We'll continue learning... about the energy sources today.
As for the sources of energy, there are three major nutrients...
and two micronutrients.
The three main nutrients include carbohydrate, protein, and fat.
And two types of micronutrients are vitamins, minerals, and water.
These aren't directly used for energy,
but they're necessary to maintain our lives...
Why did you do that, Eun Ho?
Are you not scared of me?
I might go find you.
Thank you.
Dong Myung never bullied me.
So Dong Myung behaved that way...
just because you two are close?
Yes.
We're not friends.
I always got things from him.
How are we friends?
At the school I worked previously,
I had... a victim and a perpetrator of school violence in my class.
Will you keep your mouth shut?
Fine. Do as you want.
You won't believe me, will you?
You won't believe me no matter what I say.
I only listened to the victim...
and transferred the perpetrator to another class.
I didn't try to find out what actually happened...
to those kids.
I didn't want...
to make the same mistake again.
- Yes, Mr. Lee. - I will send you...
the date of the class when Eun Ho drew...
the angel in his notebook.
- Okay. - Ms. Cha.
Are you with Eun Ho now?
I am.
- I'll head there now... - Where are you now?
I'm still at school.
I'll go there, then.
Hello. I'm Kim Tae Hyung, Eun Ho's caregiver.
- Hello. I am... - You're his neighbor, right?
Yes.
And you're a detector of the SCS.
And...
you're Eun Ho's friend.
- Did Eun Ho's mom tell you? - No.
I heard it from Chairman Baek.
Oh, I heard he had it in his bag,
so I'm reading it for him. Have you read it too?
Is it okay to read it to a teenager like Eun Ho?
I'm sure he's already read it.
Right.
He's no longer a kid as he's 15.
- I'll get going. - Okay.
Take care.
He is still a kid.
- Sorry? - He's only 15.
Okay.
Yes. Go ahead.
Detective Cha had been here until a while ago.
She left the hospital to go see Eun Ho's teacher.
How is his condition?
He's half-unconscious, so I can't wake him up.
But he reacts to strong stimuli.
It won't take long, then.
- Keep your eye on him. - I will.
Ki Ho,
he prayed for a long time on his knees.
Whom would he have prayed for?
That kid saved my life.
You appeared out of nowhere and asked to help you hide.
And now you want to see him?
I put a too heavy burden on him.
I need to get it back.
You have something to get back from him?
Yes.
Why? You need to find Ki Ho?
Of course. He's our family.
Moreover,
I have something to get back from him.
Ki Ho,
won't I get in trouble by hiding you?
"Behold, I come quickly."
"My reward is with me,"
"and I will give to everyone..."
"according to what he has done."
The Lord is with me.
If you help me,
things will be straightened up,
and you'll be given a big reward.
Only you can save yourself.
Only after you save yourself first,
you need to ask just one thing from him.
Forgiveness.
You're here. What did you find?
The CCTV at the main gate captured him.
It's Jang Ki Ho.
It'd be impossible to find him outside.
Ki Ho knows this neighbor like the back of his hand.
Rather, you should ask... the townspeople about his whereabouts.
Is there anything that bothers you?
Cha Young Jin and Lee Sun Woo recently act together.
It's quite annoying.
Dong Myung recognized Choi Dae Hoon in the picture.
He said he's been watching Eun Ho and Min Sung as it'd seemed...
there'd been something going on between the two.
But Eun Ho didn't tell him no matter how many times he asked.
Then,
Min Sung and Chauffeur Choi harassed...
- Eun Ho together? - The one who harassed the other...
isn't Min Sung, but Eun Ho.
He said...
he'd just scare him.
But...
I don't know why Uncle Dae Hoon died.
Say it so that I can understand.
One of my classmates was badly hurt.
And...
- he threatened me. - He threatened you?
Why would he threaten you?
The test paper you got for me.
He saw it.
What's his name?
- Ko Eun Ho. - Ko Eun Ho?
That fatherless kid?
If Eun Ho was harassing Min Sung,
that gives Min Sung and Choi Dae Hoon...
a motive to harm Eun Ho.
But...
why did Choi Dae Hoon...
bring Eun Ho to the hotel?
Eun Ho being attacked and falling from the roof might not be related.
Why did you come all the way here...
to tell me all these?
If Min Sung was being bullied by Eun Ho,
why didn't he tell his parents or you?
Is Min Sung a student that would let Eun Ho bully him?
There must've been Min Sung's fault...
that only Eun Ho knew about.
