Do you understand Euclid today?

It happened to be the end of the evening self-study, and the stalls in the food street were full of students after school.It was already 15 minutes before Jiang Yixing squeezed out the cold noodles with his left hand and the gluten with his right hand.

He staggered back, the school gate was deserted, only a few students came out one after another.

Jiang Yixing walked towards the school gate, raised his eyes and saw a cluster of flames suddenly lit up in a dark corner in the distance, flashed faintly, and quickly shrunk into a small dot and disappeared in the wind.

Someone must be smoking there.Jiang Yixing only took a glance, then looked away, and continued to turn around and walk towards the dormitory.

After lunch at noon on Monday, Lin Qianshu was idle and bored, so he went to the newsstand outside the school gate to buy magazines. As soon as he picked out the magazines, he felt a burning gaze resting on him behind him.

The street at noon was empty, and when Lin Qianshu turned around, there was only a middle-aged man with an unshaven beard standing under the eaves of the stationery store opposite.The middle-aged man with an unfamiliar appearance didn't attract much attention from Lin Qianshu. He only glanced at him and then turned his head to ask the boss, "Boss, how much is this magazine?"

After paying the bill, Lin Qianshu turned his head again, and this time his gaze was completely on the man's.

The cold wind in Nanling in December was bitter, but the middle-aged man only wore an outdated leather jacket, and his pants didn't fit well. He could be described as "down and out".Seeing him staring at him all the time, Lin Qianshu couldn't help but feel uneasy - is this someone he knew when he lost his memory?

Following the principle of "If the enemy does not move, I will not move", Lin Qianshu just stood there holding the magazine and looked at the middle-aged man very vigilantly.

After about 3 minutes, the middle-aged man started to move first.He slowly walked out from under the eaves of the stationery store, and walked towards the newsstand with a clear goal.

The man walked up to Lin Qianshu and stood still. Lin Qianshu felt the strong smell of tobacco coming to his nostrils, and he couldn't help frowning.

"Hello, young man," the man opened his mouth, revealing his teeth yellowed by cigarette smoke, "Are you a teacher from Nanhuai High School?"

Lin Qianshu stepped back, did not answer his question, and asked instead: "Do you have any questions?"

The man bared his teeth, as if he was trying to put on a kind gesture, but his body, which had been soaked in tobacco and alcohol for a long time, had already lost more than half of his energy, and this baring of teeth made him look even more ferocious.He opened the leather jacket, took out a crumpled photo from the inner pocket and handed it to Lin Qianshu: "It's okay, I just want you to help me find out, is this kid studying in your school?"

Lin Qianshu looked down, and suddenly became speechless - in the photo, a round little bald head was sitting on a toddler, and a pair of big purple grape-like eyes were staring at the camera ignorantly.

... Who can recognize a teenager who changes every day from a baby photo!

Probably because Lin Qianshu's speechless eyes were too obvious, the man rubbed his hands awkwardly: "This is the only photo of him on my body right now..."

"May I ask, is this child yours...?"

The man's expression became a little unnatural: "This is my son."

What kind of father, the only photo on his body is the photo of his son when he was a baby.Lin Qianshu raised the alert level to five stars, hesitating whether to find an excuse to run away: "I have to go back and change my homework, you..."

"Don't go!" Seeing that Lin Qianshu wanted to leave, the man immediately became anxious. He grabbed Lin Qianshu's clothes in desperation, and couldn't help but speed up his speech, "This is really me Son, I didn't lie to you!"

"His name is Yi Xing. It's Yi Xing, Yi Xing, Xing Xing. This year he happens to be in the first year of high school. I also have an older son named Yi Zhi. Both of them have good grades..." The man crackled and said a lot of words .

Easy to do, easy to know.These two names are simply too recognizable, not to mention that the eldest son in the man's mouth also graduated from Nanhuai Experimental High School.These few messages were added together, and two similar cold faces appeared in Lin Qianshu's mind instantly.

For the first time today, Lin Qianshu raised his eyes seriously to look at the middle-aged man. The man had exactly the same eyes as Jiang Yizhi's, but compared to Jiang Yizhi's clear, the whites of his eyes were cloudy and bloodshot.

"I don't want to be someone exactly like him..."

Jiang Yizhi's trembling voice echoed in Lin Qianshu's mind.He recalled effortlessly how his lover had hugged him hard, begged him to speak the words that needed him, told him his fear of becoming a man like his father.

When Lin Qianshu met Jiang Yizhi, Yi Weiguo had already left the family. Jiang Yizhi supported the whole family with his weak shoulders at that time - taking care of the irritated mother and young brother. He worked more than 10 hours a day to earn tuition fees for himself, and even later moved Lin Qianshu into his life plan little by little... But such a difficult life, for him in the past, was too much Ruo Ye.

The word "father" was a nightmare for Jiang Yizhi, so that Jiang Yizhi was only fortunate when he left in the end.

Such a man who had disappeared for nearly eight years suddenly reappeared in Nanling City, which made Lin Qianshu very nervous.Seeing the man's eager eyes, he calmly broke away from the man's hand and replied, "Sorry, I don't know the two you mentioned."

