However, there are two great gods who can always dilute all youthful feelings, one is called "exam" and the other is called "holiday".

Dou Xun's winter vacation started ten days earlier than Xu Xilin's, so he finally didn't have to run back and forth. He stayed at home doing his own things all day long, sometimes coming out to help Aunt Du with some work. Apart from helping to walk the dog in the morning and evening, he would never go out to play, and was a typical "other people's child".

Xu Xilin went home with his record-breaking final grades and showed them to Teacher Dou. This time, the two did not quarrel - the last time they quarreled was mainly because of their disagreement, Xu Xilin thought it was good, but Dou Xun thought it was terrible - this time they both agreed and both felt that there was a piece of shit on Xu's transcript.

So when Dou Xun started to scold, Xu Xilin unilaterally gave up the fight and listened with his head down.

"To be honest, I really don't understand." Dou Xun, who usually can't even say a word, can immediately add a chatterbox stunt as soon as he starts to sneer. "You didn't do anything a while ago, and others were working hard, so it's normal for you to be surpassed a little bit. What I can't understand is why you can't do it now?"

Xu Xilin saw that he had a serious look of doubt on his face, as if he was quite surprised that the human species actually has the ability to "forget".

In order to save him some trouble, Xu Xilin had to be the first to make fun of himself and said, "This is normal. When Doudou was a child, I taught him to sit down and shake hands for more than a month. I just learned it when my house was being renovated, so I sent it to someone else's house for a month. When he came back, he couldn't do it anymore."

Dou Xun: “…”

Since Xu Xilin already felt that he and Doudou were in the same country, he really had nothing to say.

"Science subjects in middle school are much simpler than arts subjects," Teacher Dou sat down and switched from sarcasm to serious contempt. "We only teach some very simple theorems and ways of thinking. The order of topics is very logical and the main points are also very clear. What difficulties do you have?"

Xu Xilin was speechless and could only say "Haha", thinking: "Yeah, we mortals are so embarrassed for being so stupid to you."

Dou Xun thought for a moment and then said, "But based on my experience of being in your class for a semester, I think 80% of your problems can be solved by the two methods of 'read the textbook carefully and don't do the exercises blindly like a headless fly' and 'read the questions carefully and don't talk nonsense'."

Xu Xilin humbly asked: "What about the remaining 20%?"

Dou Xun sneered: "Go to the hospital to treat your brain."

"Bean filling," Xu Xilin sighed and said earnestly, "I advise you to either talk less to people in the future, or take advantage of the holidays to go to the boxing gym near our home and sign up for free fighting or something."

Otherwise, you might be beaten to death one day.

Dou Xun was not grateful at all: "You should be the one who speaks less. Your brain has all turned to spit."

Xu Xilin: “…”

However, Dou Xun was not a pure talker after all. After he had finished talking, he returned to the house, brought something back and threw it in front of Xu Xilin: "Take it and have a look. Ask if you don't understand."

It was a thick stack of "A3" paper, sewn together with two strands of white thread. Everything inside was handwritten, one book for each subject of mathematics, physics, chemistry and biology. The first page was a brief background and history of the subject, and then a paragraph was cut out from the middle with a highlighter, with "Learning objectives for this stage" marked next to it.

The second page magnifies and refines the excerpted part, making an outline of the subject context. The points are connected with different real and virtual lines to draw the logical connections. The solid lines represent what needs to be mastered within the outline, and the dotted lines represent content beyond the outline, which is only for assistance in understanding.

Further on, the knowledge points of each part are taken out separately according to the logical relationship on the second page, and the page number of the textbook corresponding to each part of the content is written in very small words next to it. The internal logic of the textbook and the purpose of such arrangement make it look like a teacher's lesson plan.

In addition, Dou Xun also marked the angles from which each knowledge point can be explored, and even wrote the corresponding example page number in the "Little Yellow Book" exercise book after each angle.

Xu Xilin asked in shock: "Did you write this?"

Dou Xun didn't answer this nonsense, but just said: "The full score is 100. If you understand the examples, you can get 60 points. If you know the workbook from beginning to end, you can get 70 points. If you understand what the book says and sort out the internal logic, you can get 80 points. If you can give lectures to others in a systematic way, you can get 90 points."

Xu Xilin: "What about full marks?"

Dou Xun endured it for a minute, but couldn't hold it in any longer, so he finally became mean: "If you can explain it clearly to the fool, let him take the college entrance examination, he can get full marks."

After Dou Xun finished speaking, he felt that he had gone a bit too far, so he shut his mouth tightly and waited for Xu Xilin's counterattack.

But Xu Xilin said nothing, just rolled his eyes at him, tolerating him just like he tolerated Doudou grinding his teeth on his shoes, even with a subtle smile and indulgence.

He had sat at the desks in front and behind Dou Xun, and knew that Dou Xun was too lazy to write most of the time. Moreover, if he was writing something for himself, he didn't need to explain every word so clearly. The white printing paper, the clean cotton thread, and no stains at all showed that it had just been written and sewn, and no one had turned it over yet.