So...
you want me to find that out, right?
You said you want to know what happened to Eun Ho.
I'll excuse myself.
Ms. Cha.
Are you asking me for help?
No.
I'm going to reveal the secret of Min Sung as a detective.
As a teacher,
you'll decide on your own which choice you will make.
(Fingerprint recognition system)
This guy tried to buy it,
and this guy tried to sell it.
Do I know them?
He's our regular, and he used to work for you.
- He worked for me? - Doo Seok.
Bring me a cold drink, will you?
- You... - Doo Seok.
- Yes. - You can go home now.
Yes, Doo Seok. You can go home now.
That's okay. I want to see the faces of these scumbags.
I'm getting thirsty.
- Hee Dong. Should we drink beer? - Yes?
- I'd love some beer. - White wine for me.
White wine it is.
I'm fine.
Let's eat.
Fine. Eat this one.
Thank you.
What is it?
It's delicious.
Slow down then.
- I can do it. - Wait.
I think I found it.
Here's your white wine.
- Thank you. - Beers for us.
And for you...
What's your plan?
I'm thinking.
Just let it slide. The police are after them.
It'll be troublesome if things go wrong.
And we should focus on finding Jang Ki Ho for now.
- Am I wrong? - Sea squirts don't have brains.
- What? - I mean,
they do have brains at first.
But when they're fully grown,
they find a safe place and eat their own brains.
That's gross.
Sun Ah,
I don't want to live as a sea squirt.
Sang Ho.
Choose just one if you have to. I'm tired.
Sure.
Shall we?
Which one will it be?
- Yes. - I think we found the trafficking.
- Did you pick up a signal? - Not yet.
- Report to the division of drugs. - Yes.
- Are you going somewhere? - Choi Dae Hoon's house.
- Why? - I have to see the room...
filled with Min Sung's stuff myself.
Dong Myung.
Let's go.
Thank you.
- Take Dong Myung home safely. - Yes.
Call me.
Detective, wait.
Mr. Lee.
I'm sorry about that day.
Dong Myung.
I didn't fall because you pushed me that day.
I just...
tripped myself.
You should go.
It was you...
who told the vice-principal to find out about Dong Myung,
- wasn't it? - Oh.
Is that something to get so serious about?
What?
I'm not even sure if we can trust everything he said.
Why did Eun Ho fall from that hotel...
on the day that he gave the money to Dong Myung?
Hee Seob.
Someone...
- took Eun Ho to the hotel. - Really?
That's a good thing for our school.
That culprit is...
- Ha Min Sung's driver. - What?
Are you sure about that?
Is Min Sung directly involved in it?
No.
It's because of the money Eun Ho picked at the hotel.
I see.
I'm relieved to hear that.
- Why? - If things go wrong with Min Sung,
our foundation's business will face a problem.
- What do you mean? - His parents are investing in it.
- Is that why you're relieved? - Sun Woo.
Founding a college is my father-in-law's will.
Don't take it too lightly.
There must've been Min Sung's fault...
that only Eun Ho knew about.
("Bird's Gift")
Gosh, it stinks.
Your mom will be home soon. Go downstairs.
You're hurt. Is it okay?
Yes, I'm okay. It's nothing.
No,
I meant the person who was up against you.
I broke three of his ribs.
Get up already.
You should sleep in your room comfortably...
instead of crouching on the floor like that.
This place is more comfortable than my room.
Was it...
more comfortable...
than your house?
(Student Records)
(Ko Eun Ho)
(Ha Min Sung)
(Class: 2-2, Name: Ko Eun Ho)
(Mid-term Exam, Second Semester of Second Year)
(Overall Rank: 56, Class Rank: 19)
(Math, English, Science)
Do you hold any grudges against the math teacher,
the English teacher, and me?
- Pardon? - If not, why didn't you...
fill out any subjective questions of those three subjects?
I know you're good at them all.
That's because...
I could see all the answers.
I don't understand what you mean.
I could see the answers even before reading the questions.
So I couldn't write them.
Is this a new type of defiance?
I won't do that next time.
He saw the answers.
(Name: Ha Min Sung)
(Overall Rank: 2, Class Rank: 1)
The flashlight wasn't on.
What's wrong with your leg?
Goodness, I guess I scared you.
Hi, kid.
It's okay.
Let's go. It's okay.
Yes.
So he took a secluded path on purpose.
Okay.
Who are you?
Who...
It's not a suicide.
