By comparing the two cultivation methods, Lin Mu also knew why Lu Shouyang's breath was so complicated.

It turns out that because the aura on the earth is very thin, it is impossible to use the pores of the whole body to absorb and refine the aura, just like the common practice method in the cultivation world.

But only through breathing, a large number of inhalation of air, in a unique way to refine the air contained in the thin aura, and this special method, will affect the purity of the refined Qi.

However, if you want to absorb aura from the air, you must first break through the micro mirror in the late foundation period. Only with the strong perception ability of the micro mirror can you sense the thin aura of the air.

The reason why Lin Mu can sense the existence of Aura now is that his soul power is too strong, which is the soul of the cultivation master in the later period of the robbery.

Even if most of the soul power has been lost, the rest is not something that ordinary people can look up to. It's just that for some special reason, the present Lin Mu can't use his soul power.

Thinking of this, Lin Mu sighed helplessly. His left hand stretched out in front of his eyes. With a black dense air, a simple black ring appeared on his index finger.

The origin of this ring is so big that it makes countless people blush even in the realm of cultivation.

Originally, it was one of a set of ancient immortal suits. There were seven pieces in this set of ancient immortal suits. At the beginning, Lin Mu only got this ring.

Because the level of the ring is far beyond the realm of cultivation, even if he got the ring, Lin Mu never really mastered the usage of the ring, and could only be used for simple storage.

It's thanks to the mysterious ancient immortal ring that he escaped the nine real robberies this time. If it hadn't been for the ring's final acceptance of his soul, he would have been dead long ago.

Lin Mu sighed gently, and his heart moved. The ring slowly disappeared again. Today, although he can still use the ring to store things, he can only sense a small space.

The size of that space is only less than two cubic meters, and it is still an empty place without anything.

After tossing about for a night, there was already a dim light outside, and it would be daybreak soon. Instead of sleeping, Lin Mu closed his eyes and went to the library at daybreak.

If you want to integrate into the world quickly, it is particularly important to understand the history of the world. Therefore, Lin Mu simply chose the library with numerous and comprehensive collections.

The library of Donghai university is so large that it can almost match the National Library of Huaxia. It covers tens of thousands of square meters.

After entering the gate, Lin Mu carefully looked at the location map of the gate, found the location of the historical area, and immediately walked over.

In area B on the third floor, there are more than ten huge bookshelves, all of which are heavy books. Almost the whole history of human development can be found here.

Since he was in China, Lin Mu of course started from the history of China. After selecting a few books, he found a window seat and sat down to read them quietly.

As time went by, just as Lin Mu was absorbed, a faint quarrel came over. Although the sound was not very loud, it could still be heard because the library was very quiet.

The ear moved slightly, and the original weak voice was amplified several times. This is the strength of the sensitive environment. He can freely manipulate the five senses. Now Lin Mu has improved his hearing.

However, Lin Mu was a little surprised, because one of the voices in the quarrel was someone he knew. It was Du Xiaoyue who was humiliated by him yesterday.

Now that he knows who it is, Lin Mu immediately loses interest. Although Du Xiaoyue is very beautiful, he doesn't like him, so he doesn't care about so much.

As the mind moved, the voice in his ears immediately decreased, and Lin Mu's attention returned to the book again.

"Wang Dong!" Du Xiaoyue appears very angry, Liu Mei upside down, his eyes are full of anger, "I warn you, don't pester me, don't think that if you have some money at home, you can show off in front of me! Who do you think I am, Du Xiaoyue? "

"Xiaoyue, I know you are from the Du family. We are just right."

On the other side of the table, a well-dressed boy was laughing obscenely, "I'm the future heir of the Wang family. It's not insulting to be with me, is it?"

"Pooh! Who are you? The Wangs will be inherited by you? "

Du Xiaoyue disdained a smile, and then turned away, a moment also don't want to see such a disgusting person.

However, Wang Dong was reluctant to follow him, while he was still chattering: "don't go, Xiao Yue, is it because you have an engagement with the Lin family?"

"I heard that Lin Mu is stupid. How can he be worthy of you?"

Just as Wang Dong finished his sentence, Du Xiaoyue, who passed the bookshelf, turned her eyes and accidentally saw Lin Mu sitting alone by the window not far away. Her eyes were shining. She stopped and shook her head at Wang Dong with a smile.

"The shepherd you said is sitting there."