(All characters, places, incidents and organizations are fictional)
(Any resemblance to actual persons or events is purely coincidental)
(The secret area in the counseling room is filled with information)
- What's the matter? - There's blood on the ceiling.
What is this?
What floor is above this room?
(Counseling room)
It's the laboratory.
I don't want to go up.
I hated going up since it is a laboratory.
The scariest place in school is the laboratory.
There are many scary things in there.
I told myself we wouldn't be going to the lab after transferring
to this school.
The lab is always the scariest.
(Sad)
(She does not want to accept the reality)
We need to go to the lab?
Let's go.
(Oh no)
What is this? Is this from Mina?
Is Mina already dead?
The lights are on.
The lights at the lab are always turned off.
(The lab that is always dark)
However, it is bright today.
I'm certain that something is happening right now.
- Please. - She might be working now.
(Entering cautiously)
I think it is over there.
There's blood.
There's blood over there.
Oh no!
Blood...
We went to the lab
and found blood stains.
There was a pool of blood.
(There is a pool of blood in front of the door)
- What was that? - We are locked in?
We are.
Someone locked the door as soon as we entered.
It must be a criminal who is trying to flee the scene.
(Are we actually locked in?)
Open the door.
Oh? The door is locked.
(Are the windows locked too?)
(As expected, yes)
We can't open this?
(They are locked in the lab)
(Peeking)
(This still looks scary)
(What happened here?)
Can it open?
It does.
(The door is locked)
- Why? - I hate this.
(All of them panic)
The door is locked.
(Looking closely)
Hold on. This...
I think something happened here.
What is it?
This person was either banged against the window
or there was a bloody battle here.
There's someone over there!
- Where? - Between the trees.
- Who is that? - Hey!
We opened the window and looked outside.
A female student who is wearing a black hoodie
was running away.
It feels like
she locked us in the lab and ran away from school.
Who is that person in the black hoodie?
Is that actually Guk Jihee?
Or is that the main villain?
I think we should run after her.
But we are locked in right now.
- Someone is locked in here. - I think it's Mina.
I think Mina is inside. Oh no!
We need to find the key to save Mina.
Let's find the keys right now.
(Where is the key?)
She should not die.
Where did she leave the key?
(Frozen)
(Oh?)
- The ringtone! - Mina's ringtone!
Mina!
Are you okay, Mina?
- Mina! - Mina!
The reason I was certain that Mina is inside,
is because the ringtone we heard from the locker
and the music we heard at her home
were the same as the one we heard in the lab.
Mina is here.
(They desperately call her name)
(But nobody responds)
- Mina. - You haven't found the key?
I doubt she would leave the key here.
She might have since she was rushing to leave.
(I want to find the key but I am scared too)
(Where is the key?)
Jiyoon, turn this on.
We might find something else here.
(They find a way to save Mina using Munbanggu)
If we open Munbanggu again,
will we be able to find hints to the key?
We believe that the lab will look the same here.
The moment we turn on the laptop...
(In a rush)
(Someone is approaching the laboratory)
It's Mr. Suyeol.
I feel even more scared now.
What are you doing here?
(Oh?)
We were locked inside.
You were locked in? What do you mean by that?
(They told him what happened)
Calm down. Why are you still here and not home yet?
That is not important. There is blood...
- What? - There is blood over there.
- Blood? - Yes.
I will investigate that.
- So you should go down now. - No.
You should go down for now.
You should not walk in school until late at night.
Go down now.
This might be dangerous. So go home right now.
How can we leave since we saw blood?
I will decide to make a report or check what happened.
Just go down. Do you understand?
Go now.
If he was not aware of anything
and came to the lab, he would not have chased us away.
Isn't it more normal to ask someone to make a report?
'Go home right now. Just go home'.
That made me very suspicious.
He is weird.
I think Cha Suyeol is related to this case.
It's weird that he is still here at this hour.
(How is Cha Suyeol related to what happened today?)
(High School Mystery Club 3)
(It is now in the middle of winter)
(The third day in school for the mystery club)
(What will happen in Songhwa today?)
(Careful)
Hello.
It is snowing.
Our road to school is very romantic.
I am so excited.
How does it feel to go to school on a snowy day?
It has been a long...
This happens all the time but I am still excited.
(Jiyoon is the first to arrive today)
My precious laptop that belongs to Mina.
I stole it but I feel relieved.
Hello.
I feel so comfortable since I'm wearing pants today.
It is very warm here too.
The weather is just...
I think it's snowing too heavily.
Hello.
You're so pretty.
(A warm welcome by the pretty Jiyoon)
I wore gloves so that we can play in the snow.
Yes!
(They are ready to become children again)
Shall we build a snowman?
- I'd love that. - I think that will be fun.
I want to make a snowman.
(Another person is in the mood for 'Frozen' too)
I can't believe that I am in the snow dynasty.
Shall we go to Songhwa that flows with the energy of Samgyocheon?
(Sometimes she malfunctions)
Hi.
Isn't it great that it is snowing?
I love it.
(Found something)
Jiyoon.
You look like a parent today.
- What? - You look like a parent.
(Jiyoon looks like an adult today)
I don't have clothes.
I ended up wearing my mother's jacket
and now look like a mother!
I hate my mom!
My mom said since today is a holiday,
she rolled my hair tightly.
Why is my hair like this?
(BIBI arrives amidst the chaos)
(She arrives in all-white fashion)
BIBI, you dressed up prettily today.
I am regretting my decision to dress up today.
You look so tense now.
(Jaejae and BIBI are wearing the same shoes)
(Including Jiyoon)
Don't join us.
(BIBI doesn't give in just because someone looks cute)
But you know this, right?
Doyoun had to let go of her padded jacket because of us.
(We will give you a new jacket, so give us the old necklace)
Oh no.
She said her mother was very angry.
There are rumors that Doyoun burnt all of her clothes.
- Oh no. - She cut her hair too.
Is she going to be naked today?
Oh no. Poor Doyoun.
(That is when Doyoun appears)
Doyoun.
Looks like the rumors are true.
It's true that you burned all your clothes as you lost your Moncler?
Yes.
(Doyoun only has her uniform)
There were also rumors that you shaved your head.
This is not a wig, is it?
Don't touch it!
Sir, don't brake suddenly. This might fly away.
Oh no.
(New item: Moncler padded jacket. Drop by to inquire about it)
There's a lot of snow here.
(This whole town is covered in snow)
Into the unknown!
(Let's sing together)
(The school bus is our stage)
(Chorus)
I think we can shoo spirits away like this.
We would defeat them.
(They try to sound like Elsa)
We will get rid of all of them.
Do you remember what happened in school yesterday?
The laboratory.
Yes. Our lab.
(Scary memory from yesterday)
The person who was locked up...
(The one locked up...)
(Is it Mina?)
Mr. Suyeol told us to leave in a scary manner.
Yes.
Something is wrong with him.
I think he is the devil.
Why did he tell us to leave?