He was murdered.
- A murder? - Yes.
- Choi Dae Hoon didn't kill himself. - On what grounds?
Choi Dae Hoon had nyctalopia.
He had an oddly large number of sensor lights at his home.
So you looked into it, and he turned out to have had nyctalopia?
You two were there first. How come you didn't know?
We were there in the morning. I would've known if it'd been evening.
I don't understand.
How is his nyctalopia proof of him being murdered?
(The death case in Hongeun-dong)
It's impossible for Choi Dae Hoon to drive at night with the lights off.
I'm sure there was someone else.
It's not impossible if the surrounding area is lit up.
After coming out of the hotel,
he drove around the darkest and secluded alleys...
instead of the fastest and brightest path to reach...
the neighborhood with the abandoned building.
So do we have a suspect?
For now, we're suspecting that one of the two involved... in the illegal dealing...
at the hotel bathroom is Choi Dae Hoon's accomplice.
I've been wondering this from earlier...
why Ms. Yoon is here with us.
I'm assisting Felony Crime Section One.
I guess your team works fine without you there.
Yes, it works fine.
My teammates are all veterans, and they're super competent.
- Superintendent, may I come in? - You're already in.
You should ask if you can come further in.
Ms. Cha,
I think it's time to give me back my teammate.
Since we're all here, I'll take this chance to say this.
Superintendent Han, I ask you...
for a temporary transfer of Ms. Yoon to our team until this case is... resolved.
Ms. Hong.
You can't make a sudden request without consulting us beforehand.
- I'll have to think about it... - What is the reason why you need...
Ja Young besides being short-handed?
Do I need anything else? I just need more men.
Then ask a different team. I can't help you.
Ms. Hong.
Ms. Yoon, I think you're facing the wrong way.
I'm not. I don't want to help. I want to do it.
I apologize for being rude.
Raise your head.
Ms. Yoon wants to take part herself... instead of just following the orders.
That's why I need her.
- I haven't decided yet, so... - Command and discipline!
I'm telling you that I haven't decided yet.
I'll do my best.
I haven't even given you order yet.
- I'm sorry. I'll do my best. - Why do you keep saying...
All right. Do your best.
- Is it cheesecake? - Thanks for the drinks.
(Chauffeur, Buyer? Choi Dae Hoon, Suicide)
(Accomplice?)
(Lee Young Sik: Seller Kevin Jung, 30,000 dollars, Drugs)
This is Senior Inspector Cha Young Jin...
from the SCS' Felony Crime Section One...
at Seoul Metropolitan Police Agency.
Not a problem.
I should come to you as you must be busy with work.
Of course, I didn't do anything that would make me...
visit the SCS,
but I'll use this as a chance to see how the SCS looks like.
- It'd be great. - Then for the time...
Yes, I'll see you then.
Lee Young Sik isn't answering his phone.
- Go find him at his home. - Okay.
What are you doing? Aren't you getting ready?
Am I going as well?
- Aren't you going with Ms. Cha? - Then she'd have said:
"Let's go."
- Let's go. - She's so transparent.
I don't know him.
Answer me.
I've seen these two at the hotel.
But it doesn't mean that I know them.
I did hear somewhere that he's renowned... in the foodservice industry.
And this one used to work at Millennium Hotel.
He's just someone I'd exchange nods when we ran into each other.
You'd know if you investigate,
but I have no connection with these people.
I guess I'll find out once I start investigating like you said.
Then can I go home now?
Yes.
The rest of the investigation and trial for trespassing...
and burglary will proceed without detention.
How did you come...
So Yeon,
let me explain...
It's not what you think. So Yeon,
let me explain.
Just listen to me.
So Yeon.
- So Yeon, please come over here! - Let go of me.
- Come over here.
- Please hear me out! - Let go of me!
- Please listen to me! - Let go!
- I'm telling you to let me go! - I did wrong!
You should stop and leave.
I'm not leaving.
Call the police if you want me to leave.
I'd like to learn how it feels... to get handcuffed thanks to you.
I did make a mistake...
but frankly speaking, this is all because of Eun Ho.
All the men I met...
after Eun Ho's dad passed away were trash.
But among them,
you're the worst.
Do you want me... to tell you why you pick only jerks?
It's because you can't stand it.
You always get irritated when you see someone...
who is even slightly better than you.
How can someone who feels inferior even to her son meet... a decent man?
Young man,
what grade are you in?
- I'm in the second year. - Is that right?
