Twenty-one credits.

Now Yu Beiming has twenty-one credits in his hands.

In addition to the fourteen credits he had earned through hard work and excelling in his elective classes, he had earned seven credits in the Demon Suppression Tower.

This is just a day's gain, and it is only in terms of credits, not to mention the knowledge and combat experience that Yu Beiming has comprehended and learned in the process of breaking into the tower.

"It seems that I will have to go to the Town Demon Tower more in the future, and I am afraid that I will be able to get all the credits required for four years of college. ”

Yu Beiming muttered to himself, with a smile on his face.

The scoring system of the Demon Suppression Tower is very simple, and the score is calculated by the n-1 power of two. n indicates the number of floors passed.

That is, you will get one credit for breaking through the first layer, two credits for breaking through the second layer, four credits for breaking through the third layer, and so on, if you break through to the end, it will be more than two hundred credits.

The harvest of breaking into the Demon Town Tower once can be compared to the hard work of others for several years, in the words of the previous life, it is to get rich overnight.

Of course, it must be difficult to break into the end, but people must always have dreams, otherwise, what is the difference between them and salted fish?

Yu Beiming was thinking wildly as he walked towards the library area.

In a short time, a four-story attic building appeared in front of him.

This attic is very in line with the aesthetics of the Dragon and Tiger Academy, antique, the whole attic is built of special wood, exuding a faint fragrance, this strange fragrance has a special effect, can ensure that the paper will not decay and damage with the passage of time, is conducive to the preservation of books.

"Hello, I'm here to exchange for spiritual skills, this is my portable jade pendant. Yu Beiming walked to the depth of the teacher who adhered to the library area, and said respectfully.

The teacher was a middle-aged man with a strong hairstyle, wearing a pair of glasses at this time, and was looking down at a book.

The teacher casually took the portable jade pendant in his hand, Yu Beiming only saw a slight flash in his hand, and then threw the portable jade pendant back.

The teacher's careless words came from his ears:

"The library area is divided into four layers, the first layer is ordinary books, introducing all kinds of historical events, and there are some spiritual skills that do not enter the stream, the second layer is the lower grade and the middle grade spiritual skills, the third layer is the upper grade spiritual skills, there are special people in charge of it, when the time comes for you to select the spiritual skills, you can report to them, remember, you must not bring the spiritual skills out privately, otherwise you will bear the consequences. ”

There is no fourth layer, so what is the fourth layer?

Yu Beiming was curious, but he didn't ask, the time has not yet come, and it is not too late to ask when he is strong in the future.

Directly skipping the ground floor, Yu Beiming began to find it from the second layer.

His original intention was to have at least a mid-grade flying spirit skill, and if he had been a top-grade one, of course it would be even better.

Following the marks on the bookshelf, Yu Beiming quickly found the area where the middle-grade spiritual skills were placed, compared to the low-grade spiritual skills on the side, the number was much less, accounting for only one-third of the entire floor, but there were also hundreds of copies, which fully demonstrated the strong heritage of the Dragon and Tiger Academy, or the Dragon and Tiger Sect.

For example, those small and medium-sized psychic master academies, don't say that there are so many medium-grade spiritual skills, and there are so many low-grade spiritual skills.

Thousands of years of inheritance, of course, retain these numbers of spiritual skills, of course.

The spiritual skills are placed in different locations according to their different attributes, and Yu Beiming went around and found the territory that belonged to the thunder attribute spiritual skills.

Compared with the spiritual skills of other attributes, the number of thunder-attribute spiritual skills that are scarce is actually not inferior at all.

Yu Beiming was stunned at first, but remembering that many of these spiritual skills were owned or created by the Dragon and Tiger Sect itself, it was clear.

Start looking for psychic skills.

Of course, it's looking for a well-priced, practical flying skill, and of course, if it's handsome, that's even better.

As for the top-grade ones, Yu Beiming will not exchange them for the time being.

First, it is too expensive, and even if he spends all the credits in his hand now, he may not be able to exchange them.

Second, the medium-grade spiritual skill is enough for him to use now, and when his strength grows in the future, he can forget about this medium-grade flying spiritual skill or upgrade it with the system.

The flying spirit skills here all belong to the spirit skills of the gods, and there is no one who has a spirit skill.

Yu Beiming has also understood this, because people and "gods" have different structures, if you want to fly, it will cost dozens or hundreds of times more spiritual power than "gods", which is not cost-effective, and psychics can also use "gods" when they can't fly, so this chicken rib spiritual skill has gradually been abandoned and placed under a layer as a display for everyone to learn from.

Soon, Yu Beiming found two flying spiritual skills that better met his requirements, one was called "Feng Shengyi", and the other was "Red Thunder".

"Wind Wings" pays attention to the aura of wings, in order to imitate the wings of birds, so that the "gods" can fly into the sky, the speed is not too fast, but the flight is stable, relatively easy to learn.

"Red Thunder Xing" wraps the thunder attribute spiritual power on the limbs of the "gods", and uses special methods to allow the "gods" to fly, which is extremely fast, but the disadvantage is that it is more difficult to learn and difficult to master.

The two spiritual techniques have their own characteristics and differences, but obviously, Yu Beiming is more inclined to "Red Thunder Xing".

Although the introduction says that cultivation is extremely difficult, but Yu Beiming doesn't believe in this evil, but don't forget, he has a system in hand, and even "Heavenly Thunder Zhaozhao" can be learned, not to mention others.

After choosing the spiritual skills, Yu Beiming didn't have the idea of staying in the library area for a long time, so he took it to the person in charge and started exchanging it.

"The medium-grade spiritual skill "Red Thunder Xing" belongs to the flying spiritual skill, and it needs to consume more credits, you need to spend twenty credits, are you sure?"

The person in charge is a young lady who works part-time here, and now she is looking at Yu Beiming with big eyes, quite a pitiful temperament.

Yu Beiming was still admiring the beauty of the young lady, but when he heard this price, his heart jumped suddenly.

Twenty seems to be a bit expensive, like an average medium-grade spiritual skill, but the academy only requires about fifteen. And I happen to have twenty-one credits, don't you feel like there's some coincidence?

seemed to understand the doubts in Yu Beiming's heart, and the young lady opened her mouth to explain:

"Because the medium-grade spiritual skills are indeed very precious, as far as the entire Dragon and Tiger Academy is concerned, I'm afraid there are not much, so the price will naturally rise, and the twenty credits also belong to the range of medium-grade spiritual skills, junior brother, do you want to exchange it?"

"Redeem!"

Yu Beiming gritted his teeth and nodded. Anyway, the credits earned are used to spend, and they can also enhance their combat power and make up for their shortcomings, so why not.

Holding the identity jade pendant, Yu Beiming entered the spiritual power in his body, and then scanned it on a thing similar to a scanning machine taken out by the young lady, just like scanning a QR code, and when he swiped it, the twenty-one words on the identity jade pendant immediately became one, which made Yu Beiming quite painful.

"Okay, this is the "Red Thunder Xing" spiritual skill you redeemed, remember, you only have three days to borrow it, and you must get it back after this time, and you can't show it to anyone other than you during this period, otherwise you will bear the consequences. ”

Yu Beiming nodded, indicating that he knew.

I took the jade slip with the storage of "Red Thunder Xing" and felt the warm breath on it, which made me feel better.

"Then it's time to put your head down and get some work done. Strive to learn "Red Thunder Xing" as soon as possible, and I don't know what it is like to fly?"

Yu Beiming put the matter of credits behind him and thought excitedly.