Class of Lies (Undercover Teacher / Mr. Fixed Term / Miseuteo Kikanjke / 미스터 기간제)

Only 35 minutes left.

What is this? - Mr. Gi.

Gosh, how annoying.

It's a math test. We have no time to lose.

Is it you? Darn it.

Focus on your test. You have more than 30 minutes left.

And I turned off the phone. Focus now.

Okay.

All right. Send in the third batter.

Mr. Gi.

Yes. What is it?

I'm done. Can I go out?

There's some time left. You'll have to wait.

Can I at least get my phone back?

I have nothing to do.

I can't give you your phone back until everyone is done.

What? Is there any reason why you need your phone right now?

Then is there any reason why I can't go out?

What?

Once a third of the time has passed, I can submit my answer sheet...

and study on my own according to the school rules.

Is there any special reason for you to stop me from doing that?

What's this?

What?

This photo...

Jung Su Ah?

Unbelievable.

I hit the jackpot.

What's happening?

Jackpot.

Don't disconnect yet.

Why are you standing up? Stay seated.

I don't know what's with you.

It's not like I'm breaking any rules.

Mr. Gi, just give him his phone. It's distracting.

Seriously. - What is this?

Just let him go out. - I can't focus.

It's so distracting.

Darn it.

I'll submit my answer sheet anyway.

Didn't you hear me?

Stay seated.

That's strange.

You always make a point of sticking to the rules.

And why are you being so unreasonable now?

Suit yourself.

I'll just do what the rules say.

Let me check my phone in front of you and return it.

That's no problem, right?

Oh, come on!

My phone's brand new! - Darn it.

Give us more time for the test! - My phone.

I'm going to submit a complaint.

Sorry. I'll give you more time. Sorry.

Here it is. Yu Beom Jin.

Here.

What? You kept asking for it.

It's hot.

My phone's hot.

I turned it off before turning it in.

How could this be?

Well, maybe there's something wrong with the battery.

Maybe. I probably should have it checked.

To see if it's really a battery problem...

or if it's something else.

Gosh!

I said not to disconnect!

Good job.

You did a good job.

Good job, everyone. - Thank you. Bye.

Good job.

Well done.

Hey. - Hey!

Why did you disconnect it? I said I hit the jackpot!

What did you find?

There were pictures of Jung Su Ah on Yu Beom Jin's phone.

They were her profile pictures released by Lee Tae Seok's agency.

What?

It doesn't end there.

I also found a suspicious app on his phone.

Mr. Gi, what are you doing?

Ms. Shin.

Aren't you going to submit the answer sheets?

You'll get in trouble with Ms. Jun if you submit them late.

We're supposed to put them in the safe right away.

Right. I'm on my way to the teacher's office.

Let's go. - Okay, let's go.

Please. - All right.

Father, I told you about it, right?

Woonam University will come into the hands of Cheonmyung Foundation.

And it's me, your son's accomplishment.

An education foundation is a business too.

It should be run by someone competent.

Instead of a rat who digs around for others' secrets.

What? A rat?

A general manager...

has more work than you think.

Even more than a director.

So please work hard.

Brother.

Know your place.

Who do you think you are?

Father, please wait just a little longer.

I'll make sure you get to see...

Woonam University in Cheonmyung Foundation's organization chart...

during your life.

Father, please stay healthy

Gosh, why is that idiot so stuck-up?

What?

This is Lee Tae Seok.

Yes. Thank you.

I'll come to you right now.

Okay.

Yes!

A spy app?

Why would a high school student have a spy app on his phone?

That's why it's a jackpot.

Daily Weather.

At a glance, it looks like an ordinary weather app.

But if you install this app on two phones,

you can monitor and access the messages, photos,

and internet browsing history on one phone from the other.

In other words, this app can do both hacking and monitoring.

Monitoring? But monitor who?

Exactly. That's the part we want to know.

Because you disconnected the phones in the middle of the process,

all the data got damaged.

I barely managed to save this one photo.

That's why he kept asking me to return his phone.

Can you try to connect again?

No. That's too dangerous.

Anyway, we know one thing for sure.

That person has Jung Su Ah's profile pictures on his phone.

Lee Tae Seok. That makes sense.

But why would Yu Beom Jin want to monitor him?

What's their relation?

While Gi Hoon's phone surprisingly turned out to have nothing,

this gem just popped out from somewhere completely unexpected.

On Byung Ho's phone,

we found his messages with Lee Tae Seok, so that's not bad.

Won Suk. - Yes?

Which standing committees does Yu Yang Ki belong too?

Hold on a second.

Let me see.

Legislation and Judiciary Committee.

National Defense Committee. Culture, Sports, and Tourism Committee.

And Education Committee.

He is the chairman of Education Committee.

Then he could play an important role...

in Lee Tae Seok taking over Woonam University.

What if Yu Yang Ki, not Lee Do Jin,

is Speed Dial Zero?

He might be the one...

who has pictures of Su Ah on his phone.

No way.

We must recover the data from Yu Beom Jin's phone.

That will reveal who Yu Beom Jin...

has been monitoring.

Here it is. Yu Beom Jin.

Here.

What? You kept asking for it.

Beom Jin.

Why are you concentrating so hard?

You'll be the top student anyway.

By the way, are you okay?

What? What do you mean?

Have you found Ms. Jo's replacement?

Yes, my mom hired a new teacher.

Who?

Who else? Our new homeroom teacher.

Why don't you find another one?

He keeps digging into the past.

He's unreasonably curious.

You must feel uncomfortable yourself...

leaving your future in that suspicious person's hands.

I have no choice. It's Mom's decision.

Why did Mom have to choose the temp?

I'm sure he was chosen by Butler Lee, not your mom,

because the temp suits his purpose.

His purpose?

What's that?

Yu Yang Ki's son had that photo on his phone.

Congressman Yu Yang Ki's son?

How did you find that out?

I hacked a few suspicious kids' phones.

There were some opportunities during the exams.

Mu Hyeok.

That's not the point.

Yu Yang Ki is the chairman of Education Committee.