Undercover High School (2025) s01e01 Episode Script

1
(All places, organizations, characters,)
(incidents, and backstories in this drama are fictitious.)
Where should I begin?
The secret operation
that drastically changed my world of darkness.
It all began on that very day.
That night I had myself immersed in the operation
like any other mission.
What are you gazing at me for?
Is this a blind date?
As if you need to translate that.
Tell him to show me the money.
Is it in dollars?
Thank you.
The item.
He wants to see the item.
Oh, sure.
He wasn't someone easy to escort here.
I breathed in all the dust at the museum
just to have him accompany me.
Watch yourself.
I've confirmed the item.
Listen up. I say this again.
It's a national treasure we were barely able to locate
by tracing transactions on the black market.
It cannot be damaged.
We are to arrest those involved,
but securing the cultural heritage is also a priority.
Darn, it's quite the drop.
What now?
Are you kidding me?
Who are you, darn it?
Next.
Why you
Hands off.
What the
You!
Keep your hands off what belongs to others.
I surrender.
Item secured.
Agent Jeong, I'll get going first.
Sure.
You're not going anywhere.
Don't you dare
Sweet.
Agent Jeong!
Don't!
The next one will be for real.
Jeong Hae Seong, have you lost it?
Put it down unless you want a bullet to the brain.
You have three seconds.
- Three, two
- You!
Drive!
Step on it.
That was electrifying.
Backup has arrived on scene.
They'll soon catch up with you, so keep on him.
There's no time.
He'll soon hit the main street and must be apprehended now.
That's an order.
Jeong Hae Seong, don't do anything dangerous and follow
Hello?
We got disconnected.
What the
Pull over, you punk.
Seriously? Knock him over!
Where did he go? Is he gone?
I guess he's gone.
Hey!
What?
What
Rock the car side to side, darn it!
What now?
He's up there!
Rock the car hard!
Keep it up.
Side to side!
Come on, side to side.
No, don't.
Wait. Hey!
Darn!
What's with him?
Stop!
Are you out of your mind?
You're done for.
No
Hae Seong!
That's freaking awesome.
Mission complete.
What about Mr. Park and the Chinese broker?
They were turned over to the prosecution,
and Mr. Park has been hospitalized.
As well as the driver.
Prison food will knock some sense into them.
Anyway, good job on the mission.
And Yeong Hun
You
That was some good work.
Now, let's have a look.
How has Buddha been?
Goodness, I know
it's been rough for you.
From here on out, we'll give you the royal treatment.
(National Intelligence Service)
What What happened to it?
This!
Where is the hand that his chin rests on?
His arm
Sir.
This
This looks like a bullet.
A bullet?
Are you saying someone shot at a national treasure?
No one fired a shot at the scene.
The arm's been completely severed.
Which punk had the audacity to shoot
Darn it.
(Serving in the shadows to light the way forward)
An Seok Ho!
What now?
How will you fix this?
- I'm sorry.
- You think an apology will suffice?
Take a deep breath, Director.
Domestic Team Four may lack in many ways,
but I doubt this was on purpose.
Whatever.
I want Agent Jeong gone.
- Sorry?
- Did I stutter?
One has to take the fall for his.
Should it be you instead?
Sir, hold on.
Not Agent Jeong, sir.
Please consider his devotion to this country.
I know Agent Jeong is one of the best we have
and that he's wasting his time being on your moronic team.
But who are we?
The NIS.
A single mishap outweighs 100 successful missions.
Have him gone by tomorrow.
That's an order, Senior Agent An.
- Director, please
- Come on, Seok Ho.
No, let go of me.
Director!
I'll do whatever you ask.
- Let go!
- Senior Agent Gong.
Darn you.
Yes?
Are you sure you're willing to do anything?
Absolutely. Of course, sir.
My gosh.
How could a bullet ricochet like a ball on a pool table?
Give me a break.
There's being unlucky and then this.
I'm sorry.
I should've been more careful.
Was it necessary for the director to go this far?
It's not like Hae Seong shot it on purpose.
It happened in the line of duty.
He shouldn't have to resign over this.
Sir, are you really going
to let Hae Seong turn over his badge over this?
As if I have any power to stop it.
I'm also someone who follows orders.
But when the door closes, a window opens.
He gave us an assignment earlier today.