I know, right?
I think we won't be able to find anything at the lab now.
- I bet it is clean now. - As if nothing happened?
But we saw it.
But if Cha Suyeol is one of the people
who was involved in the incident,
would he go back to the scene as if nothing happened?
Was he being used too?
Whose side is he on?
(They can't tell who Mr. Suyeol is)
Based on the diary we saw, our first day of school
was the day Mina was working part-time.
Mina started working from 7PM.
I think Mina is always in pain every time she works.
Mina was working at 7PM.
Looks like she is covered in blood when she works.
I think the blood we saw yesterday is related to that.
(Is the pool of blood in the lab related to her part-time job?)
Actually, a lab can also turn into
an operation theater.
The lab?
(Grimacing)
(What happened in the lab?)
Is it a human experiment?
It's weird that it happened in the lab.
(They are certain that it is no ordinary part-time job)
- I think it's a human experiment. - I think it's a human experiment.
It's a human experiment!
(Screaming)
This sounds fun.
(Doyoun's sanity gets burnt with her clothes)
You're having a tough time?
(Nodding)
But listen.
We had a suicide case in school.
There is also a weird gambling site in school too
that is connected to a weird part-time job.
The victim of this situation is Mina.
Does it mean that this actually happened in the past too?
Do they send people who can't pay there? It's a route?
Doesn't it feel that way?
The students who passed away were all model students.
What caused them to suffer?
I don't think it is related to studying.
Did they have financial issues as well?
(What is the main cause of the case from 20 years ago repeating?)
What is wrong with this school?
This is today's mission card.
(Time to get today's mission card)
'Notice of the day.
Today is November 21 and is a discretionary school holiday.'
The time has come.
Why? What is it?
'Investigate Bi-Bi parallel universe theory'.
Doyoun, you remember that
this involves you too, right?
(The curse has yet to end)
(They have another mission today)
(They have a meeting with Youdon'tknowme)
We tried to persuade her using Mina's brother but failed.
She said she'd tell us tomorrow.
That brat.
I think she is Shinhee as she is worried about her extra class.
She does attend many academies.
Shinhee has the habit of
saying she has an extra class when she has to leave.
But people who do that actually don't go to class.
(They chattered away and arrive at school)
There won't be teachers in school today.
So let's search the school.
They will get it today.
Let's take a picture.
Okay, Jiyoon.
(Coming close together)
(WeWillConquerSchool MysteryClub)
- Let's go. - Let's go.
Let's go.
- Our school is pretty in snow. - I agree.
(Our school has turned white within one night)
(The green pines and campus that they walk in daily)
(have turned white)
Do you remember the first time it snowed?
Yes.
- That's the day Inhye died. - Yes, that's right.
(It seems like the snow will cover all blood stains)
(Songhwa feels creepy. What awaits them?)
Do you think there will be teachers here today?
I'm sure they have duties too.
Key!
I think Key will be here.
(Key a.k.a Jongdae is here as a public service worker)
But he has to be absent
for us to steal the key to the record library, right?
(They only think of stealing)
Doyoun, you can distract him.
Okay. I will try to be someone who distracts him.
Be careful. It's slippery.
Okay.
I'm cold.
Hello, Mr. Sanmun.
Why are you here? Today is a holiday.
Are you here to study?
We would like to self-study at our clubroom.
Are you preparing for grade 12?
- Yes. - It is all for our school.
Doyoun, you are committed to studying.
Today is a holiday but you are in your uniform.
Perfect. Follow me for a moment.
Are you the only one in school today?
(Even Key is away today)
Mr. Suyeol is on night-duty. So he will come soon.
Mr. Suyeol will be coming as he is on night duty.
I have a bad feeling.
Did you go to Mina's place?
Yes, we did.
We met and spoke with her mother.
However, she has no idea where Mina is at either.
We didn't get to meet her.
- You didn't? - No.
Where is she?
Come here.
I'm glad you're here.
Do you know how to make photocopies?
(Why are they doing photocopies suddenly?)
This is our newsletter.
Please make 80 copies.
(80 copies?)
Please sort these according to class and put them on that table.
- I see. - Sorry?
Please help me, okay?
I have so much work to do. I'm glad you're here. Thank you.
Since we're doing this, can we eat snacks you have here?
We don't have any snacks.
(Confidently asking for snacks meant for teachers)
Can we drink instant coffee?
(Instant coffee?)
We ran out of coffee
but you can have tea.
Have some tea.
(They have to work for tea)
We have to place the paper facing upwards.
I haven't done this in ages.
(Someone suddenly enters the teachers' office)
Then, we have to press the 'copy' button.
Ms. Yujeong. You're not on duty but you're here today.
I have some work to do.
(Emergency)
It's Ms. Kim Yujeong.
Ms. Yujeong, can you get hold of Mr. Suyeol?
He's on duty with me but I can't get hold of him.
You should wait a bit longer.
Is he sick?
It's weird he isn't here.
(Eyes on her)
Hello.
(Cold)
She didn't even greet us back.
(Ms. Kim Yujeong is cold)
(They are bothered)
Ms. Yujeong.
She doesn't look like a nice person.
She looks very strict.
(Talking bad in front of the teacher)
(Rummaging)
You're good.
You look like an office worker.
(What is that?)
(All eyes on her for a moment)
(Quietly moving beside her)
80 copies...
It takes a long time to make 80 copies.
(Peeking)
(Very curious)
Ms. Yujeong was looking at something intently.
I took a peek and there was a picture.
I couldn't see the name though.
(Getting closer)
(Stop right away)
What are you doing?
(Coming up with weird excuses)
I couldn't go close as I'm a coward.
They continue to look at it and even went closer.
(Friends she is proud of for going closer confidently)
I saw Yoon Semi.
Lee Seulbi too.
You saw Seulbi's name too?
(Why are their names in Ms. Yujeong's document?)
I was shocked.
Why does she have Seulbi's student record?
Yoon Semi and Lee Seulbi.
This proves that something ties both of them together.
We will be able to find important clues in the teachers' office.
This is not working at all.
(Being mindful)
When will we make 80 copies?
(Shall we read the newsletter?)
(Notice on prevention of theft and burglary)
If you have expensive items like necklace, ring and laptop...
If you have expensive items like necklaces, rings and laptops...
(Touching)
Wait. Hold on. We stole the laptop.
(The thieves feel guilty)
I think we will be handing these to everyone tomorrow.
(We can stop stealing from tomorrow onwards)
(She doesn't care about what they do)
We made 20 copies but I only have 12 copies with me.
There are 8 copies here.
(Really?)
Jiyoon, this is a machine.
Jiyoon does not trust machines.
(Jiyoon is full of suspicions)
(The is the icon of being meticulous / Distrust)
This is for Class 2-1. Count if it's enough.
Okay.
(She believes neither people nor machine)
(Working hard)
- Amazing. - I am the vice president.
Do you have 20?
There's 17.
