Yu Zecheng prepared step by step in an orderly manner, choosing the dojo, the environment where the foundation was built, had a non-negligible impact on the foundation building, and finally decided to build the foundation in his own cave, because this is his home, and he is very familiar.

Looking for the foundation building magic circle, when building the foundation and washing the marrow, you need the support of Daliang's aura, so you must arrange the magic circle in advance to make up for the unexpected needs, and finally Yu Zecheng found a formation in the Tibetan Scripture Pavilion, and slowly arranged it in the cultivation room, this array needs three hundred and sixty-five middle-level spirit stones to complete, but Yu Zecheng is the most indispensable is the spirit stone. Replace all those low-level spirit stones in your hand with middle-level spirit stones, and after the large array is arranged, there are various middle-level spirit stones equivalent to 100,000 low-level spirit stones in your hand.

Preparing for Tsukidan, he has a total of fifty-one top-level Tsukidan, Tsukidan is the most precious thing for others, and he has everything he has, it is not a problem at all.

Everything is ready, retreat and build the foundation, Yu Zecheng arranges all affairs, closes the door of the cave, returns to the cultivation room, sits on the foundation building circle, and begins to retreat and build the foundation.

Yu Zecheng finally embarked on the road of foundation building, which was the most important test in his life, and if the foundation was built, then he could be regarded as embarking on the real immortal road, he could learn the six swords, refine the four qi, obtain the power of heaven and earth, and master the real Xuanyuan secret method.

The first seven said, calm down, think about the past, figure out what you have learned, and gain a little.

On the seventh day, Yu Zecheng entered the Pangu world, wandered by the pool, frolicked in the lake, lay on the stone platform, and looked at the air, the fireballs transformed by the thirty-six purple ink Jiao in the air were floating in the air, they moved irregularly, and sometimes collided together involuntarily.

Suddenly, Yu Zecheng had a crazy idea in his heart, what would it look like if these purple ink Jiao were combined into one fireball?

As soon as the thought sounded, the Pangu world immediately shook, and those flying fireballs, with this thought, really flew towards the center one by one, slowly merging, as if they had been waiting for this order for a long time.

Yu Zecheng's body was shocked, when a fireball was in the center of the void, the purple ink Jiao in a big cave actually had a kind of self-detonation momentum, if it self-exploded, it would turn into a ball of true yuan qi, but this kind of explosion is irreversible, the soul is broken, this is a fundamental change, the soul is destroyed, the soul will die immediately, and there is no possibility of resurrection.

Now there are two choices in front of Yu Zecheng, one is to stop the fireball from running, the self-explosion stops, and everything returns to normal, and the second is to continue, spontaneously erupt, the soul dissipates, and turns into the power of infinite true yuan.

This kind of self-explosion is actually recorded in the secret method of the Out of Body Sect, this is the secret method of building the foundation of the Out of Body Sect, with this secret method with the Tsukidan, there will be a miraculous effect, you don't have to waste too much Tsukidan, you can build the foundation.

Yu Zecheng was faced with a dilemma, he was silent, and suddenly the big hole exploded, the soul dissipated, and turned into infinite true yuan power all over his body, and Yu Zecheng began his journey of building a foundation.

This purple ink Jiao has established miraculous feats in these two wars, but it has also exposed weaknesses, one-on-one, powerful Qi refining period cultivators can be easily killed, in the future battles, facing the foundation building period monks, facing the two immortal cultivators of the Heaven Splitting Sword Sect, this purple ink Jiao is simply vulnerable, and there will be less and less help in the future, it is better to blow itself up now, turn into true yuan power, and use it for your own use.

And if you want this purple ink Jiao in the future, you can continue to refine, you can have as many as you want, and now the qi is caused by the machine, which is just right for them to play the maximum role and make the best use of everything.

The most critical point, Yu Zecheng wants to try, he wants to follow the example of the ancients, do not use Tsukidan, and build the foundation, in those ancient books, although the discussion is in full swing, but whether it is in support of taking Tsukidan or not supporting taking Tsukidan, there is a vague point of view between the lines, that is, the immortal cultivators who do not take the Tsukidan and the Tsukidan are more promising and rich in true yuan than the immortal cultivators who take the Tsukidan.

The role of Zhuji Dan is to provide a powerful true element, to wash the marrow and cut the bones, and now there is this soul self-detonation, providing a strong true element power, since the predecessors can do it, why can't they themselves.

So Yu Zecheng wants to give it a try, he has to fight, in fact, even if he fails, it's nothing. I have fifty-one Tsukidan, I can eat it as a sugar ball snack, and I am invincible before I fight, so why not give it a try.

The mind has been decided, the soul in the big cave bursts, and the true element is infinitely generated, this true element is endless, but it is the force of Yu Zecheng's soul turned into a soul, which is naturally consistent with Yu Zecheng, without leaking, all into the meridians.

This true yuan power, with one part of dragon qi and two parts of flame power, was slowly injected into the dantian, and suddenly the reaction of extremely bloody true yuan power was extremely bloody, and the two were perfectly fused and confronted each other.

The true element operates, and on the thirteenth day, another acupuncture hole explodes, and another true element power is generated, and the power of these two acupuncture points is not superimposed, but doubled, and the fire and fire are fused, which is equivalent to the power of the true element released by the self-explosion of the four acupoints.

