He actually made up his mind to take advantage of such a brutal Yin Qi energy to invade the body and directly refine this strand containing a variety of special energies.

Nearly a month later, Yun Yu, who was sitting cross-legged on the spot, suddenly opened his eyes, his expression was calm, and he no longer showed that unbearable look.

Standing up again to collect the formation and shield, he approached the place where the Yin Spring gushed again. After traveling for dozens of miles, he sat down again in formation and did not move.

This time, he stayed for a month and a half before he got up again and entered the ...... of the core of Yin Spring again.

Nearly two years later, Yun Yu finally approached the place where the Yin Spring gushed, and he could clearly hear the sound of the Yin Spirit's howl in his senses.

Sensing the thick yin energy like rain and mist in front of him, as well as the yin soul spirit that was howling in the yin qi, Yun Yu knew in his heart that he had finally arrived at the place where the foundation of the entire Demon Soul Secret Domain existed.

Looking at the liquid yin energy in front of him, there were weak yin qi essences flashing in the air, and Yun Yu's expression was also changing.

But after only stopping for a moment, Yun Yu's expression rose resolutely, and his figure did not hesitate to ask the rolling yin qi energy flow and flew directly in.

But the next scene made Yun Yu feel careless this time, and the color of horror immediately appeared on his face.

In that Yin Fountain gushing out of this place, Yun Yu's soul power detection was also blocked by it without accident.

Although he couldn't use his soul power to probe under the thick yin spring, under his strong driving void exploration aura, he still saw a small part of the situation under the yin spring.

The yin energy here is not spreading rapidly in all directions, but under the convergence of the yin spring, towards a place in the sky less than ten zhang above it, regulating the majestic yin energy gushing out.

And there seemed to be an extremely mysterious rule in that place, which guided the infusion of majestic energy energy, and only a very small amount of yin energy overflowed from that place.

Yun Yu was slightly worried in his heart, and his soul power probed to that place, and when he looked into it, all of a sudden, his originally calm expression suddenly became solemn.

Its soul power probe in that regular place, although it is a big obstacle, but this is not to detect under the Yin Spring, all of which can be detected thousands of miles away.

When the soul power he penetrated was more than three thousand miles away from him, a scene that made him couldn't help but be very solemn appeared in his consciousness.

Within Yun Yu's consciousness, above the core of that place, a huge spatial crack appeared in Yun Yu's heart.

The bursts of Yin Qi energy that spurted in rapidly, as well as the weak Dao Spirits that flashed in the middle of the Yin Qi energy, all poured towards the extremely vast spatial crack that was difficult to detect in it. Seeing such a scene, Yun Yu was a little stunned.

It is no wonder that there are no other high-level demon spirits in this place, and there are those low-level yin qi spirits, which are not dispersed with yin qi energy, but directly appear around this place.

As for when that spatial crack will be opened, when it will be closed, and where those demon souls will be restored, as well as where that spatial crack will eventually lead, it is not something that Yun Yu is eager to find out at this time.

Where did those Yin Qi Souls come from, and why they were scattered into the Demon Soul Secret Domain, this place was not the most important thing for Yun Yu to find out at this time. What he had to do at this time was to first improve his cultivation.

After that, there will be time to learn about the secrets of this place and explore whether there is a way to other worlds.

Facing the gushing place under the Yin Spring, although Yun Yu was extremely vigilant in his heart, he didn't dare to probe it.

After nearly a year of absorbing the Yin Qi energy in such a place and refining it all, he already has a certain amount of resistance to the various special attributes in the Yin Qi energy in this place.

Driving his body, he slowly flew towards the place where the Yin Spring was located, although the speed was not fast, but it did not take long, and soon, he approached the edge of the Yin Spring gushing place.

Just as Yun Yu's figure slowly approached, he cautiously planned to detect where he was in order to maximize the Yin Qi energy of this Yin Spring.

Suddenly, a huge suction force that was so huge that even Yun Yu could not resist suddenly attached to his figure.

Almost without waiting for Yun Yu to perform, Yun Yu's body was pulled into the tumbling Yin Qi energy liquid by the huge suction force that suddenly appeared.

The huge suction force that suddenly appeared was extremely fast, even if it was cautious, Yun Yu, who was fully engaged in defending against various emergencies, could not sense it in advance and react relatively.

Suddenly entering the rapid flow of Yin Qi energy rain and mist that had condensed into a fine liquid flow, Yun Yu was trembling all over his body.

A huge flow of energy directly poured into his body suddenly acted on his body, and one of the strange powers rushed directly into his sea of consciousness.

This strange power seems to be very spiritual, but it is extremely complex, there is extremely powerful spiritual power in it, but it is very scattered and chaotic, and there is an extremely vicious aura in it.

