Looking at the screenshot sent by Song Yu, Le Zhishi frowned.

[Le Zhishi: You cut me into such an ugly shape that I’m all blurred]

[Brother: Don’t change the subject.]

Le Zhi thought about it and felt that this was a perfect opportunity to call Song Yu. He was going to make a voice call directly, but accidentally made the wrong choice and turned it into a video call.

In a hurry, Le Zhishi wanted to quickly hang up and redial before Song Yu could react, but he didn't expect Song Yu to answer.

In the camera, it was dark on his end, and it seemed that the lights had been turned off. The only light source was the light from the mobile phone screen, which was only enough to illuminate Song Yu's face.

It is also strange that under this kind of light source, Song Yu looks particularly three-dimensional and beautiful. The camera is very close, and his facial features are also magnified a lot, as if he is leaning against him.

When Le Zhishi was in a daze, his phone vibrated. He logged out and found that the message was from Song Yu.

[Brother: Why video?]

[Brother: The lights are out in the dormitory, so we can’t talk.]

Le Zhishi returned to the video interface, made an OK gesture to Song Yu, and then told him, "I originally wanted to make a voice call, but accidentally clicked the wrong one."

The phone vibrated again.

[Brother: Then I’ll die.]

Le Zhishi immediately shook his head at him, "No, no, no, no, I want to video chat with you, just for a while."

[Brother: Don’t you have anything to explain?]

Seeing this sentence, Le Zhi remembered the original purpose of the call, "Oh yes, you said playing games, I don't play anymore, and I haven't played once since I came back. The one in the screenshot is indeed the game you took me to play before.

That classmate from the game, I told you, but how did you know about it?"

In the video, Le Zhishi could see Song Yu's straightened lips, looking unhappy. He softened his voice and called brother before his phone vibrated.

[Brother: Guess.]

"You are so good, you guessed it right the first time. In fact, I only fought with him two or three times, and he fought more with other boys in our class."

[Brother: Do you have a good relationship?]

Seeing this sentence, Le Zhishi picked up the yogurt on the table, took a sip, and said in a casual tone, "It's okay, I have a good relationship with everyone in our class."

Song Yu edited a few words, and finally deleted the reference object and replaced it with another person.

[Brother: Compared with Jiang Yufan.]

Le Zhishi's answer was almost without hesitation, "It's still incomparable. We only met in the second grade of high school. Of course, Jiang Yufan and I have the strongest relationship."

Seeing this sentence, Song Yu felt that the breath he was holding was relieved.

He didn't know if his intuition was accurate, but he did feel bad when he saw the video.

Opportunities to make videos do not come often. Le Zhishi took the opportunity to tell his brother a lot about what happened recently, including how much weight Marshmallow has gained recently and how many canned oranges he eats in a day. Song Yu's expression changes in the camera.

It's not big, but by changing sides, it seems that I have chosen a more comfortable and relaxing sleeping position.

Staring at the screen, Le Zhi unconsciously lay on the table, leaning sideways, with his head resting on his elbows. Looking so close, Song Yu's eyelashes were very clear, and his outline was right in front of him.

Watching quietly, Le Zhi felt like he was back to the night when he and Song Yu were trapped by the heavy rain.

"Brother, why did you go to bed so early? Are you very tired?"

Listening to Le Zhishi talking for a long time, Song Yu was also in a daze, forgetting that he couldn't speak, and hummed.

"Then I won't tell you for too long, so as not to disturb your sleep. I also want to endorse it." Le Zhishi was afraid that he would still think he was playing a game, so he specifically said, "I will uninstall that game in a moment, and I will wait until the test is over."

Come back again."

Song Yu didn't speak. The curve of his mouth softened slightly. Le Zhi smiled at him and said, "Then go to bed quickly. Good night."

"Good night."

Song Yu subconsciously spoke in a low voice, and the video was hung up on the other end. He suddenly heard a sly laughter coming from the dormitory, turned around in confusion, and three flashlights were pointed at him, it was like three interrogations.

"Who are you saying good night to? You handsome guy, you are so considerate and your aloof persona is completely shattered."

"You are overthinking, you must be saying good night to me."

"Hey, is another one of us in our dormitory going to be single?"

"You guys are really boring." Song Yu put on earplugs and closed his eyes to sleep.

This time he fell asleep quickly.

The college entrance examination is imminent, and there are big countdown numbers written on the upper right corner of the classroom blackboard, which change every day and become less and less.

Everyone comes earlier and earlier and leaves later and later, putting all their energy and time into the final review sprint.

The air seemed to be compressed, so heavy that it was difficult to flow, and countless knowledge points were pressed on everyone's shoulders.

Le Zhi Shi has a big heart and is calmer than others. His deskmate has cried twice. The first time he avoided Le Zhi. After crying in the women's room, he came back with red eyes. Le Zhi

I knew she was under great pressure at the time, so I gave her the Skittles I had just bought. The second time, she just lay on the table and cried.

