Because the card Xu Yao gave to Donna was the 2-star mana crystallization card he had just completed, Xu Yao was studying the 2-star mana crystallization card, and Donna knew about it.

I thought that this research would take a long time, but at this moment, Xu Yao took out the finished product, and it was not one.

If it was one, then Donna would think that it was done with the help of the repair effect of the relic tool, but at this moment, Xu Yao gave her more than 1 2-star mana crystal card, which means that Xu Yao really completed the research of the 2-star mana crystal card and mastered the method of making it.

"Hmm!"

Xu Yao nodded, and then advised: "Senior sister, don't disclose this matter for the time being, it will be very troublesome." ”

"I'm not going to say it." Donna said solemnly.

"Ahem, don't be so exaggerated, if someone really asks, you can say that it was the master or Uncle Wang." Xu Yao coughed lightly.

Now he chose to hide it just to avoid unnecessary trouble, and when the time is ripe, Xu Yao will choose to sell 2-star mana crystal cards to make money.

Of course, if it is exposed, Xu Yao can also throw the pot to Master Xiao Lori and Master Wang Feng'an, and take this pot easily with their strength, no one will even doubt it, after all, how can Xu Yao, a 2-star professional, research such an ancient relic as a mana crystal.

Only the powerful Mu Hanyan and Wang Feng'an have this ability.

"That junior brother, senior sister owes you a favor." After some reassurance, Donna suddenly said with a serious face.

Bai took the precious 2-star mana crystals that Xu Yao had worked so hard to make, and Donna had no money to give Xu Yao, so she could only use her favors to pay off her debts, hoping that she could help Xu Yao when she became stronger in the future.

"Okay, hurry up and cultivate and improve your strength." Xu Yao waved his hand, although Donna is a 3-star professional, her mana reserves are very average, of course, it is enough to deal with ordinary battles.

But the next thing you have to face is the pirate, and the pirate won't tell you any rules, and then everyone may face more than one enemy. At this time, sufficient mana reserves are an important indicator to maintain the endurance of combat power.

Donna took the mana crystal card back to her dormitory to cultivate, and then, Xu Yao's gaze swept to Lin Bingru, who was quiet on the side.

"I don't have any money either." Feeling Xu Yao's gaze, Lin Bingru whispered. Although she was a little curious about Xu Yao and Donna's loud conspiracy just now, she didn't ask a word. Lin Bingru's temperament is obviously not the kind of person who likes to explore other people's secrets.

"I won't sell your cards this time." Xu Yao said with a smile.

"Ahh

Hearing that Xu Yao didn't sell cards to herself, Lin Bingru's face suddenly showed a look of disappointment, although she didn't have any money, she was still looking forward to Xu Yao's cards.

"Actually, I can make an IOU." Lin Bingru hesitated for a long time, and then slurred.

can make Lin Bingru say such a thing, which shows how much she is looking forward to Xu Yao's card in her heart.

Lin Bingru's somewhat hesitant and twisted posture shocked Xu Yao, as if he had seen a beautiful scenery that was rare for a thousand years.

"Classmate Lin, it seems that you haven't paid back what you owed last time." In order to enjoy more beautiful scenery, Xu Yao decided to tease her again.

Sure enough, hearing Xu Yao's words, Lin Bingru's indifferent face suddenly showed a look of shame.

"I owe you money, and I will pay it back as soon as possible." Lin Bingru bit her lip and got up, ready to leave.

Seeing that the excitement was a little too much, Xu Yao hurriedly grabbed her, "Okay, I'm joking." ”

After appeasing Lin Bingru, Xu Yao said with a serious face: "Classmate Lin, the 2-star strength is a little low. ”

Lin Bingru's mana reserves and card deck completion are actually not weak, her only deficiency now is the realm, Lin Bingru is not like Li Jin, her talent can reduce the consumption of natural spells, and she can use cards higher than her own star level.

Her talent is to increase the damage of frost-based spells, but her 2-star rating limits her ability to use more powerful frost spells.

Even if Xu Yao's card book contains a lot of 3-star frost spells, Lin Bingru can't use them, which is why Xu Yao is not ready to sell her cards this time.

Hearing Xu Yao's words, Lin Bingru was a little unhappy in her heart, you are still 2 stars, why do you dislike her. can think that Xu Yao can draw 4 stars with 2 stars, Lin Bingru still suppressed the unhappiness in her heart.

"Show me the construction method you are cultivating now, and I'll help you analyze it." Ignoring the changes in Lin Bingru's heart, Xu Yao continued to speak.