Hae Seong, it's the only way you'll get to keep your job.
There's this school in Seoul.
Byeongmun High School. I'm sure you've heard of it.
Hey, wait.
It's one of Korea's most prestigious private high schools.
The first chairman of the school was Seo Byeong Mun.
A traitor to our people who was never recorded in history
and the keeper of Emperor Gojong's secret safe.
Ten tons of gold bars from the Emperor's treasury
were given to Seo Byeong Mun for safekeeping
which was to fund the nation's independence movement.
The Emperor trusted Seo Byeong Mun,
but the latter had other plans.
He deemed the nation to be hopeless
and pocketed all that gold which would be equivalent
to over 800 million dollars today.
Hurrah for the independence of Korea!
Hurrah for the independence of Korea.
- Hurrah for
- Hurrah for
the independence of Korea!
Hurrah for the independence of Korea!
Hurrah for the independence of Korea!
Hurrah for the independence of Korea!
But when Japan fell,
Seo Byeong Mun had to go into hiding.
- In here! Come on!
- Get him!
- Go after him.
- Search every inch!
All that gold he wasn't able to take with him
is said to be in slumber somewhere
awaiting the day to see the light.
That's more like an urban legend.
Exactly. That was my thought at first.
But then
the director showed me this.
It's absolute proof that the gold bars exist.
With this as its lead,
the NIS once investigated the Byeongmun Foundation.
However, nothing was uncovered.
Where are the gold bars then if the foundation doesn't have them?
The one place the NIS didn't think to investigate at the time.
Byeongmun High School.
Recently, the NIS received an anonymous tip.
We know that the gold bars hidden by Seo Byeong Mun
are somewhere within the school,
and that the foundation will be smuggling them out of the country.
All of the remaining gold bars?
The whole 800 million dollars' worth?
If the gold leaves the country,
it will be a huge loss of state funds.
The ramifications it will have on the country will be catastrophic.
Hae Seong, what's your take on it?
Where should I start?
Here's the actual mission.
Hae Seong, you're going back to high school
as a student attending Byeongmun High.
Find the gold
hidden by Seo Byeong Mun, the traitor to our people.
This is Operation
Undercover High School.
Have you lost your mind?
We don't have a lot of time.
The briefing will be tomorrow.
Just a second.
What is this nonsense?
- How can I go back to school?
- Don't worry.
You look incredibly young for your age.
If anyone doubts your age,
say that your face aged rapidly from a bad batch of herbal medicine,
and stick to that story.
- Are you serious?
- Yeong Hun, how old are you?
- I'm 26.
- You're in your 20s?
Why are you startled by that
when I've been calling you my senior?
I only thought that because I joined the agency before you did.
I addressed you respectfully thinking you were older than
me.
How old did you think I was?
I thought you were in your early 40s.
Was it the herbal medicine you had as a kid?
- It was turtle extract.
- He had turtle extract.
See?
How about this, then?
I'll go undercover as a teacher.
No, that won't work.
There aren't any available positions,
and the foundation would know.
- Still
- No, that's enough talking.
I promised the director I'd have you work this case.
(Have a Drink With Su A)
I can't do this. I won't.
Would you rather get the boot, then?
Come on. There's no other way.
We're to take shelter first when it pours.
Let's work on this case, Hae Seong.
We'll arrest all those who are corrupt,
retrieve 800 million dollars in gold that belongs to the country,
and
make a triumphant return.
Did she come back because she missed me?
Yes! Nice! I love that Kwang Du is here
- I love you too!
- The one I waited for is Kwang Du
Kwang Du, I love you so much
So much
Nice!
- You're the best!
- Thank you.
My gosh, Ms. Oh.
You could be a singer.
The spirit was alive in your song.
Come here and let me pour you a glass.
A drink from you, Vice-principal Baek,
would be an honor.
Happy birthday, sir!
- Happy birthday, sir.
- Happy birthday.
- I'm the one who's grateful.
- Move.
You held a party just for me.
I love you all.
He would've sulked all year if we hadn't thrown a party.
Like last year.
What a nutjob.
This is how you drink these days.
Bottoms up!
All of it?
Come on. Are you going to ruin the mood like this?
That would definitely be upsetting.
I'm the man of the hour today.
How can you think of becoming a full-time teacher
without listening to your superiors?
That would probably knock her out.
