The sky was overcast, and there was not a single dark cloud in sight, as if the sky was originally this gray. I don't see the sun either. The sky was bright, and there was no light source, let alone a heat source, and the cold air was pervasive, enveloping the man's skin and burrowing into the limbs and bones.

Li Yun stood on the podium, looked down and could see the lesson plans spread out on the podium, and when he looked up, he could see the students underneath. Those eyes stared at him, and there was no so-called inquisitive light in the not bright eyes. There's calm, there's indifference.

It's a weird atmosphere.

Li Yun's gaze swept over each student, and he could feel the hollow heart of each of them.

This is somewhat similar to Xu Haijun's original hollowness. The soul is still there, but the soul is nothing.

Such beings are neither humans nor ghosts.

Li Yun opened his mouth to say something, but there was a sudden chill in his heart.

He turned his head to see that there was someone at the door of the classroom.

"Teacher Li, don't be nervous in the first class." The slightly balding middle-aged man smiled at Li Yun, and said to the numb students in the classroom, "This is the new Teacher Li." In the future, you must be obedient and listen attentively to Teacher Li's class. ”

The black-pressed student let out a neat cry: "Hello Teacher Li." ”

The bald middle-aged man looked at Li Yun again, his smile full of encouragement.

It's as if some mechanism has been opened.

Those numb students were a little more angry, and their eyes were no longer like a pool of stagnant water, but more curious, nervous, inquisitive and so on.

Li Yun pursed his lips, "Hello." I...... It's a new teacher. He followed the mood and didn't introduce himself. Looking down at the lesson plan on the podium, I realized that I had become a physics teacher.

Li Yun chose physics in high school, but the university is a liberal arts major, although there are public university mathematics, physics and chemistry courses, but they use very simple textbooks, and the difficulty of the exam is also very low. After working for a few years, he completely forgot about the knowledge of high school physics.

Fortunately, the lesson plan at hand is very detailed.

Li Yun recalled his student days, took chalk, and somewhat unskillfully wrote the opening title of the lesson plan on the blackboard.

This seems to be the first lesson of the new semester, and he is also a freshman in high school.

Li Yun wrote the title of the first lesson and read the content according to the lesson plan, but there was no mistake.

The bald middle-aged man at the door looked at it for a while and left.

The students below didn't know if they were paying attention to the class, but at least they didn't disrupt the classroom discipline.

Li Yun gradually became familiar with this environment, and after reading a few more paragraphs from the script, he suddenly looked up at these students.

"Who is the class leader and the study committee member?" Li Yun asked.

Two classmates, a man and a woman, raised their hands.

"Oh. What's your name? Li Yun asked again.

The two classmates stood up, and the man's self-introduction was called Yi Zhao? is the squad leader; The woman's self-introduction is called Ran Zhenqing? It is a study committee.

"Is there a class representative?" Li Yun asked again.

The crowd shook their heads.

"Are there any volunteers to be a class representative?" Li Yun asked again.

A boy sitting in the back row raised his hand, and the person looked strong? Energetic? Eager.

Li Yun called his name.

"My name is Ji Dabao!" The boy said loudly, "Not a class cadre?" I didn't serve as a class representative. This was my first physics class. I read the book after I got it. I love physics! ”

Li Yun was stunned.

He remembers that there was a physics class in junior high school. High school students say they took physics class for the first time......

"You didn't study physics in junior high school?" Li Yun asked.

Some people below nodded, others shook their heads.

"You ...... Not a local student? Li Yun had mixed feelings.

Shake your head again? Some nodded.

Li Yun was silent for a few seconds.

Reminiscent of the situation introduced by Huangfu Spring? He could imagine how complex the origins of this class were.

Ji Dabao asked, "Teacher, Teacher Li!" Can I be a physics class representative? ”

Li Yun looked at Ji Dabao and nodded in agreement.

"Then the three of you will do the three questions in the textbook first. Let's try it with what I just taught. Li Yun gave up his position.

The squad leader Yi Zhao pulled down his face, but Ran Zhenqing's face was as usual? Ji Dabao was very excited.

Three people on stage with textbooks? Stand in a row on the podium, grab the chalk, look down at the book for a while, look up and write the steps on the blackboard for the next time.

Li Yun asked the students below to solve the problem on their own.

He's walking around the classroom, while everyone is bowing their heads? Observed the classroom.

The classrooms are ordinary and simple.

Don't have a famous quote on the wall? There is no blackboard at the back, and there are no results on the wall, such as the score list, the propaganda corner, and the notice board.

This scene? It made Li Yun feel more and more that this was the first day of enrollment for the new class.

That "today" should be September 1st.

Li Yun pushed his glasses and looked down at the students' solutions.

Someone quickly copied the steps to solve the answer? There are also people who don't know where to start.

Li Yun walked over to them? Someone nervous? Some people ignored it, and some people quietly looked up to confirm Li Yun's location without waiting for Li Yun to come over, and some people peeked at the solution of the three people on the stage, or squinted at their own table.

