Of course, Su Xiaofan had just come in, and his physical energy had not yet been exhausted, and his spiritual energy was still circulating. If he could really hold on, he could still hold on longer than them.

But in Yu Shengzi's eyes, this is of little use, because all cultivators in this space will soon face a catastrophe.

"Fellow Taoist Yu Shengzi, what did you mean when you just said it was unfortunate?"

Su Xiaofan asked: "Whether I come here or not is not up to me. How can I say it's a coincidence?"

"Fellow Taoist Fanchenzi, let me tell you the truth."

Yu Shengzi glanced at the crowd around him and sighed: "The formation that protects us here will soon be exhausted. When the formation is dispersed, we will all die..."

Under the protection of the formation, the cultivators living here can survive. Without the formation to isolate the demonic energy, these people may not be immune to the attack of the demonic energy.

In fact, the reason why people like Yu Shengzi are so thin is not entirely due to their inability to absorb spiritual energy.

Rather, they, the cultivators of the Nascent Soul stage, all inject a spiritual energy into the formation eyes, and in this way maintain the operation of the formation.

But this method is just drinking poison to quench thirst. It is estimated that they will not be able to continue for another two or three years at most.

That's why Yu Shengzi said that Su Xiaofan's arrival was unlucky. In two or three years at most, he would have to face this evil attack with them.

"Who set up this formation? Why were there spiritual stones at that time?"

Su Xiaofan said: "I am familiar with some formations. I have relied on formations to avoid being hunted by demons in recent years, but I have never seen this formation before..."

Su Xiaofan used his spiritual mind to observe a corner of this formation, and found that the arrangement of this formation was extremely mysterious. There were only three high-grade spiritual stones in the formation.

Even if there are four formations, or a dozen high-grade spiritual stones, just this few spiritual stones can actually resist the invasion of demonic energy from all directions and protect this space.

The person who set up the formation should have used some other power, but Su Xiaofan's spiritual thoughts couldn't detect it, which shows that the person who set up the formation was very clever.

"Oh? Fellow Taoist Fanchenzi, do you also know the art of formations?"

Just after Su Xiaofan asked this question, the person who was sitting in the center of the space opened his eyes.

"I dare not say that I know everything, but I do have my own opinions on some formations."

Su Xiaofan was not modest and said: "Although I come from an alchemy sect, I study formations!"

"Oh? Yu Shengzi, please bring fellow Taoist Fanchenzi over."

The man's eyes lit up when he heard this, "My name is Xuan Zhenzi, and all the formations here, including those within a million kilometers around, were arranged by me..."

"A million kilometers around?"

There was a look of horror in Su Xiaofan's eyes, "Without cultivation, how did the senior travel millions of kilometers?"

For cultivators, a million kilometers is really nothing. Even Nascent Soul cultivators can reach it in a short time.

But for cultivators who have imprisoned their spiritual consciousness and physical body, it is almost impossible to travel millions of kilometers.

"With the formation, even if you don't have any cultivation, so what?" Xuan Zhenzi had a look of pride on his face.

"Fellow Taoist Fanchenzi, senior Xuanzhenzi, is an Earth Immortal-level cultivator."

Yu Shengzi, who was next to him, whispered: "Back then, Senior Xuan Zhenzi made a great wish to protect the millions of cultivators on Tianjian Star. It took more than a hundred years to build countless demonic formations. I, a human cultivator, can still survive to this day.

It’s all thanks to Senior Xuan Zhenzi…”

In front of Xuan Zhenzi, Yu Shengzi did not dare to say anything more, and gave a rough introduction to Xuan Zhenzi's origins.

Xuan Zhenzi was born in a sect with a true immortal ancestor in the Jinyang Galaxy. This sect is famous for its formations.

Nearly half of the mountain gate formations in the Jinyang Galaxy were arranged by Xuan Zhenzi's sect.

When the demons launched a war in the Jinyang Galaxy, Xuan Zhenzi's sect's mountain-protecting formation lasted for more than nine thousand years and killed countless demon disciples.

However, without rescue, Xuan Zhenzi's sect finally ran out of resources, and it was only a few hundred years ago that a demon king took action and destroyed Xuan Zhenzi's sect.

Before that, although Xuan Zhenzi and some fellow disciples at the level of Earth Immortal and above broke through and fought their way out, the entire Jinyang Galaxy was almost occupied by the demons, and they had no way of escaping.

After hiding in the starry sky for hundreds of years, Xuan Zhenzi was finally caught by a demon king of the demon clan and thrown to the Heavenly Sword Star.

However, Xuan Zhenzi is a cultivator at the Earth Immortal level after all, and he can still release a little bit of his spiritual consciousness in the depths of the earth.

Moreover, Xuan Zhenzi had other means. After he was thrown in, he was still not at the end of his rope, so he set up a formation in this underground space to protect the human cultivators.

“Senior’s meritorious deeds are immeasurable, and I admire you junior!”

After hearing Yu Shengzi's explanation and facing the Xuan Zhenzi in front of him, Su Xiaofan was really impressed.

In an environment filled with demonic energy everywhere, Xuan Zhenzi did not think about hiding resources to preserve himself. Instead, he took out spiritual stones and arranged formations. This was definitely not something ordinary people could do.

"Fellow Taoist Yu Shengzi, without the protection of Senior Xuan Zhenzi in the past, the demons let us mine here, are they just going to watch us die?"

Su Xiaofan said angrily: "If we die, who will dig the magic spirit stones for them?"

"The demons don't care about our life or death at all."

Hearing Su Xiaofan's question, Yu Shengzi suddenly smiled bitterly, "I don't know how many cultivators on Tianjian Star have died. How can they care if they catch them after they are dead?"

