"This elixir, Senior Brother Zhou is not a simulated Thunder Tiger Inner Dan." Xu Feng looked at the elixir in his hand in shock.

In the Dan Dao, using the spirit beast inner pill or essence blood into medicine is considered to be the most advanced operation of the spirit-level alchemist.

Because the spirit beast inner pill is different even if it is the same kind of spirit beast, this makes alchemy extremely difficult.

The most important thing is that if you want to use the spirit beast inner pill as medicine, you must use the inner pill taken out within a month to ensure that the inner pill spirituality is not dispersed.

The Tiger Jiao Pill that Xu Feng refined in the Dan Dao competition was to use the spirit beast inner pill as medicine, and the most important reason why he could practice this pill was that it was in the treasure house.

"Senior Brother Xu's eyes are like a torch, but at present, this elixir is not mature, and I need to study it for a while."

"If Senior Brother Xu is willing, we can study together, and when there are results, we will distribute them according to their contributions."

Zhou Minghe invited, and when Dan Dao was sparring, he saw that the junior brother in front of him was not inferior to himself in the Dan Dao realm.

"We can't ask for anything from studying together, but Senior Brother Zhou shouldn't talk about rewards." Xu Feng shook his head and said.

"It's my villain." Zhou Minghe said and took out four jade slips and handed them to Xu Feng.

"This is my perception of the Essence Blood Cheng Dan and Dan Cheng Ling Dan during this time, Senior Brother Xu can take it back and take a look, and come directly to Xuyun Peak when you need to experiment."

"I got a quota of 100,000 immortal crystals from Xiao Hei, which is specially used for research, and I can use it as much as I want, if it is not enough, I will find Xiao Hei again."

Xu Feng looked at Zhou Minghe's eyes and admired him very much.

What is the pattern, what is the vision, and what is the big brother.

At this moment, Xu Feng felt that Zhou Minghe would definitely be the leader of the Primal Holy Land Dan Dao lineage in the future.

"Don't look at me like that, I'm also selfish, and I want to use you to make this research faster."

Zhou Minghe took out a life water elixir from the jade medicine box, put it into the boiling tea, and rebrewed a pot of tea for Xu Feng.

"It will live up to Senior Brother Zhou's expectations." Xu Feng said seriously.

"I've asked Xiao Hei to give you permission, come directly when you need to experiment, and ask Xiao Hei directly if you don't understand anything." Zhou Minghe instructed.

Xu Feng nodded.

In the Xu family's compound, in the cultivation room, Xu Feng held a jade slip and carefully comprehended it.

The expression was sometimes puzzled, sometimes realized, and after Xu Feng had read all the contents of the four jade slips, Shen Nian entered the world of mountains and seas and beasts.

Although only divine thoughts can't be cultivated, when you think about something more, you can still use the mountain and sea divine beast world.

"It is absolutely feasible to use Dan to transform essence blood and replace Inner Dan with Dan, but the materials of Cheng Dan need to be selected in a good proportion."

"It's even harder than recreating Danfang."

As he entered the world of mountains and seas, a lot of inspiration about this aspect bloomed in Xu Feng's mind.

Taking advantage of the inspiration, Xu Feng hurriedly deepened all these thoughts in his memory.

The next day, Xu Feng went to the Taichu Holy Land again, Xuyun Peak.

Under the leadership of Xiao Hei, he came to a small world in a secret realm.

"Little Black, Phoenix Spirit Grass, Baisheng Flower, Two Thousand Years of Blood Lotus ......"

As a series of materials burst out, a teleportation array appeared not far from Xu Feng.

One by one, the reported materials emerged from the teleportation array.

took out the fine treasure alchemy furnace, and Xu Feng began to experiment.

An hour later, a furnace can form the elixir of the phoenix's essence blood.

"The purity is higher than Senior Brother Zhou's spirit pill, but it can still only refine the Phoenix Blood Pill, which cannot meet the requirements of the Little Phoenix Nirvana Pill." Xu Feng looked at the pill in front of him and thought about it.

