Is the Real Doll the Teacher?
Physiognomy isn't always accurate, but it usually hits the mark.
Judging by that, the girl sitting next to me was definitely a delinquent.
I sat down beside her, acting like it was no big deal at all.
In a situation like this, the smart move is to just play dumb.
I pretended to scroll on my phone while casually scanning the room.
Now that I think about it...
The desk layout in our class was pretty strange.
It was a paired seating arrangement, two students per desk, and every pair consisted of one boy and one girl.
Four male students. Four female students.
I hadn't seen this kind of setup since elementary school...
Still, it wasn't that unusual, so I didn't give it much thought.
I was about to look back at my phone when—
Ding~ Dong~ Dang~ Dong~
“·····?”
What the hell did I just hear?
The wording sounded completely off.
‘Take the teacher with you?’
The teacher isn't some object, so was that really the right way to phrase it?
It wasn't just me. The other male students wore equally confused expressions.
“Take the teacher?”
“Did they mess up the announcement?”
But there were students reacting in the complete opposite way.
The girls.
The moment the broadcast ended, they scraped their chairs back and stood up without hesitation.
What was weird was how utterly calm every single one of their faces looked.
It was like they hadn't noticed anything strange about the announcement at all.
The delinquent girl next to me stood up the same way.
All the girls filed out of the classroom together.
...What is going on?
Something felt seriously off.
It was as if the girls knew about something we had no clue about.
And then—
Scrape—
The front door of the classroom opened.
It was the girls who had just left.
But all four of them were carrying something together...
...What the hell is that?
At first glance, it looked like a giant figure box.
A window box—the kind with transparent film so you could see the contents inside.
And the box was easily the size of a person.
Big enough for an actual human to fit inside.
Thanks to the clear film, the contents were visible, and what was inside was...

“...A doll?”
It had an unrealistic 2D anime appearance and skin made of silicone.
Wait. Wasn't that a real doll?
One of the girls grabbed a utility knife and started cutting open the box containing the real doll.
One of the boys who had been silently watching finally couldn't take it anymore and spoke up.
“...Hey. What is that thing?”
“Oh, this? It's the teacher.”
“That’s the teacher?”
“Yep.”
“No, no matter how you look at it, that's clearly a doll, right?”
“You'll understand once you see it in action.”
Understand what?
I was blinking in total confusion at the nonsensical situation when—
Ah.
There it was again.
Speech bubbles had appeared above the girls' heads.
The boys are going to freak out.
I wonder who's inside this time?
It must be insanely hot in there.
Yawn~ I'm sleepy. I just wanna go home.
Ugh....
...Huh?
Hold on.
Five speech bubbles?
Why five?
There were only four girls standing in front of us.
When I focused harder, I quickly figured out who the last one belonged to.
My mouth fell open without me realizing it.
The owner of that final bubble was none other than the teacher doll itself.
Wait... so that thing...
It was a living person?
In front of the blackboard, the teacher doll lay inserted into a sponge groove.
The female students and male students stood around it, quietly observing.
One of the boys asked a girl.
“So why did you bring this thing?”
“Hang on, how do you activate it again?”
With that, the girl reached out toward the doll.
Her hand went straight for the teacher doll's left breast.
Squeeze—
She gripped it so hard it looked painful just to watch.
At the same time, the text in the speech bubble above the doll's head changed.
“Teacher, please wake up.”
That was the moment.
At the girl's words, the doll slowly lifted its upper body.
“Uh, uhh?”
“What the—?”
While the other boys stumbled backward at the suddenly moving doll, the teacher doll fully stood up, stepped out of the groove, looked around at the students, and spoke.
“Everyone, please take your seats.”
Its mouth stayed closed, yet the voice came through clearly.
The voice itself was strange too. It was feminine, but it sounded like it was being broadcast through a speaker.
“What is this thing? Why is it moving?”
“Is it actually a living person?”
That was a reasonable assumption.