I was only joking.
Bottoms up.
- Bottoms up.
- Bottoms up.
- Bottoms up.
- Wait!
I'll drink it.
That was too loud.
Why would you drink it instead, Mr. Lee?
Well I'll be her white knight.
Mr. Lee, are you here on a blind date?
Sit down.
- Bottoms up.
- I'll drink it.
I can hold my liquor like no other.
As if that makes any sense when you only drink coke.
Now, sit!
Sit. Don't move. Sit.
Wait. Don't move.
Enough!
I, Oh Su A, homeroom teacher
of Class 1 of Grade 11 at Byeongmun High,
will drink this and die today.
That's the spirit.
Bottoms up!
There you go. It's going down.
You're doing great.
Good job.
In it goes. She's chugging it down.
No way. She's drinking it all. Goodness me.
She emptied it!
I'll see you tomorrow, then.
- Good night.
- See you tomorrow.
- Good night.
- Let's go home.
There's a cab.
Come on. You can't leave without a third round of drinks.
How about a club for round three?
Let's go clubbing!
- Clubbing!
- Ms. Oh, I'm sorry.
- I apologize.
- No.
Mr. Lee, stop her, will you?
No, don't be sorry. Let's go clubbing!
Ms. Oh, you're drunk, so let's call it a day.
What? No way.
I'm not tipsy at all.
Happy birthday, Mr. Baek.
- Good night, sir.
- Thanks.
Stop! Vice-principal Baek!
My goodness.
That sobered me right up.
Darn it.
Darn.
I'll get going, sir.
What
Sir, please step on it.
Now!
If Hae Seong refuses
The team could be dismantled?
I can't be sure, but that's what was implied.
They may call it that, but it's them forcing us out.
They were waiting for the right excuse.
To be honest,
we've been riding Hae Seong's coattails all this time.
Cheers.
(Have a Drink With Su A)
Ma'am, one bowl of hangover soup, please.
Unbelievable.
She crawled in here wasted again.
Go home, you brat.
Unbelievable.
Did I open this restaurant to make a living
or to feed my daughter her hangover soup?
I'll pay.
It's not like you have a lot of customers.
Always giving me the lip.
- Ma'am.
- Yes?
- I'd like to get the check.
- Sure.
- Did you enjoy the food?
- We did.
That's one gorgeous face.
Are you a student?
University students?
No, we're in 11th grade.
We're 17.
Come on. That can't be true.
I checked all your IDs.
Ma'am, you're too gullible.
Fake IDs are easy to come by these days.
You know what'll happen
if we report you for serving alcohol to minors.
- Thank you for the meal.
- But
But that's
Hold up.
What now?
I can't believe you're still trying to pull this
when a new law has been implemented.
Which school do you attend?
And who may you be, old lady?
Old lady?
I work here.
Seriously?
Then what happens to her isn't your concern.
Don't stick your nose in where it doesn't belong,
- Goodness.
- and clean the tables.
Kids these days don't let things like that fly.
Take a step closer,
and I'll call the cops.
Hey. Who do you think you are?
Who are you
to yap on about calling the cops on me?
Are you my mom or teacher?
Tell me.
Who do you think you are?
Who are you to
That's enough.
What now, you punk?
- Darn!
- My gosh.
Don't just stand there!
You
You punk!
Hey!
Why you
Darn.
You!
What
- That hurts.
- Come on. Let's go.
Get up.
Hey, pay up!
Pay before you go, you punk!
Yes, ma'am.
- Oh, no.
- Hey, what the
- He's paying. This guy here!
- Hey!
Darn it.
Here, 50 dollars.
I'm sorry.
My goodness. Thank you very much.
Are you hurt? Are you all right?
I'm fine.
No!
Don't be silly.
Please don't worry about it.
It's totally fine, so just get going.
Just give me some freebies next time.
No, but
Well
Then please come again.
I'll give you our large portion on the house.
Thank you.
My gosh. I should thank you.
Bye now.
I envy his mother for having a son like him.
Anyway, you!
Didn't you want to get a full-time teaching job?
Don't be so reckless.
Mom.
I have this fluttering feeling in my chest.
Your chest is flat. What's there to flutter?
Mom!
Darn you!
(Jeong Si Hyun)
This is the problem with orphans.
They need a beating to get their act together.
Seriously.
