Lu Xianyun felt that although Su Yueyin looked like a cold goddess, she was actually quite cute.

As to whether there is really something that can nourish the brain, even in Lu Xianyun's previous life, when science was already so advanced, there was still no definite answer to this question.

For example, people used to say that walnuts are good for the brain, but later they said that walnuts are no longer good for the brain.

For example, some nutritional supplements for the brain were later said to be a tax on IQ.

Now that he was in the world of cultivation, Lu Xianyun only believed in the system. If the system ever said a dish could improve his brain, then it would truly do so.

"What I mean is, you need to rest and eat something to replenish your brain's nutrients. The brain also needs rest, and it will be more flexible after rest."

Faced with Su Yueyin's seriousness, Lu Xianyun could only explain it this way.

Su Yueyin ate something, went to dig for some more minerals, and then re-entered the library.

But the others were not that stupid, and they finally realized that they could go back after coming out.

So, these people now have one more thing to do in their days.

They hunted ferocious beasts, dug spiritual stones, read books and studied every day, and their lives were quite fulfilling.

However, because they knew there was nothing else, they basically didn't go to other places in the ruins except the library.

If you want to go somewhere, go to the central area. There is nothing else to go to elsewhere.

On this day, Lu Muyun suddenly had an idea and went to the areas that looked like disciples' rooms.

He remembered that he met his first ghost in this disciple room area!

The disciple rooms are divided into advanced and ordinary rooms. Lu Muyun didn't know why he was transferred to the advanced disciple room that day.

Because Lingxiao Sect built a city, the disciples' rooms were built in a centralized manner.

As for the other sects established in deep mountains and old forests, I heard that their outstanding disciples can choose a place with abundant spiritual energy on the mountain to open their own cave.

This way, if there is someone you have a bad relationship with, you can live far away from him.

Wow, there is a two-story building here?

Lu Muyun walked into a room.

When you reach the second floor, you can look out into the distance. It turns out that the scenery at a high place is really different!

But suddenly, Lu Muyun found that he couldn't move again.

No way? Again?

At first, they deliberately searched everywhere in the ruins to see if there was anything that could trigger it, but they found nothing.

But now this is an unexpected result?

This feeling was already very familiar, so Lu Muyun relaxed himself and did not resist, allowing himself to be controlled.

He involuntarily looked towards the sect gate. At this moment, a man was coming in on a sword, but landed in front of the sect gate.

Because they were flying so fast, Lu Xianyun didn't see the person's face clearly, only a blurry figure. But for some reason, this figure seemed familiar to him.

It seemed that he was not from this sect, so the disciples guarding the sect did not let him in directly. Instead, they let him in after he came in to report.

The figure was very familiar with Lingxiao Sect. He passed through the outer area with ease and headed straight for the main hall.

Then, Lu Muyun immediately went downstairs and followed the man.

Lu Muyun could feel that Cong Zhongxiao was in an unusual mood at the moment, but for some reason he was dodging and evading, as if afraid of being discovered by the person in front of him.

The man entered the hall, but Lu Muyun turned over to the roof and lifted up a tile at a specific position on the roof.

Through the tiles, he could see what was happening in the hall.

Inside the hall, the person who had just entered asked the Sect Leader, "Master Bai, is this true? Did Cong Zhongxiao really...did he really fail to survive the heavenly tribulation and perish?"

Sect Leader Bai had a sad look on his face and nodded.

"This is impossible! I don't believe it!" The man shook his head desperately.

"He is the most gifted person in the cultivation world in the past hundred years, and the one with the greatest hope of transcending the tribulation and becoming an immortal! With his talent, transcending the tribulation is a piece of cake. How could he possibly fail?"

Sect Leader Bai sighed and said, "Who could have thought that the heavenly tribulation would change so suddenly? It was clearly over, but there was another heavenly tribulation——"

"No matter how many more there are, Cong Zhongxiao can handle them easily. This is impossible!"

"But no one expected that this calamity would suddenly change. He was completely unprepared."

The visitor slammed his thigh in anger. "I promised to help him protect the law! But he said that overcoming the tribulation was easy and he didn't need my help! I didn't expect that when I came back, I would hear such news!"

Sect Leader Bai looked at the man with a complicated expression, then raised his head and met a pair of eyes on the top of the hall.

However, Sect Leader Bai didn't seem surprised at all, and there was even a hint of inquiry in his eyes.

Lu Muyun shook his head.

Sect Leader Bai sighed softly and said to the people in the hall, "Bian Guanyue, I know that you and Cong Zhongxiao are evenly matched and appreciate each other. We compete with each other, but we also become close friends. So there is something I must tell you."

"What?" Bian Guanyue looked up at Sect Master Bai.

"Don't undergo the tribulation." Sect Master Bai stared at him, saying seriously. "You and Cong Zhongxiao have equal talent, and I know you'll soon undergo the tribulation. But if you don't want Cong Zhongxiao to die in vain, then don't undergo the tribulation!"

There was some confusion in Bian Guanyue's eyes, as if she didn't quite understand what Sect Leader Bai meant.

Those eyes seemed to be saying: You, Sect Master Bai, don't seem narrow-minded. Could it be that because your disciples failed to successfully transcend the tribulation, you won't let me? So what's the trick here?

Sect Leader Bai knew he didn't believe it, and he couldn't bear to see such a genius go to the immortal world and be treated like a slave, so he said, "This is Cong Zhongxiao's last message. Don't go through the tribulation! If you believe him, then listen to him!"

Unexpectedly, Bian Guanyue's eyes suddenly turned into suspicion.

"Death by a heavenly calamity means the soul is scattered, so how can there be any message left behind? Sect Master Bai, are you hiding something from me? Is there anything you haven't told me yet?"

Sect Leader Bai knew that talking too much would only lead to mistakes, so he shook his head and said no more.

Bian Guan Yue can only say goodbye.

Lu Muyun was still on the roof of the main hall, watching Bian Guanyue leave the sect.

A voice came from the hall, "Come down!"

Lu Muyun jumped down and walked into the hall.

Sect Leader Bai said to him, "Are you really not planning on meeting him? It's clear that Bian Guanyue still cares about you as a friend."

Lu Muyun looked out the door and said, "It is precisely because he and I have a mutual understanding that I cannot appear in front of him.

"If he knew that his most admired friend and rival had resorted to such a thing as possessing another's body in order to survive, how would he feel?

"Let him think I'm dead!"