The scene starts with Jaeahn's flashback revealing the truth:
Jaeahn knew Hyejin's truth from the start.
The day Hyejin came to her place…
the first moment Jaeahn saw her, her whole body froze.
Everyone had noticed only the bracelet — the same hand that had shot Jihu.
But no one noticed the small scar on that hand.
Only Jaeahn noticed.
She didn't give it attention at that moment.
But later, when Jaeahn helped Hyejin pick up her bag…
Hyejin dropped it.
And Jaeahn saw it clearly.
Her hands started shaking.
It was the same bracelet.
The same hand.
Jaeahn's gut screamed the truth.
I need to find out…
Hyejin… that girl… I need to spy on her, Jaeahn thought.
Flashback ends.
---
In the present, Jaeahn says in her mind:
Now you're trying to manipulate me…
but I'm sorry to say…
you messed with the wrong person.
She smiles.
At that moment, Jongsuk also smirks and whispers:
"I know. Our plan worked very well."
They look at each other and smirk again.
Hyejin says,
"I'm sorry but Jaeahn can i move back to another place. I have important work."
In her mind she thinks:
If I live here, I can't do anything… I won't get a chance.
Jaeahn, in her mind:
Okay dear… if you think moving back is better, do it.
I know what to do, and when to do it.
"Okkk," Jaeahn says aloud.
"If you need any help, ask."
"No need," Hyejin replies.
At that moment, Do Hwan arrives.
The door opens, he steps in—
And Hyejin comes out of her room saying:
"I'm going."
Jaeahn only answers with a calm, "Okkk."
The sound of Hyejin's high heels echoes…
The door opens again—
she leaves.
---
Silence fills the home.
Everyone looks at each other.
The atmosphere turns cold.
Then—
they all start laughing.
Because the truth is revealed:
Everyone knew from the start.
Jongsuk removes the bandage from her body.
jongsuk is injured....
but not serious...
.....
Warmth returns to the room.
Hyejin's entire plan…
Jongsuk getting hurt…
the man they caught…
All of it was THEIR plan.
But Do Hwan stands still, frozen…
his mind lost, replaying Jihu's face again and again.
Do Hwan's flashback:
"Don't tell Jaeahn or Jongsuk," Jihu .. said.
"I don't want them to get hurt."
Flashback ends.
"Are you okay?" Jaeahn asks softly.
"Is your work complete?"
"No… some of it is left," Do Hwan answers.
---
Later that night, after dinner…
Jaeahn says:
"Rest well today. Tomorrow will be a hard day."
But Jongsuk notices Jaeahn looks low.
He doesn't ask—just goes to sleep.
---
Midnight.
1 AM.
Jaeahn hears her own deep breathing.
She thinks seriously about something while watching TV.
Jongsuk comes for water.
He sees her awake.
"You didn't sleep?" he asks.
"I just… don't feel like sleeping."
Jongsuk sits beside her.
"Did you forget what you said? Tomorrow will be hard.
So go rest well…"
"…my dear."
"Huh?" Jaeahn blinks.
"Dear…?" she repeats.
"A-ah—nothing! Go rest!"
Jaeahn tries to sleep again…
but gets a nightmare.
Her heartbeat rises.
She wakes up scared.
She can't sleep again.
She grabs some books to read.
---
Morning.
Everyone prepares for the day.
But after watching the news…
their expressions change.
A strange silence fills the room.
The news shows—
Hyejin was brutally murdered.
Her body found in the sea inside a box.
They look shocked.
But not guilty.
Instead—
they smirk and look at each other.
And here…
it finally starts.
---