Do you understand Euclid today?

"You mean, you feel like you have time-traveled?"

Ten minutes later, Jiang Yizhi looked at Lin Qianshu who was standing in front of him with a disturbed expression, and asked back.

Lin Qianshu nodded, and seriously corrected Jiang Yizhi's statement: "It's not that I think, it's that I really timed through." He thought for a while, and listed the school's Monday schedule: "Look, I even remember the schedule clearly. Chu, do you still remember what class you were taking seven years ago today?"

"The last section is a physical activity class, not a self-study class." Jiang Yizhi said lightly.

This really made him pretend to be successful.Lin Qianshu was a little speechless. After thinking about it, he didn't hesitate to ask Jiang Yizhi in a way that damaged his image: "It's not unusual for you to remember this, but you think it's not normal for me to remember so clearly, right?"

Jiang Yizhi was silent for a while, then suddenly got up and left the sofa, heading towards the bedroom.

"What are you doing?" Lin Qianshu was a little nervous, always feeling that Jiang Yizhi's back was full of murderous intent.

After a while, Jiang Yizhi came out of the bedroom, holding a stack of books and materials in his hand.He walked up to Lin Qianshu and handed one of the books to Lin Qianshu: "Do you remember this book?"

Lin Qianshu took the book helplessly, muttered, "Why don't you believe it?", sighed and opened the cover of the book, the handwriting that caught his eyes gave him an indescribable sense of familiarity.But other than the notes, Lin Qianshu was sure that he hadn't read it - after all, he couldn't even read the top word.

"I don't remember." Lin Qianshu had a headache looking at English, and decisively closed the book and shook his head at Jiang Yizhi, "I haven't seen it."

Jiang Yizhi frowned, and picked up another book unwillingly: "Where is this book? Do you still have any impressions?"

The cover of this book looked even more unfamiliar. Lin Qianshu wanted to shake his head straight away, but seeing Jiang Yizhi's serious eyes, he had no choice but to bite the bullet and touched the book and turned two pages. Obviously, this book was still in his memory. does not exist.

"I really don't have an impression," Lin Qianshu said helplessly to Jiang Yizhi, "Let's not talk about the contents of these books, I don't even remember where I live, and I found it here yesterday by taking a taxi from your brother."

The young man stood there with his head bowed, and stood there for a long while, unwillingly looking through the capsule instructions in the medicine box: "Is there a problem with yesterday's capsule? Cold medicine will cause slow thinking..."

Seeing Jiang Yizhi's almost crazy look, Lin Qianshu reached out and grabbed his arm, preventing him from continuing to search in the medicine box: "Don't look for it, I can still tell the difference between slow thinking and memory regression." Lin Qianshu Shu pointed to Jiang Yizhi, and then pointed to himself: "I remember that you are my high school classmate, this is a relationship within the scope of my memory. As for us going to college together or 'another Lin Qianshu' asking you together Taking the GRE test to go abroad is something I don’t know about.”

After saying this, Lin Qianshu felt that the shoulders of the person in front of him suddenly collapsed, and all the seriousness he had maintained was instantly poured out.Jiang Yizhi's hand dropped powerlessly from the side of the medicine box, and he looked at Lin Qianshu with a dazed look: "How could this be..." He murmured, "Why don't I remember..."

The good friends who were having fun together hand in hand on the study road suddenly changed their minds, and no one could accept this incident calmly.Lin Qianshu understood the emotional fluctuation caused by this incident, but he was surprised that the emotional fluctuation was Jiang Yizhi.

——At least the two of them have been in the same class for nearly half a year, and Jiang Yizhi has always given him the feeling of a walking refrigerator.

Jiang Yizhi didn't move, and Lin Qianshu didn't dare to move. The two stood in the living room in a strange posture.After an unknown period of time, when Jiang Yizhi raised his head again, the blank look on his face had disappeared, and he returned to a calm look again.

"I'll go back and tidy up." Jiang Yizhi had already tidied up his emotions, and it was completely inaudible in his voice that he was on the verge of collapse just now.He bent down and packed up the books that he brought to Lin Qianshu to find memories, and held them in his hands again: "You go and wash up first, I'll go back to the room and tidy up."

Even after saying two repeated words, even though Jiang Yizhi had a calm expression on his face, Lin Qianshu could still see a trace of his inner loss.And Lin Qianshu understood that this loss could not comfort him, it was a debt left by "another Lin Qianshu".

For the rest of the night, the two staggered the time to wash up separately, and there was no communication at all.

On the second night of time travel, Lin Qianshu was lying in the room alone.The traces of the other person on the bed have been removed, but the scent of mint and lemon on his body still remains domineeringly between the sheets and pillowcases.Lin Qianshu tossed and turned, and could always smell something vaguely absent. The second before he fell into a sweet dream, Jiang Yizhi's name still came to mind.

After telling the secret, Lin Qianshu felt as if a heavy burden had been lifted.Without the burden, he slept until dawn.It wasn't until the alarm clock rang for the third time that he squinted his eyes and sat up from the bed, yawned and went to the bathroom to brush his teeth and wash his face.

After washing, Lin Qianshu turned around and opened the bathroom door. He was about to go out, but was taken aback by Jiang Yizhi who was standing outside the door.