Looking at the speech bubble, it really seemed like someone was wearing a full-body doll costume—
“No, no. This is a student training robot.”
“Huh? A robot?”
“For real?”
“No way this is a robot.”
At the girl's words, my eyes widened involuntarily.
She was clearly lying.
Because right above the head of the girl who had called it a robot, her real thoughts had appeared.
One thing was certain: every single female student knew exactly what this doll really was.
“Its official name is ‘Teacher Doll,’ so just call it teacher.”
“So this doll is acting as our teacher?”
“Correct. And since it's a teacher, you must speak to it politely.”
“But even then, using polite speech with a doll is ridiculous.”
That was when.
Clap—
The teacher clapped once to draw everyone's attention, then looked around at the students again.

“Students, please take your seats quickly. We will now begin class.”
“Okay.”
“You heard the teacher. Hurry up and sit down.”
At the girls' urging, the boys returned to their seats with dazed expressions.
I followed them and sat down last. The teacher then spoke.
“I will now explain the subject you students will be studying.”
Click-clack, click-clack. The teacher walked to the front of the blackboard in her heels and began writing large letters across it with chalk.
The word was:
“...Huh?”
“What’s sex?”
While the other male students stared in confusion, I couldn't stop the dumbfounded look from spreading across my face.
Wait. So the subject they were teaching was literally sex?
And why didn't these guys even know what sex was?
Ah...
Now that I thought about it, of course they wouldn't.
Because I was the one who had set it up that way.
The bizarre setting where, until men turned twenty and became adults, some unknown power prevented them from perceiving or even knowing the concept of ‘sex.’
The teacher lightly tapped the blackboard to regain attention and continued.
“So, what exactly is ‘sex’? For the boys, this is probably your first time hearing this unfamiliar word. The formal term is sexual intercourse, and it is also a compulsory subject that you must all learn from now on.”
...Compulsory subject.
It was a setting I had created.
I never imagined sex would actually become a required class...
“As for what the act of sex entails, it would be faster to show you than to explain it in words. So let’s watch a short video.”
With that, the teacher walked over to the desk.
She seemed to be turning on the computer to play something.
Right after, a video began playing on the large TV on the left side of the room.
...Holy shit.
It was porn.
And not just any porn—completely uncensored, explicit porn.
I never thought I’d end up watching porn in school of all places.
This situation was seriously dizzying.
Still, even though I said that, I couldn’t tear my eyes away from the screen.
The situation might be insane, but porn itself had done nothing wrong.
That was when it happened.
“What... what the hell is that?”
“Ugh!?”
Some looked away. Some dry-heaved. Some frowned and squeezed their eyes shut.
It was the reaction of the three other male students in the class.
For a second I wondered if they were all eunuchs.
How could any guy watch porn and react like that?
Ah.
The moment I thought that, I immediately understood their reactions.
From the second they were born until this very moment—twenty full years.
These guys had lived their entire lives with zero concept of ‘sex’ or ‘sexual activity.’
They had probably never even masturbated. So when they saw porn for the first time, it was no wonder it looked disgusting, filthy, and grotesque to them.
In fact, that was exactly what they were thinking.
“·····.”
I hadn’t expected them to be this disgusted, but okay.
What kind of world had I created?
“Hey.”
That was when.
The quiet voice calling from right beside me made me turn my head without thinking.
It was the blonde delinquent girl—Seo Jia.
“You okay?”
“With what?”
“With that. You fine watching it?”
I looked back at the monitor and glanced around the room.
Yeah. My reaction was clearly different from the other guys’.
“You’ve got a strong stomach, huh?”
It wasn’t a strong stomach. I was just used to it.
There wasn’t a single guy in the world who hated porn.
I answered calmly.
“It’s pretty watchable.”
“Oh yeah?”
Seo Jia let out a small snort of laughter and turned her eyes back to the monitor.
Curious about what she was really thinking, I checked the speech bubble above her head.
...She wasn’t normal either.