Lu Chao recognized it, this girl is Cao Yongmeng, who did a task together last time, and earned 330,000 yuan with Lu Chao.

Last time, Cao Yongmeng was in his twenties, but now he has been changed to seventeen or eighteen years old, and he looks quite smart.

At this time, it's best not to reveal your identity as a player, otherwise you will be looking for death and giving points to other players.

Cao Yongmeng nodded hurriedly, with an expression of admitting his mistake.

Just then, the class bell rang.

Lu Chao's mind immediately appeared in his class and class information.

In order to avoid being recognized as a player, it is better to go back to class and behave like an NPC student at this time.

Lu Chao raised his head and glanced around very covertly, and sure enough, most of the people walked in the direction of the teaching building, pretending that they were really NPC students.

Lu Chao entered the teaching building according to the information that was forcibly implanted in his head, and went up the stairs to the classroom of his class.

Sat in the seat where he was as indicated in the forcibly implanted message.

He remembered coming to this classroom.

It's the classroom where he took the task in the treasure map.

There were about twenty students in the classroom.

A middle-aged female teacher with glasses, a stiff face, and a not-so-good-looking teacher walked in and began to lecture.

It's about high school math class.

Although Lu Chao learned math well in high school, he has basically forgotten it now.

Listening to these formulas and stuff again, I can't help but have a headache and drowsiness.

He held his textbook up in front of him, his head resting on the table.

Lu Chao certainly didn't dare to sleep in this extremely dangerous game.

Facts once again proved that the sound of the teacher's lecture was the best lullaby in the world, although Lu Chao didn't want to fall asleep, but in the sound of this math teacher's lecture, he fell asleep unconsciously.

……

"It's cold."

Lu Chao opened his eyes.

He found him in the woods of the wilderness.

In a simple tree shed made of tree branches.

There was snow everywhere outside.

The fire in the nearby open space had been extinguished.

His body was also a little stiff from the cold.

Xiao Hei huddled around him and slept soundly.

"Where's Yaya?" Lu Chao hurriedly looked around left and right.

Yaya is gone?

Where did she run in this ice and snow? Will it freeze to death outside?

Lu Chao was in a hurry, and suddenly woke up.

……

The math teacher was still singing a lullaby.

"It's a desperate game! I actually fell asleep! Lu Chao wanted to slap himself.

After a while, the math teacher's voice suddenly stopped.

The classroom became incredibly quiet.

It's so quiet that it feels strange.

Lu Chao raised his head and looked at the podium from above the erected textbook.

The math teacher had his back to this side, not writing on the blackboard, not knowing what he was doing.

Lu Chao glanced at the classroom behind him, and found that the students behind him were all facing away from him, as if they were looking at the blackboard at the back of the classroom.

Lu Chao couldn't help but feel a little strange, what were they looking at on the blackboard in the back?

Lu Chao also looked at the blackboard at the back of the classroom.

It's empty, there's nothing.

"Brother, what are you looking at?" Lu Chao reached out and patted the boy in the seat behind him.

The boy didn't move.

Lu Chao always felt that something was wrong with this boy.

After thinking about it, he glanced back at the teacher on the podium, and saw that the teacher was still facing away from this side, so he walked to the front of the boy in the seat behind him, and wanted to see what he was looking at, what his expression was, and why he didn't move.

After Lu Chao walked over, when he saw the boy's face, he couldn't help but get goosebumps.

This boy doesn't have a face at all, and the blackboard behind him is also the back of his head!

He has the back of his head in front and the back of his head!

No wonder I felt a little strange when I looked at him just now, because he was actually sitting facing the teacher, with his arms on the table!

"What the hell?" Lu Chao walked around the classroom, and found that all the students had the back of their heads in front and back, and they didn't have long faces!

"A demon in a classroom?"

"Looks like you can earn ten credits for killing a demon?"

Lu Chao pondered in his heart.

At this moment, all the students stood up from their seats and looked at Lu Chao...... But he looked at Lu Chao with the back of his head.

"What does this mean? Want to kill me? Lu Chao looked at the group of students in front of him, and his whole body was cold.

All the students at the back of the head gathered around Lu Chao, and Lu Chao kicked down one of them and fled in the direction of the classroom door.

But the classroom door was locked, and it couldn't be opened.

The students in the back of their heads surrounded Lu Chao by the door of the classroom again.

Lu Chao hurriedly ran to the window, ready to smash open the window glass and escape from the window.

After lifting the bench, Lu Chao couldn't help but feel stupid.

Outside the windowpane, it's a wall!

There was no way, Lu Chao picked up the bench and smashed it at the back of the head of the students who surrounded him.

Although Lu Chao was extremely brave, he was a mortal after all, and after smashing down a few boys with the back of the head, more boys with the back of the head rushed up and pushed him to the ground with their hands and feet, and then strangled his neck with their claws, grabbed his belly, and made Lu Chao scream loudly in pain...... Woke up.

All the students looked at Lu Chao together.

The math teacher who was lecturing on the podium also stopped and looked at Lu Chao.

Their faces were normal, and some students found that Lu Chao had nightmares after falling asleep, screaming and waking themselves up, and couldn't help snickering there.

Lu Chao hurriedly covered his mouth.

Was you dreaming just now?

That...... Has he woken up now?

"Classmate Lu Chao, answer the question I just asked." The math teacher called Lu Chao's name.

"I ...... My ears are not very good, I didn't hear clearly just now, can you say it again? Lu Chao asked the math teacher.

"If the angle of inclination of a straight line at the focal point of the parabola, where the parabola is at points A and B, and A is above the x-axis, what is the range of values for |FA|?" The math teacher glared at Lu Chao, and then repeated his question.

Lu Chao's mind went blank.

"Shouldn't it? Isn't this stuffed in my head? Why do I hear this question as if I were listening to a book from heaven? ”

"I don't know the answer, why don't you listen to the lecture well? It's not a good habit to sleep in class! And also yelling to affect other students, do you think you are doing the right thing? The math teacher reprimanded Lu Chao.

The other students snickered again.

"I was wrong." Lu Chao honestly admitted his mistake.

"Sit down." The math teacher saw that Lu Chao's attitude was still more sincere, so she didn't dwell on this matter anymore and continued her lecture.