At the door, Mr. Li led them to stand at the door of the office, and Mr. Li pointed to the door and motioned for the two to go in.

Li Xuekai didn't come back to his senses until this moment, he frowned and asked, "Is it Professor Feng?!" The mathematician I've heard of?! ”

Teacher Li looked impatient: "Yes, so don't talk nonsense, you know?" ”

Li Xuekai nodded, and immediately looked at Xue Xi: "Don't be nervous!" ”

Xue Xi: ??

Li Xuekai opened his mouth soothingly: "Although this big bull is indeed very awesome, he is also a human, don't be afraid!" We are still young now, and you have proved Batra's conjecture that we will not necessarily be worse than him in the future. ”

Xue Xi: ...... Did she leak a little scared somewhere?

But Feng Xingshen should be in the big guy group, the one who teaches mathematics, thinking about it this way, it's good to be able to meet the people in the big guy group again.

She lifted her misty eyes, and at this moment, the mist seemed to be blown away, and she shone slightly, and she took a step forward and pushed the door open.

Li Xuekai, who was about to persuade her again, not to be nervous: ??

Li Xuekai could only speed up his pace and followed Xue Xi into the office.

The people in the office seemed to be out, and when they weren't here, Feng Shiingshen kicked everyone out under the pretext of chatting alone.

Feng Shiingshen is a tall and thin old man, looking energetic, a pair of eyes seem to have light, but his skin is already wrinkled, his hair has turned gray, he is wearing a decent Zhongshan suit, is looking at them with a smile, which makes people feel more cordial when they look at it.

He opened his mouth: "You're here?" ”

Xue Xi slowly opened his mouth: "You teach mathematics?" ”

"Hiss......" Li Xuekai gasped, how could Xue Xi be so unkind to Da Niu? Who would dare to call each other that?

He raised his eyes and glanced at Xue Xi helplessly, and immediately blocked in front of her, and smiled apologetically: "Professor Feng, I'm sorry, Xue Xi, she is a bit direct, she doesn't mean that, she ......"

Before he finished speaking, he saw Feng Shiingshen smile, "Yes, I teach mathematics." ”

Li Xuekai: ???

【Ai Shang 】 Li Xuekai's eyes were dumbfounded, and seeing that Feng Xingshen did not have hostile appearance, he didn't seem to mind Xue Xi's title at all.

He turned his head to look at Xue Xi again.

Xue Xi continued to look at him: "You are a little older than I imagined. ”

Chern Shiingshen: "............"

Li Xuekai: "............"

I have seen him who has done death, but I have never seen anyone who has done such a thing.

Xue Xi does not look very emotionally intelligent, but how can he be like this?

He hurriedly made up for her: "Professor Feng, don't get me wrong, she doesn't mean that you are old, but that you are experienced and have old qualifications in the mathematical world!" ”

"Hahaha!" Feng Shiingshen smiled: "Sister Xi has a straight temperament, and she never turns her mind, he just said that I am old, I am indeed old, I am sixty-one years old this year, and the years are not forgiving, alas!" ”

Li Xuekai still wanted to make up for Xue Xi, but before he entered the mathematics world, he offended the big man in the mathematics world, which was simply death.

But before he could speak, he suddenly sensitively caught Feng Shiing's words, the affectionate title just now: Sister Xi'er......

He looked at Xue Xi suddenly, and then at Feng Shiingshen: "You know?" ”

Chern Shiingshen smiled: "This is my little friend." ”

Xue Xi also nodded: "God has been friends for a long time. ”

The two have not known each other on the Internet for a long time, and after Xue Xi's later Batra conjecture, Feng Xingshen also gave her some rare mathematical information.

Recently, two people have been working on a new topic: discrete mathematics.

Feng sent a lot of professional information to Xue Xi, and she was taking time to study.

The more Feng Shiingshen came into contact with Xue Xi, the more shocked he became, it was a pity that a mathematical genius like her didn't do scientific research.

The topics he gave her were already research topics at the graduate level, but Xue Xi could always grasp and learn them quickly!

This is also the reason why after hearing that Xue Xi came to participate in the Olympiad competition, Feng Shiingshen decided to come and see her in person! It is a waste for such a genius in mathematics to still be entangled in the college entrance examination and the Olympiad competition.

But everyone's life is their own decision, and Xiang Shuai also specially reminded him that he was not allowed to pull out the seedlings to help her, otherwise Feng Xingshen would have admitted her to college ahead of schedule!

In the last year's college, go through the process, and when you take the college entrance examination next year, how good is it to go directly to his graduate school?

Feng Xing sighed beside him and asked, "Sister Xi'er, how are you doing here?" Are there any questions? ”

Hearing this, Li Xuekai looked at Xue Xi, he thought that the other party would cry about Teacher Li's target, but he didn't expect Xue Xi to say calmly: "It's okay." ”

Li Xuekai was stunned.

After the two of them casually chatted about the professional knowledge of mathematics, Feng Shiingshen stood up and said: "Then I'll go first, Sister Xi, you are not familiar with Kyoto, if you encounter any trouble, remember to come to me." ”

Xue Xi nodded again.

Teacher Li outside the door was a little apprehensive, and Teacher Wei next to him asked: "Let you restrain yourself, don't you please, if two people accuse us at this time, Old Feng will definitely take care of it." ”

Teacher Li said stiffly: "What are you afraid of? If a student makes a mistake and can't be punished? ”

But from time to time, I skim in the office.

After the three of them came out, seeing that Feng Xing's face was as usual, Teacher Li breathed a sigh of relief: "Old Feng, you can go." ”

Font nodded.

When Xue Xi and Li Xuekai returned to the classroom, it was just time for dinner, she cleaned up and was about to go to dinner, when her mobile phone buzzed.

Xue Xi was stunned for a moment, and when he picked it up, he found that it was a string of familiar numbers: Xiang Huai called.

When she was about to answer, a voice suddenly sounded: "Xue Xi! You can't bring your phone to school, don't you know? During class time, how can you call?! ”

Xue Xi stared at her big blank eyes, and saw that at the door, Teacher Li was standing there, glaring at her.

Xue Xi glanced at the classmate next to him who was holding a mobile phone and bowed his head to play, and looked at Teacher Li again.

Originally, she was not sure in class, but now she is sure that this Teacher Li is targeting her.

She lowered her eyes, and Teacher Li had already rushed to her: "Give me the phone!" You can't play with your phone while you're in school, it's confiscated! ”

Xue Xi paused.

She glanced at Teacher Li's figure, and a trace of disdain swept over her indifferent gaze.

But in the end, she still handed over the phone.

Xue Xi has always been a good student who abides by the law, and there is indeed a rule in the school that you can't bring a mobile phone, and it is normal for everyone to sneak it in.

If the teacher is in charge, she should pay it.

After the phone fell into Teacher Li's hand, she didn't see that because she didn't answer the phone, the string of numbers sent her a message: [I'm waiting for you at the door and brought you lunch. - Your Huai. 】