Then you must know a student called Eun Ho.
Yes.
Can you deliver my message to him?
- Who are you? - Me?
I'm...
You know that he saved someone's life, don't you?
I came here on that person's favor.
That person wants to properly repay Eun Ho.
Can you ask him to give a call on this number?
The thing is...
- that Eun Ho is... - Yes, what is it?
Never mind. I'll give him the message.
Please do so!
Mr. Yoon!
- Chairman Yoon! - Hello.
What did you just ask that student?
It's nothing.
- Ki Ho knows a student here. - Hold on.
- Jang Ki Ho? - Yes.
Are you still in touch with him?
Yes, I am.
Why don't you have a cup of tea in my office? Get in.
Here it is.
It's aromatic.
By the way, are you really still in touch with Jang Ki Ho?
Where is he now?
I can't tell you that.
He's hiding for a reason.
- A reason? - I can't tell you that either.
By the way, Sang Ho is also looking for him too.
Really?
Then he should know...
that you're still in touch with Ki Ho, right?
No.
Ki Ho begged me not to tell anyone.
So don't let Sang Ho know about this.
I won't be able to face Ki Ho.
- Sure. - But...
I'll deliver your message to him.
Yes.
Please tell him to call me as soon as possible.
- Got it. I'll tell him exactly. - Right.
You said Ki Ho knows one of my students.
Yes. It's Ko Eun Ho in Class 2-2.
What is the relationship between the two?
Well,
he said the kid saved his life.
I remember it now.
I haven't eaten anything except for the room service the night before.
I had to go to the bathroom twice because of diarrhea.
I apologize.
I had the wrong impression of the Millennium Hotel.
I totally stopped going there since that day.
Excuse me for a moment.
How did it go?
His phone is ringing inside, but he's not answering.
Call the fire station and...
- You... - Is that Detective Cha?
- Yes. - Give me the phone.
He's gone, Ms. Cha.
- What do you mean? - I went inside and checked.
His wallet and his phone are in there but him.
- Ms. Cha? - How did you get in?
Through the window. I'm sorry.
We'll talk back at the station.
He's gone.
- Yes, Detective Park. - Detective Cha.
I asked some of my connections,
and after Kevin Jung lost the money at the hotel,
he gave Lee Young Sik a serious beating.
When did he last see Lee Young Sik?
He saw him just yesterday. Why?
What?
Aren't we going to find a body at the end?
Yes.
What do you mean by a body?
Lee Young Sik disappeared without his wallet and his phone.
I think we should stop digging into this.
How could we stop digging when we smelled something fishy?
In this world, when you dig into a pile of manure,
sometimes you'll find a pile of poop that smells worse.
Did you have to make that analogy?
We could get something to eat. Do you play golf?
- Just a little bit. - Since you're here...
Where were you and what were you doing last night?
- Last night? - Don't answer it.
It's just a general question.
We don't know the intent behind her question.
- I'll answer. - No, you can't.
I will.
I came here because I didn't want to be suspected.
But...
you have to tell me why you're checking...
- what I did yesterday. - I will.
From five in the afternoon yesterday to this morning,
I was at the Millennium Hotel.
Didn't you say...
you stopped going there earlier?
Last night was my first visit since I stopped going there.
Should I tell you what I did... and whom I was with in detail?
Where are you?
We're getting information in Lee Young Sik's neighborhood.
Kevin Jung will either call him or go to his house.
Keep an eye on it.
The security cameras here are fake.
You could get around without getting caught if you want to.
He went out without his wallet and phone since early morning?
I don't feel good about this.
He could be dozing off in a nearby park,
or he has a close friend in the neighborhood.
(Kevin Jung)
Ms. Cha's hunch proved right.
She didn't have a hunch. She was expecting it.
Sure. Just answer the phone.
Hello?
So you're alive. Hey,
do you know the cops are looking for you?
I do.
Keep your mouth shut.
I heard that you've been whining at people...
that I might kill you, so I've been watching for a chance.
If you cause me trouble again, it'll be worse than your leg.
I mean it.
Answer me!
Who are you?
- We're the cops. - What?
You're a cop?
Wait.
(Kevin Jung)
The phone you have dialed is currently turned off.
Pause it.
We found an error in a question in the English exam.
The exam writer corrected the answer later,
and Min Sung's answer was the same as the uncorrected version.
But how can we be sure...
that the test paper was leaked?
I checked the head of the school administration...
going into the print room the day before the exam.