"This Danfang still needs to be changed, and the concentration needs to be raised."

"Xiao Hei, is there any phoenix blood grass planted in the sect?"

The Primal Holy Land Dan Dao is in the same vein, and I don't know how many secret realms there are for cultivating elixirs alone, so it can be said that as long as they are elixirs that can be planted, there are almost all of them.

"Yes, but it's all watered by the blood of the mongrel phoenix."

In the teleportation array, two phoenix blood grasses then came out.

So, Xu Feng sat in the secret realm of the experiment and began to reconstruct the Danfang.

The reason why Xu Feng was keen on this was precisely because if he controlled the elixir to replace the inner pill, he would have a way to refine many of the elixirs that were already outstanding.

And those elixirs may have an exponential increase in combat power.

At this time, Zhou Minghe came to the small world of the secret realm.

"Senior Brother Xu, do you have any ideas?" Zhou Minghe asked with a smile.

Xu Feng handed over the elixir he had refined.

"If the concentration is a little higher, maybe it can replace the Phoenix Essence Blood to refine the Little Phoenix Nirvana Pill."

"So I'm now trying to find a way to increase the concentration of this Phoenix Essence Blood Spirit Pill, if it can be achieved, the Little Phoenix Nirvana Pill can be refined in batches." Xu Feng said.

"If that's the case, Senior Brother Xu should make a big contribution."

"Xiao Hei promises that if he can succeed and the cost is relatively low, he will reward 100,000 immortal crystals."

"If the spirit pill is used instead of the inner pill to develop a stable function and refine the spirit pill of various divine beasts, you will be rewarded with 150,000 immortal crystals."

"The things I've researched now are just scratching the surface, and they are far from meeting Xiao Hei's requirements."

"If it can be done, we will score this immortal crystal according to the contribution value, after all, it is not a decimal." Zhou Minghe patted Xu Feng on the shoulder.

At this time, Xu Feng had only one thought in his mind, that is, 250,000 immortal crystals, and if he only divided half of them, he could also revive the Nine Palace Jade Toad.

Xu Feng's eyes burned with raging fire and looked at Zhou Minghe.

"Senior brother, leave it to me!"

"Okay, it just so happens that I'm going to go out during this time, and this research will be handed over to my junior brother."

Then the two exchanged ideas with each other.

"Senior brother, don't worry, if I can't meet Xiao Hei's standards, I won't be out of this secret realm." Xu Feng said with a firm look in his eyes.

"I believe that Senior Brother Xu can succeed."

Zhou Minghe nodded and left.

Xu Feng was left alone in the small world of the secret realm of the experiment.

"Little Black, Phoenix Spirit Grass, Wind Blood Grass, Alienated Fruit, Heavenly ......"

Xu Feng began to adjust the pill recipe again and again, and the purity of the elixir that he had refined to replace the phoenix essence blood was getting higher and higher.

Three months later, Xu Feng refined a low-profile version of the Xiaofeng Nirvana Pill.

The effect is only sixty percent of the normal Xiaofeng Nirvana Pill.

"Xiao Hei, am I up to the mark?" Xu Feng asked habitually.

"If you can't reach it, then your improved Danfang is very valuable, and if the research ends here, you can reward 10,000 immortal crystals." Xiao Hei's faint voice sounded.

"Ten thousand, shouldn't you be rewarded with sixty thousand immortal crystals according to the effect?" Xu Feng argued.

Xiao Hei didn't reply, saying that he was too lazy to take care of Xu Feng.

"In that case, Xiao Hei will adjust the Dan Fang again."

Half a year later, Xu Feng looked at this furnace of Xiaofeng Nirvana Pill, and the corners of his mouth almost cracked to the root behind his ears.

"Xiao Hei, look at me!"

