Ye Feng began to wonder if those big sects also had such treasures, otherwise where did these Yuan Yuan Pills come from, relying on manpower to refine them, not to mention slowly, who could waste so much time refining pills.

To solve the problem of absorbing the vitality, the next step is to depict the inscription, Ye Feng must depict an inscription formation in the Qiankun Hu, which is used to condense the Yuan Yuan Dan.

As the cultivation became deeper and deeper, Ye Feng had more understanding of the Soul Inscription Technique, especially when he began to touch the Great Dao of Heaven and Earth, this Soul Inscription Technique was like a guiding light, constantly guiding Ye Feng's direction.

Because Ye Feng's Yuan Shen had already broken through to the Divine Martial Quadruple, it was not very difficult to depict the inscription, but in an hour, a huge inscription formation appeared.

The formation is like a spiral shape, one end is pointed and the other end is oval, when the vitality comes in through the entrance of the oval, and when it comes out from the pointed side, it will be imprinted by an inscription in the middle.

I don't know if it will work yet, but I have to try it.

Placing the Qiankun Hu in the Nine Hell Demon Ding, Ye Feng began to devour the vitality.

There is abundant vitality here, there is no need to worry about the exhaustion of vitality, the surrounding vitality turns into liquid, enters the Qiankun Hu, and instantly enters the oval entrance, the inscription formation seems to be alive, and a large number of inscriptions appear, falling on those incoming liquids.

After a few breaths, Ye Feng guarded the exit, hoping to see the successful elixir come out.

The hard work paid off, and after waiting for dozens of breaths, more than a dozen strange-shaped pills flowed out of the exit, and I don't know what the effect was.

Looking at the elixir with different rules in his hand, Ye Feng smiled bitterly, although it was formed, the shape was wrong, and the inscriptions on it were not neatly depicted, it didn't look like the lines of heaven and earth at all, but like it was painted randomly.

"Big brother, don't be discouraged, you can continue to improve, and you will definitely succeed!"

Looking at Ye Feng's wry smile, Ah Nan said comfortingly.

"You don't have to comfort me, how can I be hit by such a small thing. ”

Ye Feng restrained his feelings, continued to ponder, and transformed the inscription formation, and in response to these deformed pills, Ye Feng also found some problems.

Swallowing again, a large amount of vitality entered the Qiankun Hu, and continued to wait.

Dozens of breaths passed, and more than a dozen strange-shaped pills rolled out, but the shape was obviously much better than just now, and the inscriptions carved were not so ugly, and the level had improved a lot, although it did not have the appearance of Yuan Yuan Dan, but at least it had been formed.

After experiments again and again, and failure after failure, Ye Feng almost changed the inscription formation more than a hundred times, and with each change, the quality of the pill would be improved, and finally after a thousand tests, the pill that appeared was almost the same as the Yuan Yuan Pill in Ye Feng's hand.

"It's finally formed, although there are still some flaws, but it's enough to be real!"

Ye Feng compared the two Yuan Yuan Pills, his Yuan Yuan Dan was brighter, and the Yuan Yuan Pill he exchanged for from the Treasure Pavilion was dim, but if he took it, Ye Feng's Pill Yuan Qi was slightly lighter, and the inscription was slightly heavier, each with its own advantages.

Ye Feng paid attention to the depiction of the inscriptions, so the inscriptions on each pill were much clearer than the Yuan Yuan Dan obtained from the Treasure Pavilion.

It's a pity that Ye Feng doesn't know how important the inscription is for cultivators, the Yuan Qi can be ingested in other ways, but the inscription can't be obtained, it can only be absorbed from the Yuan Yuan Dan.

Unless you reach the peerless powerhouse, you can comprehend the pattern of heaven and earth by yourself, and those martial artists below the seventh level of the divine martial arts have to rely on ingesting from the Yuan Yuan Dan, or slowly comprehending it yourself, the process is very difficult, and even thousands of years can not comprehend a complete wisp of inscriptions.

"Big brother, the ingredients are almost there, now it's good to be able to produce them in large quantities!"

Ah Nan stretched out his hand and compared it with the Yuan Yuan Dan that Ye Feng took out, and the difference between the two was not very much.

"Well, let's do this for the time being, when my realm is raised, I can depict more inscriptions, and it is estimated that I should be able to imitate a better Yuan Yuan Dan. ”

Ye Feng was confident, with the current realm of Shenwu Triple Heavy, it was already very good to be able to imitate it, once he broke through to Shenwu Triple Realm, it should not be difficult to refine Yuan Yuan Dan.

"With the current output, how much can be produced in a day!"

Ye Feng asked.

"I just estimated that it can produce about 10,000 pieces a day, and unless you increase the formation, you can refine more. ”

The speed of refining just now Ah Nan counted it, and he could refine 10,000 pieces in a day.

"It's still too slow, my demand is at least 100,000 a day, and I can only do this in front of me, let's break through the Shenwu Duo first!"

There is no way, maybe by breaking through the Shenwu Duo, you can increase the formation, so that the speed of refining will be accelerated.

Throwing Qiankun Hu into the Nine Domains Demon Ding, Ye Feng directly sacrificed the Nine Domains Demon Ding, and began to swallow the surrounding vitality, and one by one the crystal clear Yuan Yuan Dan appeared.

"The task of protecting the Dharma is up to you!"

Ye Feng sat on top of the pool water, he didn't need Yuan Yuan Dan for the time being, these spiritual waters were enough for him to break through a few realms.

"Don't worry!"