"No, Zhang Yueyue, you're crying before the test."

When I heard someone making fun of this, Le Zhishi solemnly said, "Crying is an effective way to release stress. If you cry before the exam, it will be too late to cry after the exam."

Just like that, the last ten days before the college entrance examination flew by in a chaotic manner. In a blink of an eye, it was the last night before the exam. In order to relax, the class teacher stood on the podium and told them about the embarrassing things that happened during the college entrance examination.

While listening, I felt a little dazed.

He obviously hates getting up early and staying late every day, hates memorizing similar knowledge points day after day, and hates studying the same real questions over and over again. This boring, boring and stressful day, he looks forward to ending early every day.

But when this day came, Le Zhishi felt very reluctant to let go.

Half a minute before the end of evening self-study, a boy in the class suddenly shouted, "Come on, Class 10, Grade 3!"

At first, everyone was stunned, but it only lasted for two or three seconds. Some people laughed, and some shouted, "Come on." More and more, this kind of sound penetrated the wall and spread to the next class.

Somehow, the entire senior year started shouting, which echoed throughout the building, as if they were cheering each other on.

After riding home, Le Zhi drank a glass of warm milk as Lin Rong said, washed up early, went to bed, checked all the things he would bring to the examination room tomorrow, and then prepared to rest.

It was only half past ten in the evening when I was lying in bed.

He couldn't sleep at all.

After tossing and turning for a long time, Le Zhi found that his heart was beating very fast and he was constantly thinking about tomorrow. The more he thought about it, the more energetic he felt.

Too nervous.

He took out his phone and the locked screen lit up. The background was the main entrance he had taken the last time he went to W University. In the darkness, he stared at it intently for a long time. It was not until the message from Song Yu appeared that he came back to his senses.

[Brother: Remember to check whether each pen is easy to use. Relax.]

How can it be so easy? Le Zhi felt depressed. When Song Yu took the college entrance examination, he was the one who was so nervous that he fell ill. Now it is his turn to take the college entrance examination, and he is still so nervous. He only took the test once and was nervous twice. What a loss.

He felt that he couldn't sleep at all if he continued like this. After hesitating for a long time, he finally couldn't help but call Song Yu. The prompt tone only rang once and the call was connected.

"What's wrong?" Song Yu's voice sounded particularly gloomy under the radio waves, giving Le Zhishi a concrete comfort in the dark night, like a gray cloud, which looked cold but could be touched by reaching out.

A piece of softness.

Le Zhishi nestled in the quilt and turned over, "I have a little insomnia."

"Can't sleep?"

He heard that Song Yu's voice was deliberately lowered.

"Yeah. I tried. Maybe I'm too nervous. The more I want to sleep, the more I can't fall asleep. Can you talk to me and divert my attention?"

Song Yu was quiet for two seconds, "Are you sure that listening to me won't make you unable to sleep even more?"

Le Zhishi thought about it and felt that what he said made sense, but there was an exception, "When you tell me math problems, I get sleepy easily."

Song Yu on the other end of the phone seemed to chuckle slightly, which was keenly caught by Le Zhishi, so Le Zhishi also smiled.

"Where can I go to find a topic for you to talk about now?" Song Yu's tone revealed a little helplessness.

"Yes." Le Zhi closed his eyes and imagined that Song Yu was beside him, "Then can you pretend to be a math teacher and read something that will make me sleepy?"

There was some noise coming from the earphones, like the sound of searching for something. Soon, Le Zhi heard Song Yu getting up and seemed to have moved the location. The background sound of the environment became different and much emptyer.

Within a few seconds, he heard Song Yu ask in a low voice, "How about "Oxford General Reader: Mathematics"?"

"This name is very hypnotic when I hear it." Le Zhishi agreed.

He heard the sound of pages turning, and then, Song Yu spoke in a deep voice. His voice was low, and his emotions did not fluctuate much, but it had a very pleasant resonance, which could soothe the restless emotions of Le Zhi.

"... When we examine the solution to a physical problem, nine times out of ten we can draw a clear line between the scientific contribution and the mathematical contribution..."

The words he read were obscure and difficult, but when they reached Le Zhishi's ears, the words seemed to be peeled off and turned into simple audio waveforms, pouring into Le Zhishi's heart. He followed the frequency of the fluctuations, rising and falling, breathing.

Slow down, relax your limbs, and finally enter a stable, calm state.

"...It turns out that even very simple models of interacting particles have extremely complex behaviors that lead to mathematical problems that are extremely difficult to solve, and in fact most cannot be solved."

Feeling steady breathing coming from the other end of the phone, Song Yu also slowed down and slowly stopped.

The most complex and difficult problem in the world seems to have been put to rest for the time being.

"Good night."
To be continued...