This vivid classroom atmosphere made Li Yun unable to distinguish the real from the fake.

All students have real inner activity.

They are like the most powerful actors, and after the start of filming, their stiff and rigid hearts are disguised.

Or maybe the nothingness that Li Yun felt at first was some kind of disguise.

Li Yun walked to the window and looked out.

The classrooms are on the first floor, with the playground outside.

There is a class on the playground that is having a physical education class.

The students there are also very real teachers.

Li Yun walked to the door of the classroom and looked around the hallway and the small garden outside.

Different from the small garden in the real world, although the small garden in front of you does not have gorgeous flowers, it is full of greenery, and the deep and shallow green leaves of various plants stretch out, which seems to be carefully maintained.

When I looked up, I saw a figure in the upper classroom.

Li Yun can also sense the lively popularity of the whole school.

Everything is very real.

It's too real.

"Teacher, I'm done."

Li Yun turned around and found that it was Ji Dabao who solved the three questions first.

He motioned for Ji Dabao to return to his seat.

After waiting for a while, the squad leader Yi Zhao and the study committee member Ran Zhenqing also finished the questions and returned to their seats.

All three of them seem to have good grades, solve problems quickly, and have correct answers.

Li Yun looked at the students below who were still immersed in solving the problem, waited for a while, and saw that most of them had stopped writing, so he picked up the lesson plan and analyzed the three questions.

He spoke quickly, analyzed the three questions, looked at the lesson plan, and that was all there was to in a lesson.

But the school bell hasn't been ringed yet.

Li Yun subconsciously went to find the clock.

There was no clock in the classroom, and he didn't have a watch in his hand.

Li Yun reached into his pocket and found that there was only a bunch of keys in his pocket.

He was stunned, and his face changed suddenly.

It was only then that he realized that the clothes on his body had changed.

The clothes on his body have changed, and the mobile phone and other things that were originally in his pocket are naturally gone.

Li Yun didn't bother to hide it, and asked directly to the students below, "Who has a mirror?" ”

The students looked at each other.

"Teacher, there is a mirror in the toilet." Ji Dabao took the initiative to raise his hand and said.

Li Yun dropped the sentence "You read the book by yourself" and hurriedly ran out of the classroom.

He recalls the structure of the school building.

Lavatory...... Lavatory......

When Huangfu Quan led the way, they walked through most of the teaching buildings but did not see the toilets.

The toilet is on the other side of the "concave" shaped building......

Li Yun hurriedly ran in that direction.

He passed by a row of classrooms, which also attracted the attention of some people, but those people only looked at him twice, and did not leave the classroom, let alone stop him.

It was only when he quickly ran past the other half of the "concave" shape and ran past the statue of Confucius that he found the toilet around the corner.

At this corner of the school building is a stairwell. According to this overall symmetrical layout, the four corners of the building should be staircases.

The toilet here is a men's toilet, and when you enter, you can see the sink and the large mirror on the wall.

As soon as Li Yun stepped in, he saw himself in the mirror.

His appearance has not changed, but the clothes on his body......

Li Yun looked at the shirt and trousers on his body in a daze.

Although the dress of shirts and trousers has endured for a long time, and you can see such an outfit in any era, the material and style of shirts and trousers are different in different periods.

Li Yun touched the shirt on his body, unbuttoned it, and could still see the old man's vest inside, and then looked at the trousers, which were at least two sizes larger, and there was a wide belt tied around the waistband of the trousers.

The glasses on his nose were also not his original, the lenses were untreated and as thick as the bottom of a beer bottle.

Li Yun raised his hand and combed the unfamiliar middle part, and slowly lowered his hand.

That's a ......

Tick.

Li Yun turned his head sharply and looked into the toilet.

The sound of dripping water only sounded for a moment, and then there was no movement.

Li Yun still felt a hint of a different atmosphere.

He walked slowly inside, looking at every urinal and cubicle.

The toilet cubicles have no doors, and there are no separate squatting pits, just a long pit with a water tank installed in the innermost compartment.

The sound of dripping water seems to come from this compartment, and it is the water from the water pipes that flows out and drips down the sewers, which is the sound.

This is a very normal and common phenomenon.

In normal times, Li Yun would not care when he heard this kind of voice.

Li Yun didn't find anything strange, so he straightened his clothes and came out of the toilet.

Next to the toilet is the sports office, and further on is the main entrance, then the infirmary, and the women's restroom......

Li Yun looked at the women's toilet sign.

During the psychic game, he didn't see the sign, and there was no toilet at that location at all. Again, there are no stairs at that location.

Li Yun frowned and walked over.

The door to the PE office was open, and two teachers sat inside, neither of whom noticed Li Yun.

Outside the gate of the teaching building, directly facing the dormitory building. The middle aisle is lined with trees.

When you enter the gate, you will see a propaganda wall.

There were also two teachers in white coats sitting in the infirmary, both with their heads bowed, one reading a book and the other reading a newspaper.

Li Yun's footsteps stopped, and instead of going any further, he turned around and turned back to the gate.

