Ye Chen walked into a stone chamber in the courtyard that was hundreds of zhang deep underground, and put down the 10,000-jin pendant next to the stone chamber.

"Boom!"

A heavy dark iron door fell, completely sealing this stone room of more than ten zhang in size. This is deep underground, and there is dark iron on the doors and walls, and it is not easy for even a foundation monk to open this retreat room.

Don't worry about being disturbed by the outside during the retreat.

Ye Chen sat cross-legged in the stone room.

He took out a white jade elixir bottle in the storage bag, opened the pill bottle, and a strong elixir aroma immediately escaped from it. Like a musk and an orchid, it enters the heart. He poured out a pill from it, the pill was round and full, crystal clear, and exuded a faint spiritual light.

Ye Chen looked at the dragon's eye-sized Zhuji Dan in his palm, smelling the aroma of the elixir, he couldn't help but feel refreshed, and the pores all over his body were almost opened, as if he wanted to absorb all the aroma.

This elixir is extremely tempting, and people can't wait to take it immediately.

"The vitality of this elixir is actually so strong!"

Ye Chen was surprised, he had refined a lot of primary-level Yuan Qi Pills in the Immortal Mansion. But I have never seen the elixir that the body has such a strong reaction, and the body has begun to react before taking it.

Zhuji Dan can forcibly break through the bottleneck of cultivation, which is really extraordinary.

He had five of these Tsukidans in his hands.

"It is said that this Tsukidan is made from more than 100 elixirs. The refining technique is extremely complex, and it must be alchemy for a long time, and the alchemy technique is extremely skilled in order to succeed. In the Immortal Gate, only alchemy masters are qualified to refine. Moreover, the alchemy master also needs enough foundation-building medicinal materials to practice his hands before he can refine them in batches. ”

"It's just that the recipe for this Zhuji Dan is a secret of the Heavenly Void Immortal Gate. I searched a lot of places but couldn't find them, and I don't know where to get them. If you can get the formula and grow the elixir on Xianfu Island, maybe you can refine it yourself. ”

Ye Chen was a little secretly regretful.

"Strive for a successful foundation building!"

He recuperated a little and swallowed the Tsukidan in his palm.

Ye Chen closed his eyes, wrapped his hands around the dantian, and meditated quietly.

One hour, two hours.

The Zhuji Dan in his abdomen began to melt slowly, and from the small rush of Yuan Qi at the beginning, it gradually formed a huge Yuan Qi flow, which rampaged through his body. Some of the narrow and blocked meridians in the body were also strongly knocked open by this Yuan Qi flow, constantly increasing the meridian pulses.

Every time a narrow and blocked meridian was opened, a strong pain arose in Ye Chen's body.

The surging Yuan Qi was more violent than he expected.

Fortunately, he was in the Heavenly Void Spirit Mansion, absorbing those two spiritual springs, and he had already healed all his injuries. He had spent another half a month carefully conditioning his body to reach the best state, otherwise any small wounds on the meridians would probably be torn apart by the huge Yuan Qi flow on the spot.

Under the strong impact of the Yuan Qi flow, Ye Chen's face turned pale for a while, and suddenly turned red for a while, and he tried his best to control this Yuan Qi flow in his body, and introduced it into the Mud Pill Palace, allowing his Yuan Shen to absorb and strengthen.

Ye Chen's primordial god is in the Mud Pill Palace.

His Yuan Shen was already the size of nine soybeans, the peak of the ninth layer of the Qi Refining Period.

It constantly absorbs the huge vitality produced by Tsukidan, making itself full and bulging. Its light also became more and more intense, from the original faint light, to as dazzling as a small ball of light, shining outward.

However, there is an invisible shackle that always restricts it and prevents it from becoming bigger.

The original spirit wants to absorb more vitality and expand. However, as soon as this shackle is tightened, as much as it absorbs, it escapes and loses, and always maintains the size of nine soybeans.

The abundant vitality had filled the meridians all over his body, and the continuous impact had penetrated into the bone marrow, periosteum, muscles, and skin of his body.

Under normal circumstances, the essence of qi and blood in the bone marrow will be converted into vitality. But now, the vitality is too full. On the contrary, it was reversed, and the pure vitality and the qi and blood essence in the bone marrow fused, making the qi and blood vigorous to the extreme. The bone marrow became harder and harder, the muscles continued to strengthen, the skin glowed, and under the cleansing of the vitality, a large amount of impurities were discharged, and the vitality was forcibly refining his physique.

This kind of tempering made Ye Chen feel like countless ants were biting all over his body, biting them and then putting them back together. But once the refining is completed, the whole body is comfortable, and the physical body has been greatly refined and strengthened.

One day, two days, and ten days passed.

In a flash, Ye Chen had been in retreat for half a month.

The grain of Tsukidan in his belly had completely melted, and most of it had been transformed into vitality. A special cyan airflow was also born in Tsukidan, and this cyan airflow carried a huge amount of vitality that impacted the Genshin in an attempt to break away from the shackles of the Genshin and make the Genshin stronger.

However, the shackles of his primordial spirit are extremely strong.