This was specially prepared for him.

Dou Xun looked much more haggard. He was much more tired these days than when he was preparing for the college entrance examination. It was completely understandable that he was so angry. Just for the silent companionship, Xu Xilin could tolerate all his rude words. While Dou Xun was getting up to pour water, he suddenly approached from behind, picked up Dou Xun, shook him, and swung him hard.

Dou Xun was so frightened that he was numb. Water spilled all over his hands. He looked at Xu Xilin in amazement.

"You've lost weight." After saying that, Xu Xilin put him down, held the precious stack of "top student secrets" under his arm, and strolled back to the house.

After a full two minutes, Dou Xun's space-walk-like reflexes finally allowed him to run across the field with difficulty. He thawed out, and a hundred mines all over his body exploded at the same time, filling the ground with colorful flowers.

Many people fall in love in college. School life artificially divides the continuous growth years of teenagers into several stages, making them all like passing levels and winning battles. Only when they reach new maps can they get new skills. The young boys and girls who entered college quickly got used to looking for classrooms all over the school and also got used to falling in love. The "premature love" that was still a secret and somewhat taboo before the summer vacation has become as common as eating and picking teeth.

Some boys will flirt with a girl they like when they see one. If they happen to have nothing to do, they will chase her, just like buying a lottery ticket. Occasionally, they will get lucky and catch the girl, then they can return to the dormitory in glory and treat her to a meal.

Dou Xun found it difficult to understand, because many people pursued girls they didn't know at all. How could you talk about whether you liked or not someone you didn't know well?

The second brother in their dormitory told him as a matter of course: "Why can't you like her? For girls, you don't need to know them. You can like them at first sight. It doesn't matter if you are not familiar with them. You will naturally become familiar with them after you chase them. If your personalities are not compatible, you can break up. Even married people can get divorced. Don't say that we are only in the trial operation stage. How many first loves can succeed? Relax, as long as you are good enough, the whole world is your backup."

After making this absurd statement, the second brother who called himself "Love Doctoral Supervisor" was still not satisfied, and said to Dou Xun: "Based on my analysis of your situation, there is an 80% chance that you have someone in your heart. It is probably not your childhood sweetheart, but it is almost the same. Anyway, he must be very familiar with you, right?"

Dou Xun's heart skipped a beat. Out of the same foolish curiosity as Xu Xilin, he asked, "What about the remaining 20%?"

The second brother said: "Otherwise, then there is something wrong with you. You don't like women at all, hahahaha."

After hearing this, Dou Xun packed up his things and ran back from school, because his second brother was lucky enough to hit the nail on the head on all the worries in his life.

Dou Xun has been a loner since childhood. He thinks everyone is a fool and has never liked anyone.

At the beginning, he was just a little dependent on Xu Xilin, because everyone else was clearly separated from him, and Xu Xilin was the only unexpected star that had crossed the "Boundary between Chu and Han". He was like a window opened on the wall that isolated Dou Xun from the world, bringing Dou Xun out little by little from the small circle he had created.

Later, this dependence gradually escalated. Dou Xun could not help but divide his attention on Xu Xilin. He would want to observe what he was doing after a while. He would feel uneasy if he could not see him for a while. If he happened to know that he went to play with others, he would feel very uncomfortable.

Later... Dou Xun discovered that something was wrong.

He often had the urge to touch Xu Xilin, but once the other party approached him, he would feel trembling with nervousness.

Dou Xun walked into Xu Xilin's bedroom as if possessed by a ghost. The newly replaced door lock was shiny and gleaming, but it felt cold in his palm. He leaned against the door frame and said to Xu Xilin without thinking, "I hope you can come to our school."

Xu Xilin thought he was joking and said without even looking up, "I can't pass the exam, Teacher Dou."

Dou Xun shut up silently, with an anxious desire surging up and down in his heart, firmly pinning him to the spot. The place where Xu Xilin had just touched through his clothes was faintly hot. He stared at Xu Xilin blankly for a while, and suddenly thought to himself: "I want to kiss him."

This thought scared himself, and Dou Xun realized belatedly that he was a little perverted.

Xu Xilin was just trying to find  a song to listen to while reading, when he noticed Dou Xun was still standing there in a daze. He turned his head and looked at him in confusion: "Dou Xian'er, what are you doing?"

Dou Xun felt guilty and quickly withdrew his gaze, staring at his toes: "I am serious."

In fact, he had another sentence in his mind: "I want to be with you forever. School is boring without you." However, he couldn't say it out loud. He could only hesitate and let his simple expression float alone.

Xu Xilin frowned: "Dounianer, what do you want to say?"

Dou Xun stared into Xu Xilin's eyes like a possessed person.

Xu Xilin was inexplicably startled, and the hand holding the mouse accidentally clicked something. An advertisement for a pornographic website suddenly popped into his computer screen. A high-pitched gasp suddenly interrupted the two people's blank stares without warning.

Xu Xilin hurriedly closed it.

When I looked again, Dou Xun had already run away.

Xu Xilin looked at his half-open door and thought, "But I really can't pass the exam."