What are you going to do?
How do you want to handle it?
If you were me,
if you were the chairman of Shinsung Foundation,
would you report it or overlook it?
Hee Seob.
We should...
do what's right.
Can that also change according to your position?
If I were you,
and if it were someone else, not Min Sung,
I would have made the same choice as you.
Sun Woo.
Let me ask you a favor.
Let's not make a decision that we'll regret in the future...
just to take a load off.
Kevin Jung is neither at home nor at his office.
And his phone is off.
- So where are you now? - We're in front of his house.
Stay there for now.
- Is Lee Young Sik still missing? - Yes.
The person who was involved...
in voice phishing with him in the past is here.
He says he taught three middle school kids bullying... an elementary school student a lesson.
Not with his words, with his fists.
(Division of Child and Youth Office)
Do you keep in touch with Lee Young Sik these days?
No.
I heard about him, though.
He took a beating because he didn't pay someone back.
- And what else? - That's all I know.
He disappeared.
Have you heard anything about that?
I'm already busy with my own problems.
I heard Young Sik...
borrowed money because he kept being threatened.
He was wronged, but if he didn't pay back,
he'd be in serious trouble.
Let's go back to your story.
I arranged a job interview for you,
but you didn't show up and even caused a problem.
I dropped out of high school and went to a juvenile center.
The world wouldn't... give a chance to a man like me. The result was obvious.
I bet it was obvious.
I wouldn't use a man like you either.
You never try to earn others' trust.
You always whine...
about how people don't trust you, so how could I take you in?
It's absurd, but I've come to have a dream.
But it won't come true.
What is it?
Don't tell me it's being an idol singer.
A police officer.
How embarrassing.
Why do you want to become a police officer?
In my whole life,
I'd never met anyone whom I wanted to model myself after.
But as I frequented the police station,
I met a role model.
You can be a police officer...
as long as you're sincere.
But you need to change that temper of yours.
Make sure you become a homicide detective.
Beating up thieves suits you better than guiding people.
Should I become a police officer?
- Why? - So I can punish bad guys...
and help the weak like you do.
That isn't why I became a police officer.
Then why?
I was scared, but I couldn't avoid it.
To protect myself.
I became a detective to save myself.
But you saved me too.
(To the homeroom teacher of Ko Eun Ho)
(Good Conduct Award, Ko Eun Ho)
(Eun Ho's mother)
Hello, Mr. Lee.
You're here.
I got an award for good conduct.
You wouldn't know if I don't tell you.
Why did you bring this to me?
- You should give this to Eun Ho. - I just thought...
Eun Ho would've wanted to show it to you...
because you're the only one whom he told... about his award.
Then I'll give this to him.
(On a civilian in an emergency situation)
Why?
Is anything strange?
Do you know about the person whom Eun Ho saved?
No. Why do you ask?
The day he came to see me here,
he was in a school uniform, but I don't think he had his bag.
No, he wasn't carrying it.
Maybe it has something to do... with Eun Ho's missing bag.
I better inquire about his bag to the hospital.
Wait.
This man.
I know him.
Who is he?
He's from the church.
New Life Church?
You said Ki Ho knows one of my students.
Yes. It's Ko Eun Ho in Class 2-2.
He said that kid saved his life.
This is Tae Hyung.
The chairman of Shinsung Foundation...
just visited Eun Ho's ward.
I wanted to take this slow.
But...
I don't remember his name.
What's important is that...
he was once...
like brothers with Seo Sang Won.
As long as you're alive,
sorrow will always follow you around.
There isn't such a world where no one gets hurt.
So I chose...
a side of not getting hurt.
But I don't know...
if you will get a chance to choose.
Eun Ho.
Make sure you wake up.
Then I will...
come back to you.
This man was once like brothers with Seo Sang Won.
He might be Seo Sang Won's accomplice.
- I found the man Eun Ho saved. - Why would you find him?
- Ko Eun Ho. - Jang Ki Ho is missing?
Jang Ki Ho will have to get his stuff back from Eun Ho.
What if he exposes the secret?
- Min Sung, - He fell?
you made your driver cause the fall!
Didn't Eun Ho jump off the building because of you?
No.
Who are you chasing after?
Seo Sang Won's accomplice who seems to have murdered Soo Jung?
Or Choi Dae Hoon's accomplice who drove Eun Ho almost to death?
What if they're the same person?
I'll find out the story you had to keep it to yourself.
The story that even you don't know.