- Hey, let's go.
- Okay.
Darn it.
Sir.
I'll do it.
Byeongmun High School.
Seo Byeong Mun,
the head of Internal Affairs of the Empire of Korea,
launched his eponymous foundation and founded the school.
The school was founded
under Japanese rule with the goal of
achieving full Japanization of the Korean people.
At the time, the school was as highly regarded
as Jedok High School, which was founded
by the Japanese Governor-General of Korea.
It's a prestigious high school, and every year,
over a hundred of its students enter the top three universities in Korea.
Many influential politicians,
business leaders, legal professionals,
and media professionals are Byeongmun High graduates.
Using such strong connections
as its weapon,
the school has formed a power cartel
with some of the most influential people in the country.
(Byeongmun High School Development Fund)
(One Million Dollars)
(Donation from Byeongmun High School Alumni Association)
(Donation from Byeongmun High School Alumni Association)
Ma'am.
The Minister of Education is here.
Oh, my.
Please come on in.
I know you're a busy man.
- Thank you for coming.
- It's my pleasure.
Please look kindly upon my daughter.
It's nice to meet you.
Please take a seat.
Byeongmun High's school culture
is akin to military culture. It's all about discipline and rules,
and the seniority among students is strictly respected.
Only the students in the top 0.1 percent
are qualified to join the student council.
- Hey, you.
- Yes?
- Are you a freshman?
- Yes, I am.
I guess they didn't tell you at the entrance ceremony.
Here, first-year students aren't allowed to wear earrings.
Oh, I'm sorry. I forgot.
- Be careful from now on.
- I will.
The school is becoming lax on the rules.
Book a meeting with her homeroom teacher.
They have so much power and authority
that no one at the school
can dare to mess with them.
Okay, so?
Do we have a detailed plan?
How are you going to make me look like a student?
- Agent Park.
- Yes.
Here are your family relation certificate,
student record, and so on, which we put together
based on your information and background.
(Family Relation Certificate, Transfer Application)
"Applicant category, socially disadvantaged?"
- Me? Why?
- Byeongmun High
doesn't welcome transfer students
unless the student makes a donation to the school.
I'll donate some money. How much?
At least 100,000 dollars.
Do you have that kind of money?
Someone's bluntly straightforward.
What's this?
I'm transferring from a school in Ttangkkeut Village, Haenam?
Most students will show
a lot of interest in transfer students.
They'll definitely ask you about the school you transferred from.
To prevent the likelihood of them knowing someone at your old school,
I chose the farthest region.
It sounds absurd, but it makes sense.
You live in a rooftop room near the school.
Your uncle is your guardian, and he's a deep-sea fishing crewman.
So, you live alone in Seoul.
Next.
(Must memorize)
(Currently trending slang terms)
(NWOMA: Nothing without my adorability)
(Ageleage: A portmanteau of "age" and "mileage")
(Currently trending slang terms, must memorize)
Is that even Korean?
Memorize all of them.
You need to be able to have conversations with the students.
Tell me.
Who was your favorite girl group? The most recent one.
Girls' Generation?
Girls' Generation? No, Wonder Girls is the best.
Study and memorize everything here.
And don't even mention Girls' Generation.
Wonder Girls too.
Do not mention them.
As I said earlier,
Byeongmun High is no ordinary high school.
The same goes for its students and their parents.
You.
Don't get tangled up with any of the students.
Getting tangled up with any of them
will only increase the likelihood of getting your cover blown.
- Do you understand?
- Yes, sir.
Those of us here
and the director are the only ones who know about this operation.
The operation is on
until Agent Jeong Hae Seong
finds the national treasure
valued at 800 million dollars hidden somewhere in that building
and returns it to the national coffers.
The operation will commence this coming Monday.
Get ready, all of you.
Any questions?
- No, sir.
- No, sir.
- Then you're dismissed.
- I have a question.
But you're sure
the gold bars do exist, right?
Well, we received a tip-off,
- so they must be there.
- What?
What if this is a part of the director's bigger plan?
To make us go after something that doesn't exist to fire us?
No.
You all saw the picture.
They exist.
I'm sure of it,
so don't you worry.
All right. Dismissed.
What is this?
I don't think they exist.
What choice do we have? We still have to do it.
(Senior Agent An Seok Ho)
This just came in.
