In the cultivation room on the third floor of the Rainbow Tower, Qin Shuang of the formation system opened his eyes suspiciously.

The concentration of spiritual energy in this tower is four times that of the academy, and due to the continuous supply of spiritual energy in the rainbow body under the tower, this spiritual energy concentration has always been very stable, and the more than three months she has been cultivating in it have also proved this.

However, there have been some inexplicable fluctuations in the past two days, and the fluctuations are not big, but this fluctuation will always affect the cultivation, every time Qin Shuang needs to stop for a few minutes, and then continue to cultivate after the aura is stable, otherwise it will take more time to adjust the aura absorption speed than these few minutes.

It is said that there are occasional fluctuations in the floors above ground, but they also occur a few times in decades, and the frequency is not high.

It would be good if you got the first place on the safflower list, then you can go to the ground level to cultivate, not only can you enjoy six times the concentration of aura, but you will not have this kind of trouble, the source of aura is the rainbow body, and naturally the lower it is, the more abundant it is, the more difficult it will be to fluctuate.

Lin Chu!

If it weren't for the fact that this guy disappeared after winning the first place in the double list, he would have given him some color to see.

Thinking of this, Qin Shuang couldn't help but grit her silver teeth again.

The concentration of aura stabilized, Qin Shuang put away his resentment towards someone, collected his mind, and began to continue cultivating.

She didn't know that she was not the only one who encountered this situation, but all the students who cultivated above the third level on the ground had been affected by this aura fluctuation in the past two days.

......

"What's the matter with you, student? It's rare to have a chance to enter the tower, so it's not good to practice inside the room and shake it outside. Seeing that your cultivation is not high, you don't cherish such a good opportunity, you simply don't have a trace of enterprising. "A **** mask with a frost mask is training people in the hallway.

"Yes, what the teacher said, I'll go back right away. Lin Chu hung his hands at his side, lowered his head and admitted his mistake,

"Also, how did you get in, no one told you that students can only cultivate on a few layers of the ground? ”

"Oh, I don't know, it was the head of our department who brought me in and said that this was the benefit that I got the first place in the double list. ”

"You are the Lin Chu who opportunistically won the first place on the double list?" **** It seems that the first impression of Lin Chu's double list is not very good, "No wonder you are so unenterprising." ”

Shaking his head, the **** stopped talking and left directly.

It's just that this student's cultivation of the sixth layer of Qi refining can actually go down to the third underground layer, and it is not simple, but there is a problem with this cultivation attitude.

Before entering his cultivation room, a trace of emotion flashed in ****'s mind.

Lin Chuke, who was walking towards the stairs, didn't know that he had been labeled as "not working hard" and "having a problematic attitude towards cultivation", but he was full of excitement and ready to go back to cultivation.

Yes, Lin Chu is not on the basement floor where he should be, but on the third basement floor.

Originally, he was just staying in his room and cultivating peacefully, however, in just half a month, his elixir spirit stone was "shattered", and after that, the cultivation progress slowed down suddenly.

You must know that what he cultivates is the basic cultivation method, and the rate of absorbing spiritual qi itself is not too high, coupled with the devouring spiritual power of the self-sacrificing technique, his cultivation speed under the concentration of seven times the spiritual energy is actually about the same as the cultivation speed of those heavenly sons in the academy at twice the concentration.

And in the first half of the month, with the supply of aura in the recycle bin, his cultivation really had a feeling of flying speed, and when the recycle bin was empty, the speed slowed down to make him unhappy.

If you continue to cultivate like this, it will always be faster than the outside world, and if you change to someone else, you can only cultivate honestly.

However, as if the ghost was a god, Lin Chu thought of the recycling function of the recycle bin.

Recovering the aura, that's what he wants to do.

Originally, in the outside world, this recovered aura was similar to what he absorbed through normal cultivation, and it dissipated immediately after recycling, which was no different from direct cultivation, but what about this tower?

As soon as he thought of it, Lin Chu immediately left the room and tiptoed to the corridor in the tower to try the aura recovery.

Effective.

The absorbed aura slowly filled the space of the recycle bin, and the initial aura mist slowly evolved into a dense mist, indicating that the recovery rate had exceeded the speed at which it dissipated into the body.

Lin Chu, who was overjoyed, was able to recover vigorously for two days, and then returned to the room to cultivate, and the speed really improved by leaps and bounds, allowing him to cultivate comfortably for another five days.

And today, he tried to go down to the lower level, the lower the concentration, the higher the concentration, he naturally wanted to go down as much as possible, as for the spiritual pressure problem that Gu Tiancun said, he also encountered it, which was the pervasive aura squeezing and infiltrating the body.

However, due to the practice of absorbing all the way forward, the spiritual pressure he received was relatively not much, and at the same time, the sacrificial technique also reduced some of the pressure, and he actually went down to the third floor underground.

He was desperately trying to recover the aura at the bottom layer, and the aura in this tower was supplied from the bottom up, and the supply of aura in the upper layer was naturally a little less, which led to a decrease in the concentration of aura in some layers on the ground, and the magic circle in those layers did not have enough aura to transform, which naturally led to the fluctuation of aura in the room, which was what happened to Qin Shuang.

......

A month later, Lin Chu walked out of the room with shining eyes.

Clenched his fists and felt the cultivation of the seventh layer of Qi refining, Lin Chu took the timekeeping jade slip on his body and walked towards the lower tower again.

After nearly two months of frantic cultivation, he finally completed the cultivation of this stage of the self-sacrificing technique, and at the same time advanced his cultivation to the seventh level of qi refining.

Now there were three days left in the tower, and he didn't plan to spend these three days on cultivation anymore.

The aura in the recycle bin had been emptied again, and Lin Chu's idea now was to recover as much aura as possible under the tower. This opportunity to enter the tower is not much, and it cannot be wasted.

2 basement floors, 3 basement floors, 4 basement floors.

All the way to the fourth floor, Lin Chu already felt as if he was in a quagmire, and every step forward was like pushing away hundreds of catties of quicksand.

Start, recycle.

Particles of aura condensed dots appeared in the recycling bin, and this rich aura even dissipated naturally while shedding a little bit of "spiritual sand" in the recycling bin.

......

The students cultivating in the above-ground layers of the Rainbow Tower were once again caught in the troubles of aura fluctuations, and the students on the fourth and fifth floors on the ground even sadly found that this fluctuation time was getting longer and longer, and if they continued on this trend, they would not be able to cultivate normally at all.