As soon as these words came out, Lin Bingru's eyes instantly glowed, and the original unhappiness disappeared instantly. Because Xu Yao wants to use that special method to help her analyze the construction method, so that she can quickly enter the 3-star level.

If the 2-star mana crystal card is the secret of Xu Yao and Donna, then Xu Yao's analysis and construction method with mathematical formulas and theorems from the earth is the secret between him and Lin Bingru.

Just as Lin Bingru was about to take out the construction method she was cultivating, she reluctantly stopped what she was doing.

"What's wrong?"

Seeing this, Xu Yao wondered.

"Classmate Xu, the construction method was passed on to me by the master, and I can't easily pass it on without the master's permission." Lin Bingru said a little lost.

She really wanted Xu Yao to help her analyze the construction method, but she couldn't pass on the construction method passed on to her by her master.

"Classmate Lin, who is your master?" Xu Yao knew that Lin Bingru worshipped a master, but he never asked who Lin Bingru's master was.

"Master, she's the leader of the Fire Demon Legion." Lin Bingru told the origin of her master.

"Is it Uncle Wang?"

Hearing the commander of the Fire Demon Legion, Xu Yao's first reaction was Wang Feng'an, but after thinking about it, Wang Feng'an did not accept Lin Bingru as an apprentice, and Lin Bingru was apprenticed in the academy, and Wang Feng'an was not in the academy.

"The master used to be the deputy head of the Fire Demon Legion, and after Mr. Wang left, he became a regular." Lin Bingru explained.

"It's Tranquility Senpai." Xu Yao reacted, "It's okay, Tranquility's predecessor is his own person." ”

According to what Xu Yao learned from Master Lori, that quiet senior had an inexplicable relationship with Master Wang. In Xu Yao's opinion, as long as it is an unclear relationship, there must be an inside story.

Because of Wang Feng'an, the relationship between that quiet senior and Master Xiao Lori is also good, Xu Yao, as the only personal disciple of Master Xiao Lori, should not have much problem taking a look at the construction method she passed on to Lin Bingru.

It's a big deal to let Master Lori say it when the time comes, it's really not good to give that quiet senior, and explode some of Uncle Wang's black material, it is estimated that there will be no problem.

"That's fine!"

Hearing Xu Yao say this, Lin Bingru also felt reasonable, because she often heard the master mention Teacher Wang, and the master accepted her as an apprentice, and a small part of the reason was that she had studied with Teacher Wang.

If it weren't for the fact that Xu Yao had already been accepted by Teacher Wang's junior sister, the master would even want to accept Xu Yao.

Without any worries, Lin Bingru immediately took out the construction method she was cultivating, she had been practicing this construction method for a while, and she had only comprehended 3 percent of it, which still had the guidance of the master, otherwise it would be lower.

During this period, Lin Bingru thought about using the special way he saw from Xu Yao to analyze it, but unfortunately Xu Yao directly told Lin Bingru the answer at that time, and Lin Bingru himself would not solve the problem at all.

If Lin Bingru wants to analyze it herself, then she will have a lot of things to learn, and it will not be able to be done in a moment and a half, so Xu Yao usually tells her to answer directly.

This time was no exception.

There are still 3 days before the operation, and 3 days is too tight, Xu Yao naturally does not have time to teach Lin Bingru mathematical knowledge from scratch.

Helping Lin Bingru analyze the construction method, Xu Yao is not without benefits, that is, Lin Bingru's construction method, Xu Yao can also master it, and then Xu Yao can use the compression method and the construction method to upgrade two levels in one go.

Of course, the biggest benefit is still Lin Bingru, because even if there is no Lin Bingru's construction method, Xu Yao can also get the construction method from Master Lori.

Xu Yao began to use the mathematical knowledge he had mastered to analyze the construction method, while Lin Bingru watched it carefully on the side, and helped him serve tea and pour water when he saw that Xu Yao was tired, but unfortunately Lin Bingru still couldn't let go, otherwise, Xu Yao would like to enjoy the service of rubbing his shoulders and pounding his legs.

"It's worthy of the construction method that the legion commander came up with, it's much more difficult than the previous one." Xu Yao put down the pen, rubbed his forehead, and continued to do the question with high intensity, which made him very tired, but this question was still not completed, and it would take at least a day.

Looking at the sky, it was already morning, and today we have to practice the team's cooperation, so this question can only be done at night.

"Woo!

”

Getting up and stretching, Xu Yao waved to Lin Bingru on the side, and then the two walked out of the dormitory.

In the open space outside the dormitory, Qian Ji and the others were already warming up, ready to start a new day of training.

"Senior Sister Donna, you seem to be a little different today." Li Jin looked at the energetic Donna with a puzzled expression.

