On Saturday morning, Xia Lu came to Hao Tian's house with fruits as agreed.

Xia Lu sat on the sofa in the living room, a familiar environment, a familiar girl, and an aunt who was impressed but not too familiar.

The aunt is Hao Tian's mother, Teacher Yin Meilan Yin.

"Xia Lu, you are welcome to come to our house, come, drink tea. Teacher Yin poured a cup of tea for Xia Lu.

"Thank you, Mr. Yin. Xia Lu took a sip of tea from his teacup, it was not the first time he had been here, he had enjoyed himself in the bedroom, living room, bathroom and Hao Tian here.

It's just that Teacher Yin didn't know about this situation, and she thought that Xia Lu came to their house for the first time.

Teacher Yin said to Xia Lu: "Listen to Tiantian, you have participated in a national key scientific research project and achieved very excellent results, and even the Ninth Academy wants to send you to Yan University for special training?"

Xia Lu nodded and said, "There is indeed such a thing, but I refused." ”

Teacher Yin smiled: "Xia Lu, Xia Lu, counting this time, you rejected Yan University twice, and the last time was the college entrance examination to choose a school." So how do you think about your future?"

Xia Lu said: "I am a science student, I will definitely be engaged in science work in the future, where to develop specifically, and where I will go, I don't think I have to make a conclusion now, after all, I didn't finish my freshman year." ”

"That's right. Teacher Yin said, and then she asked Xia Lu's parents in a natural tone if they were okay?How is the business of your convenience store?When will your family's newly bought house be closed?

Xia Lu replied one by one, my parents are in good health, my store's business is making steady progress, and my family's newly bought house will be closed in the second half of the year.

Teacher Yin expressed her satisfaction and stayed at Xia Lu for lunch at her house.

Xia Lu and Hao Tian have both been to each other's homes and met each other's parents, and their relationship has been recognized by both parents.

was ordered to fall in love, Xia Lu and Hao Tian became more and more open.

Wednesday, May 12.

After Xia Lu and Hao Tian finished their respective studies, they stayed at the Orange Crystal Hotel that night.

The two did it for a night.

Thursday, May 13.

The same plot is playing out again at Orange Crystal.

Friday, May 14.

Hao Tian said to rest for one night and don't go to open the room.

Xia Lu rejected the truce proposal.

The two continued to stay at the Orange Crystal Hotel and battled until early Saturday morning.

Xia Lu said that he went back to his home on the weekend to adjust his physical state and mental outlook.

Hao Tian dismissed the truce proposal.

The two fought until the early hours of Monday morning at Orange Crystal, and then went back to their respective schools.

The relationship between Xia Lu and Hao Tian has reached 45,621 points.

Xia Luai's skill valuation exceeded the 20,000-point mark.

I can't open a house anymore, Xia Lu doesn't have much money in his hands.

To go to Hao Tian and Xia Lu's house to do it, you need to wait for the opportunity.

Monday, May 17.

Xia Lu's first class in the morning was Advanced Mathematics.

In fact, there is no need for Xia Lu to listen to Professor Yu Feng's high math class, because his mathematics level has reached the standard of mathematics graduate students (this is Professor Yu Feng's evaluation of Xia Lu).

But Xia Lu still came to the classroom, he had to find something to do, something that had nothing to do with women.

Maybe it's related to the continuous improvement of love's skill valuation, and Xia Lu's desire in that area is getting stronger and stronger.

I want to do it.

I want to do it every day.

It is uncomfortable not to do it.

The more you do it, the more spiritually you are.

For the past five days, Xia Lu and Hao Tian have been doing it in the hotel every night.

On weekends, there are two days of day and night, until 3 a.m. on Monday.

After sleeping for a few hours, Xia Lu arrived at the class of high math class on time this morning, and he was not depressed, but full of vitality.

In class, Professor Yu Feng talked about an interesting mathematical problem:

"The Kakutani conjecture, also known as the hail conjecture, refers to a natural number x, if it is an odd number, multiply it by 3 and add 1, if it is an even number, it precipitates the even factor 2 to the nth power, so that after several times, it finally returns to 1. No matter how large the number of values in this process, it will fall quickly like a waterfall. The other numbers, even if they are not, will inevitably return to the cycle of pure even numbers 16-8-4-2-1 after several transformations. ”

The Kakutani conjecture has not been thoroughly proven since it was proposed in 1976, and it has been described as the new Fermat problem. In this lesson, I am not trying to prove the Kakutani conjecture to you, but I have derived a new and interesting reflection from the Kakutani conjecture......"

The "thinking" in Ms. Yu's mouth is usually translated into math homework.

Xia Lu was not very interested in the usual homework assigned by Teacher Yu, but he was deeply attracted by Kakutani's conjecture.

The Kakutani conjecture itself is interesting, but of course, it is also very difficult.

Xia Lu undertakes a scientific innovation task, and he has no clue, but now he has direction.

"If I could prove the Kadotani conjecture on my own......"

The more Xia Lu thought about it, the more excited he became, and the more interested he became in Kakutani's conjecture.

Regardless of whether or not Kakutani's conjecture can be proven, it is always possible to study it first.

After the advanced mathematics class, Xia Lu came to the library, and the purpose of his literature review was very clear--- direction of number theory.

"It is generally accepted in the academic community that the Kadoya conjecture cannot be proven. ”

"Instead of spending time on the Kakutani conjecture, it is better to verify the Gochai and Riemann conjectures. ”

"I don't agree with the general view in academia that the Kakutani conjecture is just an additive number theory problem. ”

"Next, it's up to me to prove Kakutani's conjecture. ”

"Obviously, I set G(z)=g(z)exp(P(z))......"

And then ...... And then there was no then. ”

Xia Lu frowned, this Kakutani conjecture is really difficult to do!

However, the more difficult the problem, the more Xia Lu wanted to deal with it.

"Brain power...... I need to improve my brain power......"

"Points...... I need more points......"

Academic problems make Xia Lu forget about other desires for the time being.

At night, Xia Lu came to a certain room in Orange Crystal.

This is the sixth day in a row, Xia Lu and Hao Tian opened a room in Orange Crystal.

Before doing things, Xia Lu asked: "Tiantian, isn't it a bit too much for us to do it without restraint?"

Hao Tian asked rhetorically: "You only have to answer me, do you want to do it with me?"

"Yes. ”

"Giggle......" Hao Tian smiled charmingly, she unbuttoned Xia Lu's shirt, she seemed to be addicted too.

Learn by day and do by night.

Xia Lu doesn't want to deliberately suppress his desires, since he wants to do it, and Hao Tian also loves to do it, so do it.

Do it to your heart's content, indulge in it, and do whatever you want.

I only did it twice tonight.

Slightly less than the average number of times in the previous five days.

But the quality was high every time tonight, the highest in six days.

The two hugged each other and slept after they were done.

It's dawn, Tuesday.

Xia Lu swore that he must not do it today, and must take a day off.