Your aunt will drop by shortly to check up on you.
From cleaning to the air quality in the house,
make sure everything's perfect at home.
You know what to do.
Your aunt is determined to make you
move back home.
- I'll get ready.
- Good.
The place looks pretty good.
- Mom.
- Yes?
Come and join us. You're making him uncomfortable.
Yes, that's enough.
The meat is all cooked now.
All right.
Hey, Hae Seong.
Are you
not struggling to pay your monthly bills?
You won't have to worry about that if you move in with us.
Mom.
Okay, you little brat.
Did I ask you to pay for his bills? Why are you yelling?
Anyway, you're single, and you live alone.
Your place is unbelievably clean.
Hey, that startled me.
I'm sad that you don't need my help.
It's all thanks to you who raised me so well, Auntie.
My goodness. You're such a sweet talker.
Here, Auntie. Open wide.
What an eyesore.
Right, Dad?
What are you doing?
Nothing. Eat up.
Well
Since the whole family is here,
we should make the announcement now.
Starting on Monday, Hae Seong will be sent
to Byeongmun High School on an operation.
To my school? Why would he come to my school?
It's top secret, so ask no more.
And watch your mouth at school.
Top secret, my foot.
If you put Hae Seong in danger again,
- I will cut you up like this.
- Auntie, no!
Calm down.
Put it down, all right?
- Let me pour you one.
- Okay.
Here.
Don't worry. I'm not a little boy, you know.
You'll always be my little boy.
All right, come on.
Let's drink, okay?
All right. Here's to the happiness and health of the family
and to the success of Hae Seong's new operation.
- Cheers!
- Cheers!
(Jeong Hae Seong)
See you later.
Get out of my way, will you?
Me?
Why can't she just go around me?
Who is he? A transfer student?
I guess.
These brats.
Ms. Oh?
Is Ms. Oh not here yet?
What time is it now? I can't believe she's not here yet!
No wonder people say teachers have
- no authority nowadays!
- This is nuts.
Teachers, will you keep this up?
- Excuse me.
- Hush.
Is she trying to shut the school down?
Ms. Oh?
(Byeongmun High School)
Goodness, you scared me. Where did she go?
Anyway, who are you?
I'm Jeong Hae Seong.
I'm a transfer student.
I see. I'm busy now. You can introduce yourself later.
Did you see the teacher who was here?
I swear, she was right here.
Right.
Well
She went that way.
Thank you. Ms. Oh!
Ms. Oh!
Where did she go? Ms. Oh!
So, you're Hae Seong.
The transfer student joining my class.
- Your class?
- Nice to meet you.
I'm Oh Su A, your homeroom teacher.
I teach Korean History.
And please forget what you just saw.
It's nice to meet you.
You might find it hard to adapt to a new school environment at first.
If anything stresses you out, just come to me anytime.
I'll do my best to help you as much as I can.
Okay.
By any chance, have we met
Wait, at the diner?
Come here.
- Are you out of your mind?
- It hurts!
- Don't talk casually to me.
- Ms. Oh!
- Hey, turn around!
- It hurts!
- Come on, quick!
- It really hurts!
It hurts!
Ms. Oh!
- It really hurts!
- Shut it!
I can't believe this.
How did you get around the ID check?
Right, you probably have a fake ID.
Were you at a funeral or something?
You were dressed in a suit!
I'll let you off this time since you just transferred here,
but watch out.
If I catch you again, I'll send you straight to the counselor!
Goodness. I can't believe this.
Hey, you've done nothing to be proud of either.
"Hey?"
I mean, you shouldn't be so proud of what you did either, Ms. Oh.
Didn't you fight alongside me?
I saw you ruthlessly beat up those kids.
- Hey.
- With a steel tray.
Hey, that was I was just trying to save you!
I never asked you to save me.
I admit what I did was wrong,
so you should admit it too.
Let's cut each other some slack and let it go, okay?
It's my first day here, you know.
Oh, the morning assembly will begin soon.
See? Here.
Where's the classroom?
(Grade 11, Class 1)
Ye Na!
Hey, I'm seriously so jealous.
Your mom I mean, can't you talk to Chairwoman Seo
and take me with you to France on the exchange program?
Hey, I thought you were busy training for your idol debut.
Don't listen to her. Just take me with you. Please?