The propaganda wall is written in yellow on a red background, which is very eye-catching. The text is "this school" and "our school" throughout the text; The photos posted show students, teachers, and school backgrounds, but even the photos of the main entrance of the school do not show the name of the school; The list of awards, the honor belongs to the students and teachers individually, and the few two collective awards are both a certain team, and the name of the school is also not written.

Li Yun quickly swept the contents of the entire wall, and soon found another one. All of these presentations and honors took place in 1995, the semester that began in September 1995 to be exact. The latest award was a singing contest in November '95. In just two months of school, the school has won more than a dozen honors, large and small.

Is it because the wall hasn't been updated for a long time, or has the world stopped at some point?

Li Yun frowned, swept the propaganda wall again, and then walked towards his original goal.

The door of the women's toilet was closed, and a handwritten white piece of paper with the word "maintenance" was pasted on the door. The white paper is not of good material, and there are still words on the back, Li Yun can make out that the back is also a handwritten transfer notice, and there is no time to sign the payment, and there is no headhead.

Li Yun did not give up and reached out and pushed the door panel.

"Hey, what are you doing?"

Li Yun was startled, and turned his head to see the female teacher coming out of the infirmary.

The female teacher put her hands in the pockets of her white coat, and the expression on her face was more shocked than Li Yun's.

"I just saw that the door wasn't closed." Li Yun withdrew his hand and tried to stay calm.

The female teacher stared at Li Yun for a while, "The general affairs should have locked this door, right?" Broken lock? ”

"Maybe it was accidentally loosened." Li Yun stood in front of the door of the women's bathroom, blocking the other party's view.

"Oh." The female teacher didn't know if she believed it, so she changed the subject, "Are you a new teacher?" I've never seen you before. ”

"Hmm."

"No lessons?" The female teacher's eyes were still full of suspicion when she looked at Li Yun.

"Come out and go to the bathroom. I just saw that this side was not quite right. ”

The female teacher nodded, "Hurry up and go back to the classroom." Don't look at the kids in the classroom who are very well-behaved, if you don't have them, they can make a mess. As she spoke, she passed by Li Yun and went upstairs, probably to the women's restroom upstairs.

Li Yun exhaled, looked at the closed women's toilet again, and turned to walk towards the classroom.

Before he arrived at the fourth class of high school where he was teaching, Li Yun heard some chattering voices.

He passed through the back door and window, and the sound of talking gradually stopped.

Li Yun stepped into the classroom, and the classroom was completely silent, and the students all observed Li Yun with curious and strange eyes.

"What I talked about today, as well as these three questions, is there anything else that I won't know?" Li Yun's expression was as usual, as if he had never left at all, and he pretended to flip through the lesson plan and ask the students below.

No one answered.

Seeing this, Ji Dabao said loudly: "No." ”

Li Yun assigned the homework written on the lesson plan.

He closed the lesson plan and looked at the students below, "Let's introduce yourselves one by one." ”

The classmate who entered the first position was watched by Li Yun, stood up obediently, and reported his name and junior high school school.

"Why did you come here to study?" Li Yun asked.

The student was at a loss, "That's it." Allocated by lot. ”

"Oh. Do you live around here? ”

The student nodded.

He sat down, and the person behind him stood up and took the initiative to explain his reasons for applying to this school.

“…… I wanted to be admitted to university, so I applied for a high school with a high rate and was admitted here. ”

He didn't say the name of the school the whole time.

Li Yun called the next one again, and the next student said the same.

After that, a series of people sat down and stood up, and the content of self-introduction was nothing special.

When it came to the squad leader Yi Zhao, he said a new trick.

“…… My mom works in general affairs here, so she asked me to apply here. Yi Zhao said.

The other students whispered as if they had heard about it for the first time.

"General affairs?" Li Yun perked up, "What does your mother do?" ”

"It's to manage the playground runway, basketball hoops and whatever, and purchase basketball and football." Yi Zhao struggled to recall and came up with something to say.

"Is she also responsible for the maintenance of the school building?" Li Yun asked.

"Probably." Yi Zhao was not sure and dragged out his tone.

Li Yun saw that he was thinking, so he didn't let him sit down immediately, and he didn't interrupt without making a sound.

"The classroom seems to be in charge of everything. Before, the toilet was broken, and it was their general affairs contact to fix it. Yi Zhao said this, and his expression became very subtle.

"Broken toilet? Is the sewer clogged? Li Yun followed the temptation.

Yi Zhao's upper and lower lips touched.

"It's okay, tell me what's going on, right?"

The others looked at Li Yun and looked at Yi Zhao.

This means that the student group is relatively simple, no one thinks much about it, and they are aroused by Yi Zhao's attitude. There are also people who are simply happy and don't need to go to class, and Yi Zhao's self-introduction has dragged on for so long, maybe there will be not enough time in the future, and it will not be his turn.

Yi Zhao is not afraid to stand up and speak like this, but what he is going to say next is not suitable for teachers and classmates in class.

Li Yun was encouraging and urging him.

Yi Zhao's heart was crossed, and he opened his mouth.