(Jiyoon is the president)
(At last, they only need another 5 copies)
We are finally done.
At last, we are done.
I think we have stacks of 20 copies now.
(They are done with the photocopy machine)
(Neat)
(They are done dividing and arranging the stack of papers)
(The notices have been arranged by crazy, no President, Jiyoon)
We are done.
You can go study then.
Thank you.
(They leave the result that they are proud of behind)
(Moving discreetly)
(One pack of snacks)
I was wondering what bag you were taking, Jiyoon.
(This is how thieves are)
(They stop in front of the notice board)
Our final exams are coming soon.
Blooming Camp.
Blooming Camp?
(The camp which Mina would like to attend)
(The clue inside Mina's locker)
Songhwa Blooming Camp?
(Application form to Blooming Camp)
(Something is suspicious)
(They are very polite)
Blooming Camp.
(The snowflakes are getting bigger)
(A snow landscape that leaves them in awe)
It is snowing.
This is so nice.
Why is it dark here?
(The corridor is dark as today is a holiday)
(They turn on the lights)
Let's bring this on.
Let's check in case.
(She just brings it in)
(As expected from BIBI)
- I think something... - I love this!
Nice.
We are home.
(Their hearts feel at home)
(They check their mystery box right away)
(Let's see)
Look at this.
We found this in Mina's locker.
Application form to Blooming Camp.
Blooming Camp is held for 5 days.
(The Young Beauty social contribution program)
(The Young Beauty is beauty and health camp for selected students)
Beauty and health. Human experiment!
Since she said that she wanted to go
it means she might change how she looks? Like get prettier?
Like in 'Let Me In'?
(Why does Mina have the form to go to this camp?)
(They have collected many clues)
Let's enter Munbanggu again
and organize the cases that took place there too.
- Okay. - Got it.
(They open Mina's laptop)
How do we turn on the hotspot again?
(While the human connector connects it)
We don't have a snack box, do we?
(We are hungry. Where is our snack box?)
(Rummaging)
Doyoun.
(Touched)
My mom made me gimbap since I said I'm going to study.
Is this a witch gimbap?
Is your mother a witch?
She is a witch?
(She cannot let them starve)
(She takes a big bite)
(Tasty)
Does it work?
(It is now connected to Wi-Fi)
(Enter the password)
(They are now in Munbanggu)
This is cute. They did a good job at creating this.
The one who made this will get a good job.
Let's go.
The admin is here.
(They found Ubangi's admin)
- Who is it? - What?
Who are you?
The admin just sent this to Mina, right?
Before this, there were only conversations between Mina
and Youdontknowme or Guccilover.
But then, we found her conversation with the admin.
That was when we saw her financial statement.
What is this? 'Notice of cooking repayment date'.
'Notice on overdue interest'.
The principal value is $10,000.
- The daily interest is $1,500? - They take that much?
(Shocking financial statement)
She told me to come to the lab at 7 and a bad thing happened there.
This is what happened yesterday.
(They saw a pool of blood and heard Mina's ringtone in the lab)
Mina must have gone there after receiving this message.
It happened at 7PM too.
The admin is the culprit.
But who is the admin?
(They need to find out who the admin is)
Let's read from the first message.
'Notice on payment date'.
(The first notice was sent on November 6)
I will pay soon.
'Why do you sound so rigid?
You sound different.'
I guess they were close.
'Something happened during my second-hand item transaction.
I will definitely pay you back by tomorrow.
Please do not tell my mom.'
(Due to second-hand transaction fraud)
(Mina was summoned by the police in October)
'I will do my best to get your money. Please let it slide once.
This is very tough on me now.'
'If you do not pay by 7PM today,
I will proceed as per the contract.'
What is in the contract?
Didn't we take a picture of Mina's promissory note?
(There are promissory notes in the secret room)
'If there is more than 3 days delay, parents will be notified.'
Guardians will be notified?
She's scared that her mom will find out about it.
'I agree that my participation in games in Munbanggu is restricted'.
What is 'looking for part-timers' about?
'I can do it. I can start right away.'
Then, she was selected.
She was told to come to school by 7
to which she agreed. She went on Saturday.
(She was chosen on November 10 and she started work on 11)
November 13 is the day we got transferred here.
'You are Gucci, aren't you?
I asked you in class too.
Can I do the part-time job I did before too?'
Yes. We heard that on our first day here.
(The first day in school)
Can I do that part-time job again?
- What job? - The one you introduced.
Part-time? Why would I introduce a job to you?
(Is Jihee the admin for Munbanggu?)
But it might not be her.
She didn't know what job it was.
But she asked why does this person sound unfamiliar.
Mina thinks the admin is Jihee
but it might be someone else.
Yes. the one who said that she knows who the admin is
is Youdontknowme.
We decided to meet her at 4PM today.
'Today at 7PM at the school...'
That was when we saw Mina's ID that was stained with blood.
(The night of their first day in school)
There is something there.
- It's a student ID. - Hwang Mina.
(Mina's student ID is stained with blood)
(November 13. First day in school and Mina's part-time job)
'Can I do it again?'
She asks if she can do the part-time job again.
'When can I work again?'
'I think I am in trouble because of the archery team's case'.
She lost money from betting.
Is it because Hong Ai won?
Many students lost lots of money because of that.
Mina must've felt so scared.
(Mina lost a lot of money due to the archery team terror case)
We saw that she was asking for a part-time job several times.
Is the reason they use
one's weakness to threaten them
so that they can get people to do part-time jobs?
(Final message from admin: Come to lab at 7PM today)
(She was asked to go to the lab on November 19)
Anyway, she searched for a part-time job to get money.
It's true that she was in pain and bleeding on those days.
So the first time we saw her on November 13,
she was bleeding and walking towards the abandoned building.
The next Monday, she was bleeding
and we heard her phone's ringtone in the lab.
(They saw a pool of blood and heard Mina's phone's ringtone)
I think we have to solve this as soon as possible.
What is today's mission?
Unravel the Bi-Bi parallel universe theory.
Jaejae, go to the metaverse and check on the notices.
Things happened there, right?
Can you please read them out for me?
Okay?
(She checks the notice board)
March 2, 2022. Munbanggu was established.
Gym was opened in May.
So was the counselling room.
Archery team tryouts forecast game started in June.
Were there any days when the site was checked?
What kind of check? What do you need?
'Notice of Munbanggu system check.'
October 1.
The site was opened again on October 8.
The site was checked for a week.
(The site was closed from October 1st to 7th, after it was opened)
- New space opening notice. - Record room.
(Record room is opening today)
It means there were not many events for the past year.
(Munbanggu was peaceful for the past year)
Let's go to the gym
and check on the dates of the tryouts
as well as search for part-timers. Tell me the dates for those.
'Notice on delayed result announcement for tryouts)
(On November 13, the result was delayed due to the terror case)
(The people involved are Guccilover and Tak Sara?)
Special action was taken on the 13th.