Yi Weiguo was about to say something more, when Lin Qianshu's cell phone rang, and he took a step back in relief, and picked up the phone.

"Hey?"

The screen showed that Jiang Yizhi was calling, Lin Qianshu quickly glanced at Yi Weiguo, and lowered his eyes to pretend not to notice.

"The monthly exam paper for December is on your desk," Jiang Yizhi's voice came from the receiver, "Is the magazine any good?"

Lin Qianshu knew that Jiang Yizhi was secretly urging him to go back as soon as possible.

"It took me a while to pick out magazines, and I'm on my way back," he said.

On the phone, Jiang Yizhi seemed to laugh very shortly, the breath sound transmitted through the current, rubbing against Lin Qianshu's eardrums, making his heart itchy.

"Okay." Jiang Yizhi replied.

After hanging up the phone, Lin Qianshu restrained himself and smiled at Yi Weiguo: "I still have something to do at school, so I'll leave first."

After taking two steps, Lin Qianshu stopped again. He hesitated for a few seconds, then turned and said to Yi Weiguo who was still standing there, "I'll find someone to advise you to go through the normal channels. After squatting at the school gate for a long time, the auxiliary police will look for you." of."

Yi Weiguo was stunned, and wanted to say something more, but Lin Qianshu had already turned around and left the street quickly.

Of course Lin Qianshu knew that Yi Weihui was squatting here because he couldn't find someone through normal channels, but he didn't mind being a little more cruel.He thought about it, walked to the auxiliary police lounge at the gate, and smiled kindly at the two auxiliary policemen who were resting inside: "Brother Li, Brother Wang, recently there was a man at the school gate who pretended to be a student's parent and tried to break into the campus. The two of you should pay more attention, and don't let people from the society enter the school."

The two auxiliary policemen immediately became serious when they heard the idlers wandering around the school. They looked at the monitor screen, and as expected, they saw Yi Weiguo standing at the corner of the street and looking at the school gate from time to time.

"It's true that this person has been wandering around the school for the past few days...Mr. Xiao Lin, thank you for your careful attention." Police Li Fu solemnly expressed his gratitude to Lin Qianshu, "We will definitely guard against death and prevent bad guys from succeeding."

Lin Qianshu smiled back and shook hands with Li Auxiliary Police: "It is our teacher's duty to protect the safety of students."

Back in the office, Jiang Yizhi was immersed in studying obscure English documents as usual, Lin Qianshu closed the office door softly, walked around him lightly and walked to his desk.

There was a December mathematics monthly exam paper on the desk. Lin Qianshu picked it up and looked at it. He scored 144 points and made a mistake with a question that he had left blank.

Of course, I didn't write the question on purpose, it was because Lin Qianshu really couldn't do it.

But at this moment, seeing the detailed steps and answers that had been carefully filled in with red pen, Lin Qianshu's mood improved again after being messed up by Yi Weiguo.

He looked up at Jiang Yizhi's back, his heart was soft.

You're never going to be like your dad anytime soon.Lin Qianshu read silently.

——It happened after school that afternoon.

The bell rang for a long time after school, but Lin Qianshu and Jiang Yizhi were still in the office. Lin Qianshu was revising the lesson plan for tomorrow's class, and Jiang Yizhi was revising his application materials. The sharp ringing of the phone broke the silence in the room .

Lin Qianshu put down his pen and saw that the name displayed on the screen was Radar's. He curiously connected the phone that kept blinking: "Hello, Radar?"

"Brother Lin, hurry up to the school gate!" Radar's anxious voice came.

Lin Qianshu was at a loss: "What's wrong?"

"Brother Jiang's father is at the school gate, so he has to drag Brother Jiang away. Brother Jiang said no, the two of them are about to fight at the school gate!" Just as he was speaking, Lin Qianshu heard the voice of the auxiliary policeman on the other end of the phone. There was a loud shout—"What are you doing? Let go of our students!", and then Yi Weiguo replied cursingly—"What's wrong with me pulling my son?" There was chaos on the other end of the phone, and Lin Qianshu's heart skipped a beat Tighten.

He stood up from his seat all of a sudden, and said to Radar in a hurry: "I'll come right over, please calm Xiaoxing's emotions first." He hung up the phone, and Jiang Yizhi also stood up from his seat, wrinkled Mei asked him: "What's wrong with Xiaoxing?"

"Your father is at the school gate..." Lin Qianshu packed his things in a panic, fearing that there would be bigger problems if he was late, "It seems that he is looking for Xiaoxing, we have to go and see."

Hearing "your father", Jiang Yizhi lost his mind a little. Father has been a term in his heart for a very long time.But he quickly came back to his senses, turned around and rushed to the door without caring about anything.

Holding the handle, Jiang Yizhi paused for a few seconds. He heard familiar footsteps behind him, and then he opened the office door with force, and went to the school gate together with Lin Qianshu.

The author has something to say: a final ups and downs_(:з」∠)_