Not only Li Jin, but Nangong Haoxuan also felt this way.

"Do you think so too?"

Donna said with a smug expression. Yesterday, she refined the 2-star mana crystal card given by Xu Yao, which made her mana reserves rise sharply, but the price was that her stomach rose a little, but fortunately she was a 3-star professional, and she was not retched like Xu Yao before.

"Senior sister, let's talk about it!" Nangong Ling affectionately grabbed Donna's arm with a look of anticipation.

"Secret!"

Donna looked mysterious, but she promised Xu Yao that she would not expose the 2-star mana crystal card.

"Senior sister is stingy!"

Nangong Ling said in a coquettish tone. However, at this moment, she already knew the reason, when she held Donna's arm just now, Nangong Ling felt the mana in Donna's body.

Donna is like this, and Xu Yao seems to be the same before, which means that both of them have treasures that can quickly improve their mana, which can't help but make Nangong Ling very envious.

As a priest, her task is to support everyone in the rear, and she can be recalled from the cemetery with confidence when the cards run out, so the amount of mana is very important to Nangong Ling.

As long as her mana doesn't run out, she can keep her companions from falling.

Therefore, the kind of treasures like Xu Yao and Donna that can quickly increase their mana are very important to Nangong Ling.

Of course, Nangong Ling knew that this kind of treasure was difficult to obtain, but she was willing to try it, and it was a big deal to exchange it for a treasure of the same level.

The Nangong family also belongs to the top big family in the East Country, and the background is still there.

mentioned Xu Yao, Nangong Ling found that Xu Yao was not there, it was already early in the morning, and he hadn't gotten up yet.

Not only Xu Yao, but Lin Bingru doesn't seem to be there.

"People who are so big, are they still lazy?" Qian Ji muttered, his heart was broken at this moment, because he missed Xu Yao's card and lost a chance to become stronger.

Just when everyone was wondering why the two hadn't come to gather, Xu Yao's dormitory door was opened, and then Xu Yao and Lin Bingru walked out.

As soon as Xu Yao and Lin Bingru walked out of the dormitory, they immediately felt a strange gaze sweeping over, and the lonely man and widow stayed in the dormitory for one night, which would be suspicious to anyone. Especially at this moment, Xu Yao's tired look was obviously overworked.

The strange gazes of everyone made Xu Yao's eyelids jump, but the current situation seemed to be useless unless he said something about the analysis and construction method, but this was obviously impossible.

The matter of constructing the method of analysis is too big, and it is even bigger than exposing the 2-star mana crystal card, and he can still shake the pot with the mana crystal card, so the mathematical formula theorem can't shake the pot.

"Morning!"

Xu Yao said hello to everyone as if nothing had happened.

The same Lin Bingru's face was still indifferent, although she was already panicked in her heart at the moment, but her indifferent expression helped her a lot.

Seeing the calm appearance of the person concerned, this can't help but make everyone feel that they are thinking wrong.

But no matter what, Xu Yao and Lin Bingru have an unclear relationship, which has become the consensus of everyone, as long as there is an unclear relationship, there must be an inside story.

"Ahem, let's start training." Nangong Haoxuan coughed lightly, and then started training with Qian Ji, Wu Feng and Nangong Ling.

On Xu Yao's side, Donna and Li Jin also came over.

"Xu Yao, things will arrive tomorrow." Li Jin opened his mouth, and he avoided the matter of Xu Yao and Lin Bingru coming out of the dormitory together just now.

"What you want will arrive tomorrow." Xu Yao nodded, if he could complete the transaction one day earlier, he would be able to use the money he earned to improve his strength one day earlier.

"Good!"

Hearing that the transaction could be advanced, Li Jin was excited.

Subsequently, everyone began to conduct squad training, speaking of Xu Yao's four people, 3 of them are mages, and the remaining one is also a legal profession, which really has no tactics at all, and then 4 people can stand in the rear and output.

Therefore, the training of the four of them ended after half a day, and Nangong Haoxuan was still running in, and the team match over there was much more reasonable.

Front-row warriors, back-row hunters, support knights, healing priests, however, it is precisely because of the proper class mix that they need to spend more time grinding in order to avoid mistakes in real combat.

On Xu Yao's side, after finishing the training, Li Jin went to check the transportation of the payment, which was related to his natural spell cards, and he didn't dare to be sloppy. Donna took the 2-star mana crystal card given by Xu Yao and went back to the house to continue her cultivation.

Xu Yao and Lin Bingru continued to solve the problem, preparing to complete the problem before nightfall, so that Lin Bingru could start practicing in the evening.

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Chapter 123: Improving the Strength of Your Teammates Free Reading.