Coincidentally, Mina had to do her part-time job that day too.
However, we don't know where she went at 7PM.
It was not mentioned. She was just told to go to school.
She was bleeding on those days.
We found blood stains on that day.
Are you sure it was recorded as a part-time job?
It was just 'go to the lab at 7PM'.
(Mina received a text although she didn't ask for a job)
(November 11: You're chosen for the job. Come to school at 7)
(November 13. Part-time job. Come to school at 7 today)
(November 20: Unknown. Come to the lab at 7 today)
She did not have any part-time job that way?
(Hwang Mina part-time job?)
(They read the chat messages again)
Wait. She paid everything. The total is $7,000.
She paid $7,000 all at once?
She pays a debt of $7,000 with one part-time job?
The pay for the job is $7,000?
($5,000 was 4 days overdue so it became $7,000)
(She cleared her debt of $7,000 with one part-time job)
What do you have to do to get $7,000?
Yes. That's why it's dangerous.
This means she transferred $7,000, right?
Or is it a drug trial?
She got some drug tested on her?
Since this is a beauty camp,
it might be related to fat or skin.
Is the drug created during the camp tested on part-timers?
Or it's a drug that does not make sense.
As an example, they test eternal life or anti-aging drugs.
That's possible.
We have organized everything we have so far.
To understand all these better,
I think we need to understand the metaverse better.
Let's organize the things we have to do today.
This is the bigger issue.
Unravel the parallel theory.
We need to know the relation between metaverse and this theory.
Somehow...
The record room will be opening today, right?
We can find old school documents in that room.
If we bring this metaverse with us to the room,
I think we'll find clues related to the parallel universe theory.
(They will get new clues!)
To do that, we need to know who the admin is.
So it's important for us to meet Youdontknowme.
What must we say when we meet her?
'Why are you here instead of Mina?'
Why don't we say that we are also
gambling on metaverse as introduced by Mina?
And I have to do a part-time job soon.
Youdontknowme might not know about the job.
Or shall we just test the waters?
No. I think almost everybody is playing this game.
However, there are no records of others doing a part-time job.
Only those who have to do it are aware of it.
- Only they know about it. - They don't share information.
We should not reveal what we know yet.
We don't know what she will tell the others.
We can just say that Mina wanted us to find out who he is.
If that doesn't work...
Yes, let's try to lure her to give us information.
If necessary,
we can use Mina's brother.
We can use Mina's brother.
(Use whose brother?)
(Cute)
Is he single?
Mina's brother? He is single.
How do you know that?
- You asked him out? - No, I did not.
Don't tell me...
What are you doing?
(Nothing is more fun than teasing Mina)
It will be bad if things go that way.
(Dangerous world)
(She almost lost her mind)
Let's get the key to open it.
Okay. Let's do that.
(They open the case box)
(There is something inside)
- What is that? - Something is torn in here.
'Please put everything back in its place)
There must be a reason when someone places something
inside the mystery case box.
'Please put everything back in its place'.
Isn't this from some poster?
Notice board? Teachers' office?
A place people hang posters. Maybe the corridor?
Or classroom?
(Classroom?)
(Counseling room?)
(Teachers' office)
What places need to be organized?
Lab or library.
A place where we have to use something there.
Shall we go to the lab?
(She is already scared)
(Time to look inside the dark room as they failed to do so yesterday)
She might still be locked there.
Let's go.
(To find traces from yesterday)
(They start to move quickly)
I don't want to go there.
(The lab was stained with blood last night)
(Did someone lock the lab again?)
The door is open.
(Taking a deep breath)
Hold your breath!
(The lab is so quiet)
(as if nothing happened last night)
It's morning but why do I still feel scared?
(Oh?)
'Rules to use the laboratory'.
- That is where it is from. - Right there.
Yes. I knew it was something like this.
(The paper found in their box fits this paper perfectly)
Who would tear this and put it inside our mystery case box?
I think it's a sign for us to come to the lab.
(Who is it?)
(Why?)
(Why must we come to the lab?)
The blood has been wiped and everything is clean.
- Really? - Yes.
(All traces from yesterday are missing)
It's like someone was clearing the evidence. There's no blood.
Everything has been arranged back in its place.
As expected, all evidence has disappeared.
- Really? - What? When?
The dark room is not locked.
- Shall we go in? - Okay.
- It is unlocked? - Yes.
(Screaming)
(They can see the dark interior when the put the curtain aside)
(All tools have been arranged neatly)
(Dark room)
This looks like a trap.
I'm scared.
I will watch out for anyone.
(They are reminded of their PTSD of being locked in)
(Peeking)
(While BIBI stays on alert, they start rummaging through the place)
Blood was dropping downstairs from here.
(Did blood drop through the ceiling from the pool of blood?)
I think there's a gap here.
It dripped from the tiles?
(Looks like it seeped between the tiles)
(What happened here?)
But you know, right here,
there was blood.
We saw traces that someone was dragged here.
There was blood on the window.
I think she was dragged in from the window.
This is where it began.
She might have been hit here and was dragged into the room.
Right.
- Try to think about it. - Why?
Perhaps it wasn't Mina who was murdered.
She might have brought someone to the lab
and made that person stand here.
(Hitting)
(Dragging)
That might be the reason Mina was in this room too.
So the part-time job might mean she has to hurt others
instead of her hurting herself?
(Mina might be the assailant and not the victim)
It means someone does not want to get his or her hands dirty.
It might be Mina who we saw.
The reason it might be Mina is because
we searched Mina's seat.
There was a black hoodie on her chair that day.
(The culprit was wearing a black hoodie last night)
When she heard us coming,
she shut the door and hid.
Then she ran away.
That person was Hwang Mina?
(Mina was the one in the black hoodie?)
Did she leave her phone here?
She might have left evidence behind.
Doesn't it mean that the teacher who came here
might have found the evidence?
Mr. Cha Suyeol.
Which is the truth?
I don't know.
(Is Mina the victim or assailant?)
What was Mr. Suyeol doing here?
Cleaning up the place.
Why were we asked to come here?
Why did that person want us to come here?
Why was this placed in our mystery case box?
Rules to use the dark room.
'Cover the room with the curtains well
to prevent any sunlight from entering'.
'Please wear protection when you are using chemicals in the room.'
Luminol reaction?
Let's try this.
There is equipment we can use too.
We will be able to find blood stains.
(Luminol? Blood stain?)
This is that!
This is used at criminal sites.
Luminol reaction.
A luminol reaction is a test to detect blood.
Yes, I did that before.
One of my favorite programs is
'Until the Day We Find the End'.
This situation appears often in that show.
The bottle is labeled 'luminol'.
We see this kind of scene in dramas.
They would do this
and spray everywhere.
Then they will find the blood stains.
If we use luminol in the dark room,
we think that we will be able to find blood stains or clues.
That is when we quickly put on our gloves and goggles.
We need to make sure the surroundings are dark.
We need to stand as far as possible from the spray.