I won't leave until the term ends. It's a long time away.
And I'm sorry to disappoint you girls.
I already decided who I want to take on the trip.
Who?
Me?
You know I can't live without you.
You'll come with me, right?
How much does it cost to join the exchange program?
I'm not sure.
The school will take care of some of the expenses,
so I'd say 10,000 dollars?
What? Did you say 10,000 dollars?
Oh, my. It costs 10,000 dollars? Goodness.
- I see.
- Good morning, Mr. Writer.
My gosh.
Look at this loser scribbling away again.
Hey, Mr. Writer.
Have you finished preparing for Tae Soo's performance assessment?
Sorry. I'll take care of it quickly.
Hey, Dong Min.
Be good.
You know I can be scary when I'm angry.
- Yes.
- Hey, Ms. Oh is here!
Come on.
Quiet down! Get ready for your morning assembly.
We have a new student joining us as of today.
Come on in.
- He's good-looking.
- Hey, look.
I've found my Prince Charming.
I saw him by the main gate earlier.
- Is he a celebrity or something?
- My gosh!
I'm Jung Hae Seong. Nice to meet you all.
Applause!
Let's see. Is there an empty desk?
You can sit there.
All of you should help Hae Seong adjust to his new environment.
I'll check attendance now.
Han Tae Hee.
- Hi.
- Lee Yeon Jae.
I'm Lee Dong Min.
- Jang Ki Yeon.
- Nice to meet you.
- Let's be friends.
- Jeong Sang Hun.
Kim Woo Jin.
Hae Seong.
Come to the rooftop after this.
Hae Seong.
Are you insane?
You're here as a student?
You can't call me "insane" when
Goodness.
Stuff happened. Don't ask.
There's no way you can be a student.
I thought you'd be a teacher or faculty member.
Do you think I want to be in this uniform?
See what it's like when you start working.
Forget everything else. I'll help as best I can.
Finish your mission and get out of here quickly.
And promise
you won't tell Mom and Dad how I'm doing at school.
Is something wrong?
Don't ask questions. Just do as I say.
Okay. I promise.
- You promised.
- Yes.
Break it, and I'll never see you again.
Fine.
Let's do this.
A year later, Emperor Gojong
moved from the Russian Legation to Gyeongungung Palace.
He came home.
No way.
I'm so sorry.
How dare you try to hit my throat?
Sorry.
Hi, Transfer Student.
What's your social media handle?
I'll send you my AW.
"AW?"
(An honest message sent anonymously)
You don't know what "AW" means?
Are you a primitive, Hae Seong?
No. I know what it means.
I don't know what you want me to promise, but no thanks.
That's fine. It's okay.
You're a jokester.
- He's witty.
- I'm kidding.
I knew it.
You mean I look familiar.
It's not at all what I learned.
What the heck is an AW?
"AW?"
Weren't they saying "awww" because you're cute?
Why am I even asking you? Bye.
Darn it.
Rock-paper-scissors.
Go!
- Get out of the way.
- Gosh.
- Okay.
- Wait.
Hurry up.
Hey.
- Sorry.
- It's my ball.
What do you want?
You can't
- Hey.
- Watch where you're going!
Let's keep streaming.
(Jeong Hae Seong)
No, let's go over that move again.
- One, two, three.
- One, two, three.
Hurry up.
I want to go home.
(Keep Out)
(Keep Out)
(Byeongmun High School)
(Byeongmun High School)
(Danger, Safety First)
(Electricity Meter)
Did you stuff your ears with something?
Hey. Lee Dong Min.
We pay extra tuition
so you can study for free.
At least do as you're told.
Am I wrong?
Is it over if you don't bring it?
Why do you want my grandma's ID?
Are you being funny?
Why do you need to know that?
Just do as you're told and bring it.
This isn't working.
You need a mental reboot.
Stand still.
Don't move, okay?
What's that noise?
Hey.
You!
Stop and come on over.
The transfer student?
What are you doing here?
How long were you here for?
I got here just now.
Where's the toilet?
The toilet? You idiot.
A spectator should be made to pay.
Get us some dumplings and fishcake skewers.
We'll pay for it
later on.
(Lee Dong Min)
What?
What do you want?
- So what if you glare at us?
- So what?
Don't go too far.
I've been watching and this is too much.
Stop it and get back indoors.
