Yu's eyes.

It's done!

Looking at the crystal pill, a smile appeared on Su Ningyu's face.

After spending so many days of research, it can be regarded as getting this new elixir formula out.

With the old formula, the cost of a furnace is almost 10,000 yuan, and many people only have one or two pills of Cheng Dan in a furnace, if a furnace is refined, it is equivalent to a loss of 10,000 yuan, and for ordinary people, they can't stand the method of refining.

After Su Ningyu replaced it with a cheap spirit grass, he roughly calculated the cost, the cost of the spirit grass required for such a furnace of elixir was about eight hundred yuan, as long as one pill was successful, then the profit would be amazingly high.

There is room for improvement!

Su Ningyu deduced again.

The second furnace.

This time it took much less.

Half an hour later, another furnace of elixir was refined.

Three grains, and one of them has reached the second grade!

Well, you can also increase the medicinal properties a little more, if it is increased, I believe it will be better!

After deducing for a while, and after making a prediction, Su Ningyu adjusted the formula.

When the furnace was turned on again, half an hour later, a furnace of elixir exuding a strong medicinal fragrance appeared in front of Su Ningyu's eyes.

Eight grains!

This Cheng Dan rate is a bit amazing.

When you look closely, one grain has reached the top grade, four have reached the top grade, two grains have reached the middle grade, and one grain has the lower grade.

Thinking back to the situation in the market, the price of each Vitality Pill on the current trading market is directly 10,000 yuan, 15,000 yuan for the middle grade, 20,000 for the top grade, and 30,000 for the best product.

Of course, money is really not a big deal for Su Ningyu now, what he needs is to develop here.

After refining several furnaces of pills, Su Ningyu walked out of the pill room.

Looking towards several Dan rooms, Li Shenghai's Dan room still has light, and in addition, Qiao Xiaoli and Guo Lin's Dan room also has light.

When he was watching, he saw Qiao Xiaoli walking out of it.

There is a bath room in the Dan room, and it can be seen that Qiao Xiaoli has bathed and redressed up, looking more youthful and beautiful.

Although the appearance of the cultivator cannot be seen, as a member of the Dantang, Su Ningyu still clearly knows the age of these people, because most of the older people have been transferred, and those who remain are really some young people, Qiao Xiaoli is now twenty-three years old, which is naturally a few years older than Su Ningyu, but it is not much.

"Xiao Su, haven't left yet?" Qiao Xiaoli asked with a smile.

"This is leaving. ”

"Let's go to dinner. ”

For them, eating, drinking and having fun is still their favorite thing to do.

"Little Joe, I'll go too. Guo Lin also walked out at this time, and it is estimated that he has been observing Qiao Xiaoli's situation all along.

Su Ningyu observed that Qiao Xiaoli's face showed a sense of displeasure, but she quickly disappeared.

At night, the streets are brightly lit and there are many people visiting the night market, making it an urban scene.

"You arrived from Haixin Island, what is the situation of your Haixin Island, is it so lively?" Qiao Xiaoli looked at Su Ningyu and asked.

"I've always been in a small place in the township, where it's not so lively, and although I've been to a big city, it's also a city that has been revived and evolved in all aspects, and it's not so prosperous. Su Ningyu thought back to the situation on the earth, and felt that it was not too different from here.

"Well, I heard that after receiving a large amount of aura, life on Haixin Island is evolving rapidly, and many people are studying what happened there. ”

"I heard that the sea water in Haixin Island is evolving faster, they got some of the latest evolution liquid and put it in, there will be high-level demon beasts generated in it, and it seems that humans are going to suffer!" Guo Lin said at this time.

"The latest evolution liquid?" Su Ningyu looked at Guo Lin.

"Well, the new Dan formula researched by the Great Dan Master needs a large number of marine evolutionary life as materials, and this time it is to greatly increase the evolution speed of marine life, so what kind of changes will happen to the ocean of Haixin Island, even our researchers here can't say clearly, which is one of the reasons why Haixin Island will be included in the management. ”

Su Ningyu's face has become ugly now, and he knows in his heart that if this is the case, there will inevitably be a super powerful kraken in the earth's ocean, and then the human race will definitely not be able to deal with it, and if it is not done well, it will be the end of extinction.

"Don't worry too much, after being put under management, we will definitely protect humanity. Qiao Xiaoli persuaded her.

"I can't think of it this way, being included in management is not something that can be completed in a short period of time, I remember that there are records that Haixin Island has had many civilization processes, and many times it has been because one kind of life has evolved too quickly and destroyed another kind of life. ”

"There's no way around that, anyway, even if you want to go over now, you can't do it, besides, even if it's over, what can you do, with our cultivation, there is no way to solve the problem at all. ”