Moreover, the demons have sinister methods. They will use elixirs that stimulate cultivators’ potential in exchange for demonic spirit stones. Once we take those elixirs, our life and death will no longer be under our control..."

After hearing Yu Shengzi's explanation, Su Xiaofan realized that what happened on the Sky Sword Star was not that simple.

How could cultivators who were captured by the demons willingly mine for the demons? Initially, most of the cultivators hid in the mineral veins and used the spiritual power that was imprisoned in their bodies and could not be released to fight against the demonic energy.

However, without the replenishment of spiritual energy, this kind of confrontation cannot last for a long time. In the end, the cultivator will still be eroded by the evil energy and become half human and half devil.

In this case, if the cultivator still wants to live, he can only use the magic spirit stone to exchange for a pill called the Demon Transformation Pill in the hands of the demons.

After taking the Demon Transformation Pill, the cultivator can suppress the demonic energy, but the effect of one Demon Transformation Pill can only last for five years.

After five years, the cultivator must continue to exchange the magic spirit stone for the magic pill.

Cultivators are also human beings, and as human beings they want to live, because only by living can they have a chance to escape from Tianjian Star.

Therefore, regardless of whether the cultivators are willing or not, the vast majority of human cultivators are taking the Demon Transformation Pill to survive.

But most cultivators don't know that the Demon Transformation Pill's suppression of demonic energy is just an illusion, but it is actually corroding the physical body and spiritual consciousness of cultivators.

When a cultivator has taken twenty demon-transforming pills, and after digging up hundreds of years of demon spirit stones for the demons, the demon-transforming pill will explode in the cultivator's body, transforming the entire cultivator into pure demonic energy.

It was fed back into the veins of demonic spirits.

The viciousness of the demons is in this place. Not only do they want human cultivators to mine, but they even use dead cultivators to make new veins of demon spirits continue to flow.

Although they clearly know that taking the Demon Transformation Pill is drinking poison to quench their thirst, most cultivators still succumb to the demons under the thought of surviving day by day.

However, after Xuan Zhenzi was thrown into the mine, he changed the situation for millions of kilometers around him. The formation he set up protected the cultivators in the million-kilometer mine.

In the past one hundred years or so, no one among the cultivators from millions of kilometers away has ever handed over the Demon Spirit Stone in exchange for the Demon Transformation Pill.

Although the demons were a little surprised, they just thought that some powerful monster appeared in the mine and killed all the human cultivators, so they didn't pay much attention to it.

After all, the million-kilometer mine seems to be quite large, but for the entire Tianjian Star's mineral veins, it is only a drop in the bucket. Only the demons responsible for this area will care.

Therefore, in recent decades, most of the human cultivators who have been captured have ended up in this area.

Some demons also went down to the mines to check, but what those demons didn't expect was that Demon General-level demon-eating monsters were actually born in the mines.

The mine tunnel below is almost full of demon-eaters, and even the demon generals in the combined stage dare not venture deep into the mine.

There was an intermediate level demon general who was equivalent to the late Nascent Soul in the mine and was devoured alive by the Demon Devourer.

Since then, the mineral veins numbered one to ninety-nine have almost become a forbidden area for the demons.

The demons guarding the top were only responsible for throwing cultivators into the mine, but they no longer dared to go down to investigate.

The magic stones they collected were basically mined from mines No. 99 to No. 300, and the veins there seemed not to be affected at all.

In fact, this was done deliberately by Xuan Zhenzi. He did not extend the formation beyond Mine No. 99.

Otherwise, the entire mine would not be able to produce Demonic Spirit Stones, which would inevitably cause Demon Commanders or Demon King-level demons to come down to check, and then none of them would be able to survive.

"I understand. It turns out that those magic stones in the mine were thrown in there after we mined them."

After hearing what Yu Shengzi said, Su Xiaofan immediately understood that the demon-eating demons he had seen before were actually raised by human cultivators.

With the existence of the Demon Eater, the demons do not dare to go down into the mines unscrupulously, and human cultivators can keep the secret of this extremely magical formation.

But Xuan Zhenzi is now at the end of his rope, because after supporting the Demon Array for nearly a hundred years, the spiritual stones in the array are almost exhausted.

It has to be said that with only a dozen spirit stones, he can resist this demonic energy for hundreds of years. Xuan Zhenzi is definitely a genius-level formation master, and his attainments in formations far exceed his cultivation level.

"Then we shouldn't have so few people, right?"

Su Xiaofan looked at the crowds on all sides. These people were cultivators in the Nascent Soul stage. They were only responsible for delivering spiritual energy to the formation eyes. Someone else should be mining.

"Everyone else has gone to mine and will be back in an hour." Yu Shengzi said.

"Fellow Taoist Fanchenzi, since you are proficient in formations, do you know the storage formations?"

Xuan Zhenzi looked at Su Xiaofan and said, "My formation can only last three years at most due to the lack of spirit stones. I wonder if fellow Taoist Fanchenzi can teach me?"

"Storage formation?"

After hearing Xuan Zhenzi's words, Su Xiaofan had a flash of enlightenment in his heart. He knew where the spiritual stones that Fan Chenzi had set up the Demon Array came from.

Presumably before Xuan Zhenzi was captured, he carved a storage array on himself and then hid spiritual stones and other cultivation materials inside it.

But deep underground, the suppression of the will of the powerful demons was not so strong, so Xuan Zhenzi could use his spiritual consciousness to take out the spirit stones in the formation, set up the ultimate demon formation, and rescue these cultivators.

However, Xuan Zhenzi's move also exhausted the sect's resources that he brought with him to break out.
To be continued...