Ah Nan and Ah Nu floated in the air, protecting Ye Feng.

Silent in his mind, Ye Feng took out the Zhuji Dan, swallowed it in one gulp, and a strange energy exploded from Ye Feng's body, as if the whole person became extremely light, this is the legendary Zhuji Dan, only if the foundation is successful, can he be regarded as a qualified cultivator.

Originally, Ye Feng's realm had reached the peak of the Shenwu Double, and he was almost one step away from entering the Shenwu Double, but now with the help of the power of Zhuji Dan, this layer of windows was instantly pierced, and a strong force burst out from Ye Feng's body, and the terrifying initial aura of the Shenwu Duality instantly diffused.

When Ye Feng broke through, the aura in the pool water frantically poured into Ye Feng's body, and these aura didn't know how many years it had accumulated, and now it finally turned into a glycol liquid, all of which flowed into Ye Feng's body.

"Boom!"

Suddenly, the Nine Domains Demon Ding floating in the void changed, and the surrounding laws could not lock the Nine Domains Demon Ding, and the pieces of laws were absorbed by it.

"The Nine Domains Demon Ding is going to evolve!"

Ye Feng sensed it for the first time, and as soon as his mind moved, the Nine Domains Demon Ding returned to Ye Feng's body.

It was like a demonic beast awakening in Ye Feng's body, the Nine Domains Demon Ding was getting bigger and bigger, and in the boundless magnification, more demonic flames emerged from the depths of the Nine Domains Demon Ding, and even black flames appeared, which was the purest hell flame.

"Nine changes of gods and demons, the fourth change, and the law change!"

Ye Feng successfully promoted the Nine Domains Demon Ding to the point of the fourth change, the space inside the Demon Ding was constantly expanding, and a terrifying portal appeared, as if it could lead to the Nine Hells, and the cold hell flames emanated from this portal.

"Gates of Hell, summon demons!"

I don't know what's going on, this sentence seems to be Ye Feng's innate, muttering to himself, the huge portal suddenly came alive, and countless evil demons crawled out of it, entered the Nine Domains Demon Ding, and after being calcined by the demon flames, they exuded a pure hellish aura.

Hell Qi is different from Yuan Qi, but it is the same, they both belong to the purest energy in heaven and earth, this is just a difference in demand.

"Whoa!"

Suddenly, there was a loud sound from inside the Qiankun Hu, as if it was an elixir impacting, and Ah Nan's divine consciousness immediately entered the Qiankun Hu, only to see that his eyes grew up, and he couldn't believe what was happening in front of him.

"Yuan Yuan Dan, a lot of Yuan Yuan Dan!"

After the breakthrough of the Nine Domains Demon Ding, the absorbed Yuan Qi was dozens of times faster than just now, or even more, and what surprised him even more was that these regional Qi were integrated into the Yuan Yuan Dan, which improved the quality of the Yuan Yuan Dan a lot.

The two completely different energies fused together perfectly, forming a new Yuan Yuan Dan, whose purity was several times higher than that of the Yuan Yuan Pill that Ye Feng had obtained from the Treasure Pavilion.

"Gate of the Territory, summon demons!"

Ye Feng also discovered this situation, and summoned again, and more evil demons appeared, constantly pouring into the Nine Domains Demon Ding, being calcined by the demon flames, and dissolving the pure hellish qi.

"It's so pure energy, even purer than vitality!"

Ye Feng tried to absorb the Hell Qi, and found that this energy could be absorbed by himself, even better than the Yuan Qi, and more pure.

It is rumored that Hell was once an exiled angel, but it was only the germination of evil thoughts that led to the pure angelic qi and turned into evil qi, although the mind changed, but the purity was no worse than the angelic qi, and even stronger, after the calcination of the hell demon flame, the impurities in it were cleaned up.

In the early stage of breaking through the Shenwu Duplex, Ye Feng needed a lot of vitality, and now that he had communicated with the Gate of Hell, a steady stream of Hell Demons were summoned by Ye Feng and directly turned into Hell Qi, constantly supplying Ye Feng to absorb.

There is a supply of spiritual water outside, and there is a supply of hellish qi inside, Ye Feng doesn't have to worry about the problem of not being able to keep up with the resources now, let go of his heart, and absorb unscrupulously, the nine dantians are constantly absorbing, compressing, and the energy in the dantian is gathering more and more.

"It's a pity, you can only summon low-level demons, if you can summon the demons of the Divine Martial Realm, wouldn't it be invincible!"

Ye Feng was thinking of a crazy move, if he could summon a large number of demons as his own combat army, wouldn't he be able to sweep through the entire Qin Li Zhongzhou.

How big the hell is, Ye Feng doesn't know, it will definitely be countless times bigger than Qin Li Zhongzhou, it is rumored that there are three thousand worlds in heaven and earth, and this hell realm is also one of them, and human beings only occupy one realm.

There are dragon realms, Buddha realms, ghost realms, martial realms, weapon realms, demon realms, and demon realms between heaven and earth...... There are countless of them, and this hell is only one of them.

It took half a day for Ye Feng to successfully break through to the Shenwu Dual, and the Nine Domains Demon Ding was also promoted to the fourth change, with one more function, that is, he could summon hellish demons, which Ye Feng did not expect.

There was almost no stop, after stabilizing the early stage of the Shenwu Duplex, Ye Feng took out the Condensing Pill and prepared to break through to the middle stage of the Shenwu Duplex, it was not very difficult to break through to the small realm, plus Ye Feng's foundation was very thick, so there was no need to worry very much.