Lu Xiang almost never shows her emotions to others, and it is difficult for you to read her mood through her expression.

I don't laugh when I'm happy, I don't jump when I'm angry, and when I encounter something depressed, I just huddle in a chair with my knees hugged and staring at the hospital floor in a daze like I am now.

Song Lan sat beside her, he knew that the truth just now seemed to have caused a critical blow to Lu Xiang, "Actually, as far as I'm concerned, you were quite cute like that just now." ”

This is not a lie.

Song Lan has always believed that the power of human brain supplementation is very powerful.

It is true that Lu Xiang's almost stiff sneer is easily reminiscent of a murderer, but as long as Lu Xiang's background is supplemented by brain supplementation, you can immediately understand the beauty of contrasting cuteness.

For example, a cold-faced female boss who is not good at words secretly practices smiling for you.

To be honest, for Song Lan, who has been single for more than 20 years, this idea is still very attractive.

"Honestly?"

Lu Xiang turned his face sideways and stared directly at Song Lan.

"To be honest, in fact, everyone has something that they are not good at, and sometimes there is no need to push yourself too hard."

Song Lan tried to start psychological counseling for Lu Xiang, "Just like me, I've never been very good at calculus. ”

"You're not good at calculus?"

It's just that he never expected that his psychological counseling would be exchanged for the other party's surprised eyes.

Isn't it normal not to be good at calculus?

Could it be that the people of 2166 are all masters of calculus?

"I used to fail exams."

"I can teach you."

"It's just an analogy, I mean ......"

"Right now."

In fact, the three words "calculus" alone already made Song Lan want to refuse, but as soon as he raised his eyes, he met Lu Xiang's eyes, her eyes seemed to be shining, sweeping away the previous haze.

It's not hard to see that she really wants to tutor herself in calculus.

Song Lan gritted her teeth and stubbornly held back the words of refusal.

The eldest husband was born between heaven and earth, how could he be frightened by calculus!

It's just that Song Lan, as a person who has never listened carefully to high math classes in college, never expected that she would start a new round of learning calculus in 2166.

After a while, he realized that Lu Xiang's mathematical skills were not fakes, and she had really made achievements in the field of advanced mathematics.

What Song Lan didn't expect was that during the counseling period, Lu Xiang even softened her expression, and when it came to excitement, she smiled, different from the previous stiffness, this is the emotion is from the heart, at this moment, it is like a little girl who is eager to share her treasured toys with other friends.

The speed of time seemed to speed up, and in a flash, an hour passed in the blink of an eye.

After an hour of study, Song Lan understood one thing.

Lu Xiang looked so good when he laughed.

As for calculus......

What is the Green Formula?

"I didn't expect you to be so good at math."

In order to avoid Lu Xiang from conducting a surprise test on him, Song Lan had to divert the topic first, and through Lu Xiang's tutoring, he discovered one thing - Lu Xiang is not only good at mathematics, she seems to really like this world built of numbers and reason from the bottom of her heart.

Her undisguised love makes a person like him who can pass and succeed a little ashamed.

"Because the people who taught me these things once said that this discipline is the crystallization of human reason, and it is the key that opens a door."

Lu Xiang didn't seem to realize that the two red glows on her cheeks were clearly visible, and she said, "The one who holds this key will one day be able to open the door to the third way." ”

Wait a minute......

The third way?

This sudden amount of information caught Song Lan off guard.

He vaguely remembered that on the night of the Chai Ke case, Lu Xiang had popularized to him three ways of rescuer assessment, one was the prosthetic implant road belonging to the kryptonite player, and the other was the physical refining road belonging to the Liver Emperor, but the third road was jumped by Lu Xiang on the grounds of "it's none of your business".

However, the way she spoke of the third way that day was completely different from what she was now.

Lu Xiang's tone that night was cold, which seemed to evoke a not very pleasant memory for her, and now, although Lu Xiang's smile was very shallow, Song Lan could feel that she was very happy.

In other words, the prerequisite for embarking on the third path is to master advanced mathematics?

After summarizing, the three ways to become stronger in 2166 have been vaguely revealed in front of his eyes - this seems to be an era that belongs to the Kryptonite Boss, the Liver Emperor and the Xueba.

That's it.

He has no money, he is lazy, and he has not even mastered advanced mathematics.

It seems that in the year 2166, where competition is fierce, he is destined to be a salted fish.

However, salted fish also has dreams.

Song Lan has not forgotten the purpose of his coming here today, he is still shouldering an important mission at the moment, and now is the moment for him to blow the horn of attack.

After tutoring him on calculus knowledge, Lu Xiang's bad mood had been swept away, and Song Lan took advantage of the good atmosphere to take out her mobile phone and tune the webpage to the movie she had searched before.

This is a classic movie that tells the story of the protagonist who fakes his death, escapes the siege of the enemy, and finally completes the counterattack in an unexpected way for the enemy.

is essentially a cool movie.

"Someone recommended me that this movie was good before, and it was good to watch a movie when I was tired of studying."

"I ......"

"Proper relaxation is also important."

Without waiting for Lu Xiang to refuse, Song Lan chose the option of online play.

Lu Xiang originally wanted to refuse, she had never been interested in popular movies, but when she thought that Song Lan rarely came to visit the class, she did not refuse and watched the movie quietly.

The total length of the movie is 2 hours and 13 minutes, and the overall structure of the plot is still carved out of the same mold as other movies of the same type, and even the design that fans boast of hiding the world through the fake death of the protagonist has long been used up in other movies.

However, what Song Lan needs now is such a fast-paced popcorn movie.

"I really didn't expect it, the protagonist could actually think of fooling the villain by faking his death, I really thought he was dead at the time."

With the appearance of the ending song, he sighed with a clear conscience.

Lu Xiang, you must understand my hard work!

And this time, Lu Xiang seemed to really hear his inner prayer, and she glanced thoughtfully at the ward.

"You go back first."

"I have work to do." ”

"Then you get busy first, and I'll come back tomorrow...... What would you like to eat tomorrow? ”

"Egg tarts."

"Okay."