How to impact the indeor, how the primordial spirit absorbs the vitality, are all forced to vomit out by this shackle. The cyan air flow began to weaken very slowly.

"This bottleneck during the foundation building period is really tough! This cyan air flow still can't break through the bottleneck!"

Ye Chen looked anxious.

However, this bottleneck is shackled, invisible and intangible, and it is an invisible existence. He had no other way to do anything other than use the air flow from Tsukidan's birth.

Ye Chen understood a little. Once that cyan air flow disappears, this first Tsukidan may end in failure.

"Take the second Tsukidan to generate more cyan airflow to impact the bottleneck?"

Ye Chen wanted to, but he didn't dare. The tide of vitality in the meridians in his body was already very fierce, and he couldn't hold more vitality at all. If he takes the second Tsukidan immediately, he won't be able to bear it, and I'm afraid it will make his meridians explode.

He had to let these energies dissipate from his body before he could take the second Tsukidan and hit the bottleneck of Tsukiji again.

Under normal circumstances, if the monk fails to build the foundation, the Yuan Shen will not be able to absorb these Yuan Qi, and the body will not be able to absorb it, and most of the Yuan Qi produced by the Zhuji Dan will be wasted. It's something that can't be helped.

In Ye Chen's mind, a thought suddenly flashed. "Anyway, these vitality can't be absorbed, just inject them into the Immortal Mansion Island!

As soon as this thought came out, the huge Yuan Qi flow in Ye Chen's body immediately rushed along the meridians towards the Immortal Mansion Island in the Mud Pill Palace.

Xianfu Island did not refuse, and almost instantly, the huge vitality generated by Tsukidan was absorbed.

Xianfu Island is full of spiritual light, surrounded by aura, treasure light, gorgeous and dazzling.

This made Ye Chen almost dumbfounded.

He didn't have time to look at the situation in the Immortal Mansion more.

Most of the huge Yuan Qi flow in Ye Chen's body disappeared.

Only near the primordial god, there was still a faint cyan airflow, impacting the invisible primordial god bottleneck.

Ye Chen did not delay, and immediately took the second Zhuji Dan.

If you take this Tsukidan now, you don't have to worry about too much vitality. This second Tsukidan melted in his abdomen, giving birth to a huge flow of Yuan Qi again.

After the impact of the Yuan Qi flow of the first Tsukidan, Ye Chen's large and small meridians had been greatly broadened, and this time it was obviously not so painful.

With the experience of the last time, Ye Chen is even more familiar with the road.

A cyan air flow generated by the second Tsukidan was channeled, and it was mixed with the cyan air flow produced by the previous Tsukidan. These two cyan currents merged into one, becoming more powerful, and together they went to attack the bottleneck of the primordial spirit.

This cyan air flow was sandwiched with a huge Yuan Qi flow, impacting the Yuan Shen for a moment.

"Boom!"

It seemed that an invisible shackle had been pierced by the cyan airflow.

The whole world, for a moment, seemed ethereal.

At this moment, Ye Chen seemed to feel that this world was a little different, clearer and more thorough. He could easily feel the aura around him being rich and thin, as if everything around him was under his control.

Ye Chen's ninth-layer primordial spirit in the Qi refining period was originally only the size of nine soybeans. Breaking through an invisible bottleneck, absorbing a large amount of vitality, and growing into the size of an egg. And it's brighter, too.

This group of primordial spirits frantically absorbed the vitality and gradually stabilized.

"Finally broke through the first layer of the foundation building period!"

Ye Chen's body trembled slightly, he opened his eyes, and an astonishing divine light flashed in his eyes, and his face showed a look of ecstasy.

Worship into the Heavenly Void Immortal Gate, and the breakthrough that cultivation has dreamed of has finally arrived. This is one of his greatest gains in Xianmen.

His divine sense could also easily probe the surrounding area.

The most important thing is that a foundation building monk has a longevity of two hundred years, which means that he can go further in his long cultivation career. This was a huge advantage that Qi Refining Stage cultivators could not match.

And with the strength of his primordial god, the mana capacity has increased greatly, and now he can use more powerful magic weapons. A flying sword magic weapon can almost instantly kill a disciple in the Qi refining period.

Now, he has truly become a second-generation true cultivator of the Heavenly Void Immortal Sect.

In the entire Tianxu Immortal Sect, there are only more than 1,200 second-generation foundation building stage disciples, and both their identity and status have really improved significantly.

And the three generations of Qi Refining Stage disciples, no matter how strong they were, were only one of the more than 100,000 disciples. Although he won the first place in the Xianmen Examination and became famous, if he could not complete the crucial step of building the foundation, after a long time, he would not be able to achieve any climate after all.

Only by breaking through the foundation building period did it really open the way to a higher level.

Ye Chen's heart was excited, and he didn't stop, and continued to cultivate.

After more than ten days, the primordial spirit of the first layer of his foundation building period completely absorbed all the vitality born from the meridian foundation building pill in his body without wasting anything, and raised it to the mid-stage cultivation strength of the first layer of the foundation building period.

After Ye Chen finished meditating, he opened his mouth and spit out a shining ancient painting of the Immortal Mansion.

(To be continued)