Everybody, let's enter the dark room.
We can see the reaction within 2 to 3 seconds.
Okay. Everybody.
I'll close the door.
Let's spray it for now.
(They have prepared the dark room)
Around this area.
(They start by spraying the door)
I can see something glowing here.
This one is glowing.
(Any fluorescent reaction means there is blood)
(The area close to the door is shining)
Here.
I can see it.
I think these are stains from yesterday.
There's a lot here.
Something must have happened here.
If we look from a distance, we can see it is covered in blood.
This whole area is covered in blood too.
There's a lot of blood here.
There's so much blood that I think
that person must have died.
Girls.
There's blood here too?
(They found blood everywhere. Not just on the floor)
We wanted to just check the walls.
We won't find any, right?
(Oh?)
- Girls. - Where?
- Girls! - What is the matter?
We saw it clearly when we sprayed the wall.
How far does it go?
'Lee Seulbi'!
Lee Seulbi.
- 'Lee Seulbi'. - It says 'Lee Seulbi'.
(One of the characters in the Bi-Bi parallel universe theory)
(They keep on seeing these names as they dig into this case)
Why is a dead person's name here?
Why is Lee Seulbi's name written on the wall?
She passed away last year.
Or is she still alive?
What does this mean? 'Lee Seulbi'?
We almost finished up the luminol.
We sprayed everywhere.
I saw this on 'C.S.I.' and have always wanted to try it.
I feel so amazing now.
(The best of the best)
(She feels proud of herself)
First off...
(They return all items back to where they belong)
The information we found in the lab
says that the drops here are related to Lee Seulbi.
But she died last year.
Did she not die?
When someone's name is written at the crime scene,
there's high probability that it is the culprit's name.
Does it mean that Seulbi is alive?
I think someone keeps on asking for help from us.
(Is someone asking for help from the mystery club?)
You.
(Someone calls for them from the end of the corridor)
- Aren't you Ki Shinhee? - Ki Sin!
(Shinhee is standing in the middle of the corridor)
I didn't recognize you because you're not in uniform.
We saw her in a bright place and she looks cute.
(Cute)
Her first impression was scary.
It's because she was covered in something dark.
I thought that I did not want to know her better.
But she is actually cute.
I knew that you would come.
(Checking out her clothes)
Why are you in school?
I left my workbook at the self-study room.
You are more passionate about studying than expected.
The thing that you told us about.
The way to get rid of the curse.
Yes.
(Shinhee thought them about it during their first meet)
I know the way to stop a curse.
(This is the method!)
It didn't work.
What should I do? I am 2118.
(Very worried)
Were you lying?
Why would I lie?
Why didn't the candle go out?
How did you do it?
You sure you did it together?
Yes, we did.
Then we turned around one by one.
(Full of complaints)
You said, 'Congratulations on graduating' thrice too?
You didn't say 'Happy birthday' instead, did you?
No.
(Silent)
Are we supposed to say 'Happy birthday'?
No. 'Congratulations on your graduation'.
(They almost said that, though)
(They did recite the chant too)
Congratulations on your graduation.
What about the candle?
Candle?
Where did you put it?
We put it in the middle.
It means you saw the whirlpool shaped drawing.
(What is that?)
The one on the seat?
Yes.
What is that?
It's the symbol we saw at the bottom of the seat.
Yes. We saw that.
That symbol suddenly appeared last fall
It suddenly appeared?
After Seulbi's death?
I am still investigating it too.
(Shinhee's recent research topic, whirlpool symbol)
You don't have any extra classes today?
What is the time now?
It is 2:30PM.
(It is 2:30. Don't tell me...)
I am late for class again.
It is almost 3PM.
I have to go.
What kind of academy do you attend?
(Shinhee leaves in a hurry again)
If Shinhee has left,
it means she is not Youdontknowme.
(Who is Youdontknowme then?)
Shall we go?
Where to?
I'm not sure.
(Ms. Duck just wants to go somewhere without any destination)
Shall we go to the recording room?
Okay.
Is it open now?
(Is the recording room open?)
(When they checked Munbanggu a moment earlier)
(They visited the recording room)
(Recording room is still being remodeled. It is not open yet)
It is open. No, it is not.
I think it is locked.
(The door is locked)
(The notice has changed)
'Make an inquiry if visiting outside of opening hours'.
Shall we go in when it is open?
When do you want to go there?
(The thieves start planning in front of the room)
(They will go there when it is open in the Munbanggu)
Something Shinhee said actually bothers me.
What is it?
She talked about the whirlpool.
Maybe we did not look at it properly.
- Let's go, help me with my curse. - But there was
a whirlpool.
Yes. Let's go.
We might not have done it well as we were scared.
I don't even remember how I felt when I saw it.
So we went back to turn the chair over again.
Something that wasn't there appeared.
Shinhee must have mentioned it
because it was weird, right?
Flip the chair over.
This is my spot.
This symbol is called the whirlpool, right?
We didn't know it because we saw it at night.
This does look exactly like a whirlpool.
I didn't think much about it before
but now I think it is weird.
What does this symbol mean?
A cochlea?
The cleaner's?
Falling into something?
Whirlpool.
Or is it about looking at something like this?
(It is like staring at something from above?)
Pipes look circular when we look at them from the top.
But why is the line like this only at this part?
(There is a thick line only at the start)
It looks like a mosquito repellent.
I know, right?
Doesn't this remind you of something?
A target.
Archery?
(That sounds plausible)
To call this a mark... Something feels off.
(The line never ends but the target is circular)
Can I take a look at the necklace?
Yes, you can.
They look very different.
Extremely different.
We might find more of this at other chairs.
Let's check other chairs.
(Do other chairs have a whirlpool symbol as well?)
Mina's spot.
Whirlpool? What does it mean?
There are none here.
So that is the only one in this class, right?
Yes.
She said that this suddenly appeared.
Nobody drew it. It just appeared.
She said it was from last fall, right?
Yes.
Why did it appear out of the blue?
Fall... What happened last fall?
Seulbi passed away last fall.
Perhaps this has something to do with Seulbi.
Did it appear before or after her death?
Since it's fall, it might be after.
Why did this appear after her death?
Does it mean that Seulbi is actually alive?
That is possible.
Is that a sign that she is not dead yet?
Maybe it's a signal that she is being locked up?
That's possible.
But why must it be a whirlpool?
(Is she locked up at a place related to a whirlpool?)
Is she in school?
Archery team?
Gym?
Besides the archery team...
Or is it the archery team's old dormitory?
Shall we go there?
She has been locked up there for all this time?
We were told that she committed suicide.
Or did she leave this symbol before she died?
Is this a dying message left by Seulbi?
She knew that she was going to die
and wanted to leave a message?
(Is this a will or dying message?)
'This is unfair. This is how I died'?
Hypnosis.
Did she fall to her death because of hypnosis?
(Is her dying message saying that she died because of hypnosis?)
Did someone make her commit suicide by using hypnosis?