"You...you stole the chicken last night?" Looking at Jiang Yizhi's bloodshot eyes, Lin Qianshu couldn't help but ask him.

Jiang Yizhi shook his head, and his voice was very hoarse when he spoke: "It's too late to buy the steamed buns, how about a sandwich?"

Hearing Jiang Yizhi's voice, Lin Qianshu felt that he probably had to stand in the wind all night to get this effect, which looked even scarier than himself with a low fever yesterday.As a person who only eats and doesn't cook, Lin Qianshu nodded amiably: "Okay." After speaking, he couldn't help but said: "...I can go shopping."

Jiang Yizhi clenched his fists to his lips and coughed twice, his cheeks were blushing unnaturally, he turned his head to look at Lin Qianshu, his lips moved, but he didn't say anything in the end.

For some reason, seeing such a scene, Lin Qianshu felt his heart hurt like it was tightening.

Not wanting such strange emotions to continue to spread, Lin Qianshu hurriedly left the bathroom, changed his clothes and went downstairs to buy breakfast.

When Lin Qianshu bought breakfast and returned home again, Jiang Yizhi had already packed himself up, without his decadent appearance.Lin Qianshu put the breakfast on the table, and scratched his nose uncomfortably: "I bought it from the steamed stuffed bun shop at the gate of the community. I don't know if you want to eat it."

Jiang Yizhi took a bite of a steamed bun and said in a hoarse voice, "It's delicious."

These three simple words made Lin Qianshu's ears inexplicably warm, and he whispered, "Then you should eat more."

Jiang Yizhi put down his chopsticks after eating a bun.He said to Lin Qianshu, "I've made an appointment with the doctor, let's go to the hospital in the morning."

"Oh, then you go." Lin Qianshu concentrated on dealing with the salty bean curd in front of him, and replied casually, "I'll just go to school by myself." He looked at today's schedule, and only at night did he have to manage evening self-study. In the morning, I can go to class D to attend a class.

"Wood," Jiang Yizhi said with obvious helplessness in his voice, "the doctor made an appointment for you."

Lin Qianshu's hands froze, and he raised his head in horror: "You reported to the hospital that I came here through time travel, and now the hospital is going to dissect me?" Seeing that Jiang Yi didn't know whether to answer, he just looked at himself with calm eyes, Lin Qianshu looked away. She pursed her lips, and her shoulders pretended to be relaxed: "Okay, I'm just kidding... just go."

Lin Qianshu thought about it last night. With Jiang Yizhi's temperament, if he easily accepted the fact that his friends who have been friends for many years once traveled through time, it would not be him.

"Director Yan, I've already asked for leave. I don't have to go to school today." Jiang Yizhi said in a low voice.

There is a good reason for not going to school during the school day, which is the best thing for student Kobayashi.So he quickly cheered up again, thinking that he could go shopping in the afternoon after checking in the morning.

After breakfast, the two took a taxi to the hospital.Jiang Yizhi led Lin Qianshu straight to the brain department on the fourth floor.

On the morning of weekdays, there were not many patients outside the Brain Department. In addition, Jiang Yizhi made an appointment online yesterday, and the two of them waited in line for a while before it was Lin Qianshu's turn.Seeing "Lin X Shu" appearing on the LED screen, Lin Qianshu always felt like he was calling someone else.

"Let's go." Jiang Yizhi stood behind Lin Qianshu and said.

Lin Qianshu looked away, and walked into the door of the brain clinic with a little apprehension and bewilderment.

The doctor who attended the consultation was a middle-aged man. Lin Qianshu remembered seeing his photo on the top of the promotional wall when he just got out of the elevator, and he seemed to be a very well-known expert.

"Lin Qianshu... isn't it?" The doctor glanced at the name on the medical record card and pushed his glasses, "What's the problem?"

Lin Qianshu licked his lips in embarrassment, his voice was vague: "...I have traveled through time."

With a "wow", the pen drew a long mark on the paper.The doctor coughed several times before stopping: "Mr. Lin, can I trouble you to say it again?"

If Jiang Yizhi was facing him, Lin Qianshu wouldn't be so embarrassed.However, facing the doctor, sitting in the outpatient room and discussing time travel with him in a serious manner, Lin Qianshu really felt a little ashamed.

Lin Qianshu glanced behind him quickly, and Jiang Yizhi stood quietly and firmly like a door god.Except for him, the entire consulting room was empty, and there were no strangers.

Lin Qianshu took a deep breath, and repeated in a low voice: "I've time-traveled, doctor."

Now, the doctor confirmed that he had heard correctly.He couldn't help but "puchi" and shrugged his shoulders a few times.However, as an expert with professionalism, he put down the pen in his hand, and when he turned his head again, his expression became serious again.He didn't ask Lin Qianshu, but turned to look at Jiang Yizhi who was behind Lin Qianshu: "Has the patient received a severe blow to the head recently?"

Jiang Yizhi thought for a while: "Last Tuesday afternoon, he was hit by a pig, but I'm not sure if he hurt his head."

Hearing "hit by a pig", the doctor, who had already managed his emotions well, let out another "poof", but he managed to hold it back.He wrote a few lines on the medical record card, and then pulled a sheet to Lin Qianshu: "My suggestion is to take a brain CT first to see if there are any other problems."

The author has something to say: Doctor: What are you talking about?