This strange energy that rushed into the sea of consciousness suddenly made Yun Yu's majestic brain domain Heavenly Soul Lake stir up, and the soul realm that was comparable to the peak level of a powerful monk was suddenly dizzy under the effect of this strange energy, although he was not necessarily stunned or lost his mind, but he was also confused.

With these strange energies entering the body and rushing straight into Yun Yu's mind, the majestic yin energy around him, containing a number of special and violent energies, also suddenly poured into Yun Yu's body.

There was no need for Yun Yu to drive the absorption of thoughts, and the majestic energy poured into Yun Yu's body, and along the meridians of Yun Yu's body, it began to sprint in all directions.

The sudden invading of crazy energy did not immediately make Yun Yu feel a sense of crisis, even at this time, his mind was a little sluggish.

However, its powerful and tenacious internal meridians still maintain the acupuncture points of the whole body, but the amount of crazy energy at this time is extremely large, and the quality is also extremely thick, dense and liquid.

As time gradually flowed, the crazy majestic energy that entered the body made it refine and strengthen many meridians throughout the body after several months, and suddenly felt overwhelmed.

Like a liquefied majestic raging energy, infused with the meridians flowing and bulging, the whole body seemed to be replenished with the essence blood of multiple high-level monks for a while, and the Dao meridians suddenly bulged and swollen, and streams of black-gray liquefied energy overflowed.

Yun Yuqi's meridians all over his body were constantly impacted by this wave of continuous energy, and some of the meridians had cracked in the skin where they passed, and the essence blood flowed in the body, while some of the skin was directly cracked, and the essence and blood were wrapped in energy and rushed out, which was extremely terrifying.

The sudden vision from the body would have been detected under normal conditions, but at this time, it was extremely strange, and in such a situation, it had not stimulated the sluggish Yun Yu to wake up.

The strange power that directly invaded his brain and mind tightly wrapped all the places connected with his brain space, as if trying to seal him off and put him into a deep sleep.

The huge pain of the meridian tears from different parts of the body finally stimulated Yun Yu's subconscious. Suddenly, a heart-rending cry erupted from Yun Yu's mouth.

A terrifying crackling sound from various parts of the body also sounded continuously in Yun Yu's body at this time. A large dark red blood mist suddenly burst out on the spot.

The bright red and majestic blood mist, like the splash of a waterfall hitting the rock, bloomed in the black lacquer mist shield around Yun Yu's body. But it was immediately absorbed by it.

When the meridians in the upper and lower parts of his body collapsed and exploded, Yun Yu's remaining mental consciousness was finally unable to support it and he fainted.

In this instant, Yun Yu's mind was like a flash of thought, before Yun Yu lost the last wisp of will, he finally understood how terrifying and dangerous it was for countless demon souls to gush out of the Yin Spring.

But by the time the last of his clear will sensed this meaning, it was already too late for him to think about any action, either to break away or to defend himself and make a move to respond.

If a person, whether he is a martial artist who has just entered the cultivation realm or an extremely high-level monk, if the meridians all over his body are shattered and his acupuncture points are bursting, it undoubtedly indicates that this person can no longer cultivate.

Even if there is still a soul in his body, if he does not practice the soul exercises, he is like a wasted person, unable to store his own energy or use it for cultivation or for other purposes.

At this time, all the meridians on Yun Yu's body, including many acupoints, were all supported by special yin energy and exploded.

And there was also a strange divine soul rule force here, which invaded his brain domain, and shocked his mind to the point of fainting.

Even if Yun Yu is a soul cultivator, he can not be afraid of the consequences of tearing the meridians all over his body, and he can continue to cultivate and advance by relying on the soul cultivation method just like his deity.

But at this time, the consciousness in his brain has entered a dizzy state, and there is a strange divine soul rule force in it, and at this time, it is difficult for him to control the state of the situation encountered here.

The scene was gloomy, and when Yun Yu's mind fell into a deep immersion, time seemed to stand still above the moment when his consciousness disappeared.......

The majestic and raging yin energy around him, as well as the low-level spirits that may have flashed in it, all ceased to exist at this time.

The mysterious nothingness that tumbled and spewed into the air also seemed to suddenly lose momentum, as if it had come to an abrupt halt, as if the changes in this place had suddenly stopped all operations.

Time and changes, at the moment when Yun Yu's consciousness was dizzy, it seemed that there was no longer any overflow.

Suddenly, with Yun Yu's sea of knowledge as the center, as if his body had replaced the core of Yin Spring at this moment, an extremely strange rule force, in the depths of Yun Yu's sea of knowledge, with an indescribable rapidity, instantly enveloped the entire Demon Soul Secret Domain.