(They become more suspicious as there is nothing certain)
Shall we ask Producer Yong Seungnam?
Did you find something out?
Shall we go somewhere else?
(There might be other places that have this symbol)
Maybe there is a place or items that the whirlpool points to.
Perhaps there is some message left there.
Where shall we go? Old dormitory? Gym?
(Places to search: Abandoned dormitory and gym)
(The abandoned dormitory is locked)
(The gym has archery targets)
Let's go.
(The gym is locked)
The counseling room...
Let's go to places that we have yet to go to.
Shall we go in again?
(They found the secret area in the counseling room last night)
What place is this?
(Will they find a whirlpool symbol in here?)
It is locked. That room has disappeared.
(The path got locked within one night?)
Someone did something.
Nobody should enter that area but we did.
It's because we are ransacking the whole school.
(The secret area is locked)
(They have searched the third floor of the main building)
Shall we go to Class 2-1 and open the metaverse?
Yes.
(Staring)
Initially,
when I thought of what has a symbol that goes like a whirlpool,
I thought of a hydrant.
It has a red light.
The light is circular too.
(She seems to be mesmerized by the light)
After I told Doyoun about it,
she went, 'Yes!'.
All I could think of is gopchang.
In my mind, a hydrant hose
is rolled round and around just like gopchang.
Let's check it out.
Is the hose actually rolled?
Doesn't it look like this?
I think it looks like a gopchang.
(Is the hose rolled up like gopchang?)
There's number 5 written on it.
This is not rolled.
It was not rolled.
It was just like this.
Hold on.
(The mystery club members walk around to find gopchang)
Every level has one.
Where are they?
(Is the hydrant on the first floor rolled up?)
(There is no gopchang here either)
This does not look like gopchang, does it?
It has to be rolled up like this.
I think....
(They found something)
Behind the hose...
There was a diary.
(Fire hydrant on the first floor)
(At the manual diagram)
(There is a symbol that looks like a whirlpool)
(Inside the fire hydrant)
(They found a diary)
(Flapping away)
Let's go.
Where did you go, Doyoun?
We found this.
(They found a diary while searching for gopchang)
(They open the diary)
Who is this?
There is someone's picture inside.
Is this Seulbi?
Who is this?
Isn't this Seulbi?
(Who knows how Seulbi looks?)
I saw Seulbi's face from the student record.
(Is this her?)
I think she looks like this. She has long straight hair.
(The picture of Seulbi is the same as the picture in the diary)
This is Lee Seulbi.
Yes, this is her.
(On the last page of the diary)
(is the name of the diary's owner)
(Bi-Bi left a diary)
What is written there?
(On the first page)
'Upload mini game open notice.'
(There are detailed schedule of her duties at Munbanggu)
She is the admin.
She is the administrator.
(Seulbi is the administrator?)
The winning rate is controlled to be at ten percent.
(She doesn't just manage but controls winning probability too)
'Upload notice on the chosen ones for April Fools' Day'.
'Meet teacher'?
(Even in her schedule for April)
Looks like she meets a teacher at the end of every month.
This...
This is the same as Guccilover's diary.
Her diary has this kind of content as well.
Lee Seulbi's diary
is similar to the diary we found at Guccilover's room.
Their appointment with the teacher is written in red
and they also have notes about events and notices.
Is this diary used by administrators?
Does it mean that it is being managed by Seulbi?
Let's see what happened in the fall.
When did she die in September? September 30?
What happened before her death?
She died on the day she met the teacher.
That was her final activity.
Did the teacher kill her?
Let's say Seulbi is dead.
Why did that teacher murder someone doing a good job?
Is it because she was not as useful as before?
Or she revealed some secret.
Tell me her Instagram ID.
(They start to find for extra hints in Seulbi's social media)
seulrain.
There are two underscores.
Lee Seulbi.
(It actually exists?)
It is a private account.
What is connected to this?
Rolling paper?
'To: Myself'.
We went into her social media account
and saw online post-its that she uploaded.
2022.
(They check the post-its)
(And they found Seulbi's secret diary)
March 1 2022.
'Another year has begun at the orphanage.
I thought that this would be a boring day as before
but it is different this year.
It is because my guardian has come.
That teacher has become my guardian from this year.
I do not know that much but that teacher seems amazing.'
Is it Mr. Cha Suyeol?
Hurry up and go to the bottom. I'm feeling dizzy.
February 24 2022.
'I have transferred to my teacher's alma mater'.
(Alma mater?)
'I decided to hide the fact that I am from an orphanage.
The teacher is being nice so that I do not feel uncomfortable.'
So the teacher was a student here?
Wait. Isn't the teacher the one who teaches culture?
Culture? Ms. Yujeong?
Did she look at the student record for organizing reasons?
So now Ms. Yujeong
has Seulbi's record too.
Mina fainted and was taken
to the hospital while she was with Ms. Yujeong.
The one who accompanied Mina was Mr. Yujeong, right?
(She even went to the hospital)
I think the teacher who is the guardian is Mr. Kim Yujeong.
- March 25. - On this day, Munbanggu...
I ended up organizing Munbanggu under the teacher's order.
I am proud since my friends seem to be enjoying it.'
This must be the beginning.
'There is something that gives me a bad feeling in Munbanggu.
Can I let this continue?
I cannot sleep because I feel bad towards my friends.
She feels guilty.
It means she was not aware of all this when it started.
(Oh?)
What is this?
(A black post-it without any writing)
(If you press it)
(You will find the fifth secret diary entry)
April 29.
'The teacher got very angry because of my mistake today.
I should not disappoint my teacher.
So I have to do better in the future.'
I guess this is what she does on the days she feels upset.
(She uses black post-its to hide her diary)
May 27 2022.
'I got hit by my teacher'.
She was hit?
'Is it hard for me to fulfill my teacher's expectations?
I studied hard and also did everything I was told to.
What did I do that was so wrong?
My teacher is very scary.'
'August 1.
I did not know that the camp is this kind of place.'
This must be the Blooming Camp.
'I was disgusted with what I saw.
I didn't know this is the effect of what I've been doing.
Is there anything I can do?'
(I see)
Even before I came to this school, I felt that
Blooming Camp was very weird.
Only some are selected. It is just a camp. So is that necessary?
Blooming Camp is always involved in the things we find weird.
They made students fall for gambling games
and build up debt.
Then it becomes a reason for them to become lab rats
in Blooming Camp.
'August 3. If I leave things as it is, my friends will be in danger.
All I can do is to reveal about the camp and my teacher.
I think someone like Mr. Suyeol will be able to help me.'
(Mr. Cha Suyeol is mentioned in Seulbi's diary)
'It is so hard to collect evidence without my teacher knowing.
I want to collect evidence as fast as I can
and tell the truth to Mr. Suyeol.'
It means he is aware of something too.
'September 5 2022.
I told everything to Mr. Suyeol.
But nothing happened.
I am so confused. What should I do now?