"If you meet the standard, the reward will be issued, and according to the proportion of your contribution, you will account for seventy percent, and you can go to the treasure house realm to receive immortal crystals at any time."

"Besides, you don't have it, and I don't look at it." Blackie's words had a hint of a smile.

In the Kunxu realm, Zhou Minghe, who was alchemizing, suddenly received a message from Xiao Hei.

"Senior Brother Xu has succeeded!" Zhou Minghe said in surprise.

Then hurriedly check the little black hair that came over to replace the Danfang of the phoenix essence blood.

"Tianzhong Wizard, it's really whimsical, amazing!"

"By adjusting the two pill formulas, I have forcibly refined the Xiaofeng Nirvana Pan Pill with a ten-percent effect!"

At this moment, a black smoke came out of the alchemy furnace.

The happy Zhou Minghe didn't pay attention to it, and went out directly extinguishing the spiritual fire.

"Senior brother, do you still remember when I researched and replaced the Phoenix Essence Blood Pill and used it to refine the Blood Phoenix Pill?" Zhou Minghe came to another alchemy room as large as a palace, looked at an immortal-level alchemist and said excitedly.

"You know, the master attached great importance to you at the beginning, and you succeeded in your research?" The immortal-level alchemist said.

Zhou Minghe didn't speak, just handed the immortal-level alchemist a jade slip.

"If you ask, what are you doing so mysteriously?" The immortal-level alchemist took the jade slip and looked at it.

It only took half an hour for his expression to go from serious to shocked.

"Who is this, with your Dan Dao level and the medicinal scriptures you have studied, you can't change these two Dan prescriptions at all."

"Purify the phoenix spirit grass and phoenix blood grass, and neutralize it with the alienated fruit."

"I look at the cost of analysis, although it is still a little expensive, but it can be refined in large quantities."

"In the future, in the Kunxu Realm battlefield, our human race will have one more means." The immortal-level alchemist said excitedly.

"It was researched by Senior Brother Xu Feng, and he is still a core disciple."

"According to Senior Brother Jiang's inference, Senior Brother Xu should have obtained the Dan Dao inheritance, and the medicine scripture in the inheritance is definitely not simple." Zhou Minghe said.

"So you take the opportunity to let him study this." Immortal-level alchemist Q&A.

"It was Senior Brother Xu who took the initiative to ask, so I had this idea, and it seems that I am right at present."

"How did the sect reward it?"

"One hundred thousand immortal crystals, I am three and he is seven."

"There is also a research on the elixir to replace the inner pill in medicine, if it can be successful, all the 150,000 immortal crystals will be given to Senior Brother Xu."

Zhou Minghe said as he asked Xiao Hei to start preparing for refining the materials of Xiao Feng's Nirvana Pill in large quantities.

In the Xu family's compound, as soon as Xu Feng came back, he entered the rest room.

"Now there are more than eighty-two thousand immortal crystals, and there are still 18,000 short of the goal."

"Rest first, and then solve the problem of Na Na Nei Dan later."

As soon as Xu Feng finished speaking, he lay on the bed and fell asleep.

During this time, he had been modifying and experimenting with various Dan prescriptions in the small world of experiments, and he had not rested much until he returned to the Xu family compound, and he felt a strong sense of sleepiness.

At this time, the spirit-level and immortal-level alchemists in the Kunxu Realm all received the improved Xiaofeng Nirvana Pill Pill Fang issued by Xiao Hei.

"Reserve with all your might, is this a fancy to that demon domain?"

"Who researched this Danfang, it's amazing!"

"Have we made a move from the two saint-level alchemists?"

For a while, the alchemists of the Primal Holy Land exploded.

Xu Feng woke up slowly, got up and put on his clothes under Xiaoxue Xiaorou's service, and came to the restaurant.

In the restaurant, Xu Ming was eating breakfast.

"Big brother, I heard that your research has achieved results, congratulations."

"The first part is researched." Xu Feng said and took out a storage bag and handed it to Xu Ming.

(End of chapter)