I'm saying this for your sake
Hae Seong.
You must hold back.
What happened? Why did he stop talking?
Is something over there?
So what?
You don't want to go?
Shall I get sodas too?
You startled me, you punk.
- You darn eyes
- Okay. I'm off.
Get going right now.
- Get running.
- Okay.
Three, two, one!
- I can still see your feet.
- You're pretty fast.
It must be nice to have a loser friend, Dong Min.
The transfer student was in a fight at your restaurant?
The face you're making is the face I made earlier.
You have no idea how shocked I was.
I hate problem students.
Do you think he's covered in tattoos?
I never imagined he'd be in high school.
He was in a suit drinking alcohol.
Mom.
I have this fluttering feeling in my chest.
Are you insane?
What's up with her?
This is the last time I let him off.
If I catch him doing anything,
I'll make sure he pays.
It was another long, hard day.
Get home safe. I'll see you tomorrow.
What's our class motto?
Look at the blackboard
- As if it's BTS.
- As if it's BTS.
(Class Motto: Look at the blackboard as if it's BTS.)
Perfect. That's all.
- Was your name Dong Min?
- What?
Yes. That's my name.
Instead of just taking it, try fighting back next time.
Holding back doesn't always work.
Okay?
You couldn't fight back either
when Yoon Chul kicked you.
My butt's firm, so it's fine.
Let me ask you something.
What's the old building in the back?
The one that's out of bounds.
That one?
It's our old facility that we don't use anymore.
It's so old that it could collapse.
How old is it?
It was probably built during the Japanese colonial era.
It's the oldest of our school buildings.
The Japanese colonial era?
Yes.
There are rumors that it's haunted
and that bodies are buried inside.
I love spooky stories about our school.
If you're interested in
(Seo Myeong Ju)
(Assemblyman Yu Ja Kyung)
(My deepest condolences)
I offer my sincerest condolences.
Thank you for coming.
I don't know
if this will offer any comfort.
Don't worry about your son.
Our Byeongmun Foundation will look after him.
Thank you, chairwoman.
Make room for her son in our special class.
Yes, chairwoman.
Thank you.
You never truly know someone.
The man had some influence within the school.
Who'd have thought he'd hang himself?
It's a shame.
He was at loggerheads with you over the Education City,
but he wasn't a bad guy.
Why did he upset you so much only to die like this?
Assemblyman Park Min Cheol.
Yes?
We're here to mourn him and send him off.
Talk about that later.
I apologize.
I only meant to show my pity.
But all is not lost for him.
You promised to look after his son.
I'm sure Assemblyman Choi can rest in peace.
He will, right?
I really hope so.
Did you clean everything up?
The case was closed without an autopsy.
That's enough mourning.
We dealt with the headache.
Shall we get to work?
Sure.
Byeongmun High's old building?
It's not easy to keep so many gold bars in one place.
That requires space, necessary security,
and a way to maintain temperature
and humidity to prevent discoloration.
All that must be checked regularly.
So what?
What do you think is odd?
The electricity meter.
(Old building)
The building was neglected for a long time,
but the meter was running.
(Electricity Meter)
People were told to keep out for safety reasons,
but if they truly cared about the students' safety,
they'd have torn it down,
not left it up for this long.
That's why you think it's the old building?
If the foundation is hiding the gold bars illegally?
I think it's worth checking out.
(Old building)
I'm off.
(Old building, Locked entrance)
(Assemblyman Yu Ja Kyung, Yoon Yeon Chae's mom.)
(New Head of National Land Council)
(Byeongmun High School)
(Keep Out)
Darn it.
(Undercover High School)
Last night, someone broke into the old building.
The person will be back.
Let's see what they get up to.
Stay away from the old building.
Did they hide gold and jewels under the floor?
I'm warning you.
You'd be better off staying away.
Especially from the basement.
I should know. I went there.
Let's wrap up the mission today.
Follow me.
Are you a thug? Are you into crime?
Is the punk out of his mind?
I'll keep an eye on you.
What are you up to?
Are you Jeong Hae Seong?
Don't be intimidated.
I said to stop.
(The epilogue is coming up.)
Yes.
This is it.
This is a real student.
Applause.
Applause.
I feel awkward in this. Are you sure it'll work?
Whatever. You're it.
Let's go eat.
You're it.
I don't get it.