Who can I trust?
I'm lost as I have nowhere to lean on now.'
He knows about it but did not take any action.
It means Mr. Suyeol is part of them.
Mr. Suyeol is either someone who conspires with them
or just an on-looker.
I knew it.
She was looking at Semi and Seulbi's student record.
(Ms. Kim Yujeong was reading two students' records)
(Lee Seulbi)
(And Yoon Semi)
Jihee told Semi that she is an orphan.
So both of them...
(There's high probability that Semi has a guardian too)
Semi is the administrator.
(Is Semi the current admin?)
This must be the situation. 'I will be your guardian,
so you should do this for me.' This must be it.
When they realize this is what they have to do,
she kills them.
Oh my gosh.
There was a system inspection on October 1.
Munbanggu's system was down on October 1.
It is the day after Seulbi's death.
The system was under inspection a week after Seulbi's death.
That must be when the admin was changed to Semi.
Jihee is not the admin.
She just uses Guccilover as her user ID
and loans cookies.
Did they argue as there were issues with their work?
I heard them saying, 'Why did you not do your job well?'
(Jihee was pressuring Semi by asking about how she worked)
Then she said that Semi is an orphan.
(She revealed Semi's background during their argument)
Your mom is not your biological mother.
We know now that there are three admins.
(Did Seulbi leave her diary behind with the whirlpool as her hint?)
She had a feeling that she would be killed.
Was she wishing someone will find this as she knows she will die?
She wants to at least leave this behind.
She doesn't want to see more victims in the future.
This is like a secret code that she wishes someone realizes.
It's almost 4PM now.
Let's go.
Let's find out from Youdontknowme if the admin is Semi.
Who is Youdontknowme?
We decided to not reveal the information we know, right?
Yes. We cannot trust anybody.
Who can hide this diary?
(They need to be prepared before meeting that person)
Shall I hide it?
(Inside the padded coat?)
(They will hide Mina's laptop inside the bag)
(They succeeded at hiding the evidence)
(They are anxious to meet Youdontknowme for the first time)
It's cold.
Shall we have some ramyeon and buy one for Youdontknowme?
Nice!
I want to eat something hot.
Let's make her answer with something tasty.
Okay.
Youdontknowme is not Producer Seungnam, is it?
(Oh!)
Yongdonknowme.
Shut up, boy. Shut up, boy.
I think we are being too rude to an adult.
(Their steps become lighter)
(One lady is waiting for the mystery club)
(Tapping her fingers)
She is here.
(They saw someone seated)
Who is that? She is listening to music.
(She is also using an apple pod)
(Youdontknowme?)
Hi.
(Hi, my friend)
(This student!)
(Her bag was inspected on their first day in school)
We are just...
(They slowly spread their fingers as if in a trance)
You don't know me.
(Desperate)
(You are Youdontknowme, aren't you?)
How did you know that I am Youdontknowme?
Actually...
(Blocking her way out)
Mina asked us to help her out.
Mina asked for your help?
Mina couldn't meet you today because she has something to do.
I heard she's supposed to meet you today.
What?
Why?
I have an I.S to tell her.
Is?
I.S.
- I.S? - I.S?
Interesting story.
(I.S. is interesting story)
So Mina is not coming today, is she?
Let's listen to I.S. then.
No, I just want to go home.
- No. - We have I.S. too.
You...
You like Mina's brother, don't you?
(We know about it)
(We know what you like)
Hold on.
How do you know him?
We are very close with him.
You are?
(Unhappy)
I actually don't understand this situation.
He is definitely not my style.
So I was fascinated.
We even spend time with him in his room.
(Having fun together)
Okay. Have a seat for now.
You're not lying, are you?
Depending on what you will tell us today,
what we tell him will be different.
Okay. I get it.
He's not that great.
What is your name?
Hey.
You don't know me.
Aren't you reminded of someone's name?
Suzy?
That's me.
(They are laughing the most after coming to this school)
(A large ripple)
Do you have only one syllable to your name?
Su Zy?
I am Bae Suzy.
(Snorting)
Doona. No, Suzy.
Tell us.
You're good.
Lee Doona.
Okay, girls.
Tell us your I.S..
(There needs to be give and take)
Okay.
At least you should listen to this.
You know about Munbanggu, don't you?
Yes, we do.
We just played the ladder game before coming.
We lost so much money.
People who play there do spend lots of money.
It means the whole game involves a large sum of money.
Mina knows that someone earned a lot of money through Munbanggu
and started to spend a lot of time there.
She goes there every day.
I knew it.
All I did was to watch the events they have.
That was how it should be done.
(Youdontknowme received an apple pod through an event)
You are amazing.
I saw on the metaverse that during events,
they actually provide gifts that are expensive.
Apple pod max?
Youdontknowme.
(Expensive items are given out at Munbanggu)
Mina has always been curious about who the admin is.
So I
found out
who it is.
(Get loud)
(As expected from Bae Suzy)
You might end up dating Mina's brother after this.
Do you want his number?
I put my trust in you.
Tell us.
I will give you his number.
Get closer, girls.
Don't be surprised.
The one who created Munbanggu
is a graduate of
this school.
Isn't that amazing?
Yes. That person wrote 'juniors'.
(That teacher is also a graduate of Songhwa)
Graduate?
I'm certain that it is Ms. Kim Yujeong.
It is between the female teachers as this is a girls' high school.
Ms. Kim Yujeong is our number 1 candidate.
Ms. Na Hunhwa.
The principal.
But something is weird too
because Mina said that the admin seems to be a student.
Doesn't it mean the graduate gets a student to be the admin?
Yes but I'm not sure.
It's because the creator and admin might be someone different.
I heard a rumor before.
I heard that the admin
is actually Yoon Semi.
What do you think?
- Yoon Semi? - Yes.
We are certain that Yoon Semi is the culprit
but we do not have anything to prove that.
The one who can give us proof is Youdontknowme.
It's because she said that she knows who it is.
I was thinking of finding proof to support our suspicion.
Yoon Semi from Class 2-1?
Yes.
You're driving me nuts.
(Is this just their delusion?)
She is just an ordinary student.
(She failed to get information)
Anyway, I have to go now.
I have to close the shop.
We want to buy something.
The owner is not here. So you can't buy anything.
How did you open this place up?
I am the famous person of Songhwa. We are close.
Oh yes. Girls.
Did you see the update on Munbanggu today?
I heard the recording room will be open today.
Yes. The update on the recording room.
Is it open now?
Yes. They are giving prizes too.
(The recording room is open?)
Let's go there.
Anyway, goodbye.
- See you. - Bye.
Does it mean that teacher is an alumni?
(Excited penguin mystery club)
This is a girls' high school. So it is not Mr. Suyeol.
- It is Ms. Yujeong. - Seems like it.
Let's go to our clubroom and check it out.
Let's check the metaverse.
Ding, dong.
(They are back to their room)
- I got a text. - From Producer Seungnam?