At this time, the power of this flame appeared, and the true power of the blood gang was also changing, and suddenly a strange water vapor momentum was generated in the dantian, which was the Pangu world made adjustments, using the water of the lake spirit pool, and began to dissolve the power of the purple flame ink fire.

Time passes, and the white horse passes by.

A month later, the acupuncture points burst in five places, and the power of the remaining true yuan spread all over the body, washing the meridians and cutting the marrow, refining the bones and forging the flesh, and slowly impacting the foundation building period.

Six months later, twenty-one acupuncture points burst, and Yu Zecheng slowly refined the true essence, turning from qi to liquid, and gradually entered a better state.

Nine months later, thirty-six holes burst into holes, and thirty-six fireballs in the Pangea world dissolved into one, turning into a sun, and then the Pangea world closed and adjusted automatically.

A year later, Zhenyuan was condensed and reborn, and Yu Zecheng stepped into the period of foundation building, taking a key step in his life's journey.

The ancient realm opened, the sun in the sky disappeared completely, but there was one more area, outside the world of water, there was a floating mountain in the air thousands of kilometers away, the size of this mountain was thirty-six zhang in size, the mountains gathered together, there were thirty-six volcanoes on the mountain constantly spewing magma, this magma flowed down, that is, increasing the volume of the volcano, and refining the black fog of the void.

Far from the original lake world, this volcanic realm is connected by a channel made up of lake water, which turns into a pipe to feed endless lake water into the volcano.

The volcanic world is a kilometer away from the lake world, and it seems to be a satellite of the water world, and the lake water pipe is used as a line to slowly rotate around the water world.

Yu Zecheng couldn't go up to this volcanic world, because it was just an imaginary realm, just an illusory realm, because his thirty-six cave holes were blasted and entered the foundation building period, and the Pangu World fireball condensed to form this virtual realm.

The formation of the lake world is because he has obtained the innate treasure of the fairy blue essence, which can provide Yu Zecheng with an innate true element endlessly, so this kind of physical world is formed.

And the volcanic world does not have the treasure of heaven and earth to provide it with aura, so now it is just a virtual realm, and I want to turn the void into reality. Only when Yu Zecheng finds the innate fire spiritual object in the future, then he can speed up the process of manifestation, or wait until this lake world continues to convey the true essence of the lake water, and slowly manifest the volcanic world little by little.

Yu Zecheng looked at his illusory and ethereal, shaking volcanic world from time to time, suddenly picked up a spirit stone and threw it far away, and suddenly the spirit stone flashed, turned into aura and joined the volcanic world, and the form of the volcano seemed to stabilize a little immediately.

After fighting, Yu Zecheng threw all the spirit stones he had in the Pangu World over, leaving only the high-level spirit stone, because such a high-level spirit stone, even if you have a hundred middle-level spirit stones, it is not easy to exchange for a high-level spirit stone, so Yu Zecheng left it.

With the investment of nearly 90,000 low-level spirit stones, Yu Zecheng once again returned to his previous state of poverty, but the investment paid off, the volcano seemed to have solidified a lot, and suddenly a dragon roar came out from the crater, in that virtual realm, there were living beings, and it was like Yu Zecheng calling coquettishly.

With this dragon roar, Yu Zecheng suddenly withdrew from this Pangu world, and let out a long roar in the cultivation room.

This long roar resounded through the clouds, and with this long roar, the three hundred and sixty-five middle-grade spirit stones under Yu Zecheng's feet began to burst one by one, in a strange order, all of them burst, and after the burst, those crystal clear middle-grade spirit stones were all dimmed and turned into ordinary stones, and some directly turned into ashes.

The spiritual power in this spiritual stone was strongly extracted, and the spiritual power in the entire cultivation room reached a terrifying level, and these spiritual energy began to rotate according to a certain formation, turning into a nebula in the sky, and the rest became the center, slowly running.

Yu Zecheng, who was roaring suddenly, stopped in a hoarse voice, and suddenly this infinite aura rushed into his body.

The thirty-six acupuncture points on Yu Zecheng's body, there was a loud explosion of "boom, boom", and then the blood in his body boiled and made a huge roar. Like the river of nine heavens, it flows endlessly and sweeps the world.

At the same time, the bones made a popping sound, like firecrackers that were continuously lit during the New Year, and only stopped after a thousand rings. Then the inner bone marrow is a shock, and infinite power is generated in it.

The true yuan in the body was running violently, but the meridians in the body were already as solid as iron, and the original stream and small river had become the surging Yangtze River. The skin of the body begins to discolor, removing countless impurities and becoming crystal clear, smooth and clear.

The flesh and blood of the whole body are condensed and strong, to the rigid to the yang, to the yin to the soft, two different artistic conceptions, all contained in this flesh and blood, can be instantaneously transformed, a feather can not be added, flies and insects can not fall.

Yu Zecheng's foundation building array played a role, and in an instant, Yu Zecheng's body was cut and cleansed, and it was reborn to such an extent.

Yu Zecheng stood up slowly, and the magic robes on his body immediately turned into flying ashes, and they had been completely shattered in the process of building the foundation.

Yu Zecheng took a step, stretched out his hands, looked at his hands that had become extremely crystalline, and couldn't help but sigh in a low voice:

"The foundation has been built, and I have finally built the foundation. ”

Then he shouted violently:

"The foundation was built, and I succeeded. ”

(To be continued)