It's Producer Yoon Seungnam.
(Taking a deep breath)
'Jiyoon, this is about the suicide case due to bad grades.
I investigated that case.
Student dropped to death at X High School.
Reason is stress from studying.'
This is from October 3 last year.
'On September 30, a student, L, was found dead
from falling off the building at Yeseong-gun.
The late L was believed
to have been under stress due to sudden bad grades in a mock test
as she came under pressure about university entrance.
L used to live in an orphanage
and her guardian, K...'
Kim Yujeong.
'With K as her guardian,
L is known to be a student with flying colors
and her passing is a loss.
Police and other related bodies have investigated this case
but did not find any foul play.
They came to the conclusion that L decided to commit suicide
due to the stress that she underwent from studying
and the case was closed without an autopsy.'
It's clear she did not commit suicide.
No autopsy was done.
She was murdered.
'I also found something out while investigating that case.
There was a major case that happened at that school before.'
(He provided two articles)
This is from October 1 2003, on a Wednesday.
It's because she died on September 30.
'High schooler Lim who is known as the rising star in archery
passed away from falling from the school's rooftop.
She was found dead after falling from the dorm's rooftop.
Last night at around 9PM,
Lim, a rising star in archery,
was found dead at a school in Chungnam.
During her middle school years,
she became famous for winning the National Sports Day for Youth.
When she started high school,
she became a rising star for winning
most of the competitions which deepens our sadness.
A spokesperson from the police agency said that
they are currently investigating the site to find evidence.'
But listen to the next one.
There is an article saying that she took her own life
released on October 6.
'Found testimony from witness.
Case was concluded as suicide.'
- Witness? - A witness testimony?
The late Lim's family strongly insisted
that she does not have a reason to commit suicide
which prompted police to investigate the case.
However, two days ago,
they received a testimony from a witness who saw her last.
Police mentioned that K, also a student of this school...'
Is she Kim Yujeong?
- It might be her. - It might be Kim Yujeong.
It's because she is an alumni.
'According to K, she was about to leave school at around 9PM
and saw Lim on the rooftop
all alone.
On top of that, Lim is believed to be under a lot of stress
due to her lackluster performance recently.
She mentioned that Lim seemed anxious and struggling.'
But she might be lying.
(Confused)
I thought that something was off with this.
Other information we found about this parallel universe theory
is that the cases were closed as suicide.
However, there is something that is suspicious about it.
'The school mentioned that they will build
a memorial to remember Lim in school
by planting pine trees
as they wish to remember the late L forever.'
There are many pine trees here.
(Songhwa has many pine trees)
(Is one of the trees here a memorial tree?)
I think K is actually Kim Yujeong.
Yujeong murdered Lim Danbi.
She also made Seulbi's death look like an accident.
She committed murder as a student
and came back as a teacher
to open Munbanggu
and committed another suicide.
There is something else from Producer Seungnam.
'This is not reported in any articles
The day after Lim's death, her best friend committed suicide.'
What?
'The school kept it quiet since the two cases
happen one after another.
I talked with the late student's family
and received a short suicide note. You should read it too.
Memories in the heart. Longing for the sky.
Regret buried by your side.'
'Memories in the heart'.
(Memories in heart. Longing for sky. Regret buried by your side)
This is a suicide note, right?
'By your side'. Beside the pine tree!
Let's go.
This is a suicide note by her best friend?
Yes, that is right.
Beside the pine tree.
I'm certain of that.
When I heard that something is buried by her side,
I thought of the pine tree.
Let's dig up the pine tree.
(They are ready)
Be prepared.
If we step out right now,
we don't know what will happen
and might not be able to return.
- Stay alert! - Take everything we need.
Put things like heat packs here.
We might need to be digging.
Do we have something like a shovel?
You're right.
Let's take this too.
(They get flashlights from their box)
Shall we bring a magnifying glass instead of a shovel?
(Taking magnifying glass which has a strong grip)
(They are ready now)
Let's go.
It's dark now, right?
Yes, it is!
The sun has set.
We are doomed.
It should be over there, right?
I believe so.
Let's go! Be confident!
I won't be scared again.
Be alert!
I'm scared.
(The confident duck suddenly changed)
Which pine tree is it?
I'm not sure.
(But they continue to walk confidently)
There are so many pine trees.
(Packed)
How are we going to find it?
Yes. This is definitely Songhwa.
(Pine tree forest)
(They secretly enter the pine forest)
It feels warm here.
There is a shovel!
That is a shovel.
We found a shovel.
Let's dig using a shovel.
(However)
(Where should we dig?)
Why is this the only one that is tied?
Yes. Why only this tree?
(This is the only tree that is covered)
There must be one tree that is marked among all the trees.
Yes.
They seem to try to keep this tree warm.
(They started to dig randomly)
(Oh?)
(Something is hidden under the pile of snow)
'Forget your short life, become rain and wash away your sadness.
September 9, 2003'.
I'm sad that she left the world when things were going well.
Right?
(What secret is hidden at this monument?)
I'll dig.
Okay.
She said that it is buried beside Danbi, right?
Yes.
Is it beside this tombstone?
Yes, I think so.
(BIBI uses all her energy)
(Bit it is not easy as before)
I cannot dig well.
(Scraping)
Jiyoon was like a bulldozer.
She was digging using the magnifying glass.
Here. I found something.
- What is that? - There's something here.
What is that?
I got it.
What is this? This is scary.
I saw something white that was covered in a plastic bag.
I think it was a pretty box back then.
However, it had rust on it and the ribbon was undone.
It made me think that someone who really liked Danbi
must have buried all their memories together here.
Let's bring it in and check it out.
(They decided to bring it to their room)
The magnifying glass was better than the shovel.
(Magnifying glass: It is better at digging than a shovel)
Shovel Jiyoon.
But this is so sad.
It's sad to see a tombstone there.
This is very scary.
(They have a bad feeling from before they open it up)
If her best friend buried this,
I believe that there would be information on Danbi.
What's this?
I thought that we would find something important in it.
Someone took it.
It was empty.
What we did was futile.
Someone beat us to this.
Who is the person who was one step ahead of us?
Is it Ms. Kim Yujeong again?
(Falling)
The reason we found a shovel
is because someone dug and took it away.
Someone did that.
(High School Mystery Club 3)
(This case is going nowhere)
(In order to solve it,)
(do not trust anybody)
(Be suspicious of everything)
(This is the only place to find clues)
(They finally found out)
(the brutality that has existed here)
(since a long time ago)
This is from 2003.
(People who are trying to hide the past)
(They are trying to unravel the truth)
(Although they are suspicious)
(It started to snow heavily as if to hide the truth)
(They have to unravel the truth before it is too late)
(This is where everything began)
(They can see light)
(within the dark?)
(A mysterious student ID
We have to go out from this side.
(However, their path got blocked)
(and are stuck in the worst situation they can think of)
(Will they be able to escape?)
I'm sorry, teacher.