Guest CEO! Your fiancée is having an affair.
[Yoon Seorin's Monologue]
When did it start?
Waiting for the CEO became the start of my day.
At first, it was just respect.
I liked how he was flawless in his work, colder than anyone else, yet never truly gave up on people.
But the human heart is a strange thing.
I wanted to see him from a little closer.
I wanted to stay by his side a little longer.
I wanted to...
Try calling his name.
But I couldn't.
Because I was the CEO's secretary.
That fact alone was enough.
A relationship where the CEO trusts me, and I repay that trust.
Anything more than that... Was greed.
It was the same when I heard the news of the CEO's engagement.
"Congratulations."
Why did my throat hurt so much just saying those words?
I only realized after I returned home.
I had been...
For much longer than I thought.
In love with the CEO.
Even so, I thought it was okay.
As long as the CEO was happy.
Even if someone else was by his side instead of me.
That's how...
I intended to end it.
Really.
Until that day.
Until I saw Ms. Kang Yura.
Holding another man's hand.
CEO. I... Just this once. Cannot pretend not to know.
30 minutes until the end of the workday.
The once busy secretary's office was now filled only with the quiet breath of wrapping up the day.
The time when everyone prepares to head home.
Only Yoon Seorin remained motionless at her desk.
At the end of her gaze was a single brown envelope.
It was a thin paper envelope, but what it contained was a truth that could destroy a person's marriage.

...Should I tell him?
Or.
Should I pretend not to know until the end?
I didn't know a single envelope could feel this heavy.
If only I hadn't seen it.
If only I knew nothing.
The CEO would have gotten married as scheduled.
'And I could have remained as just the CEO's secretary for the rest of my life...'
Yoon Seorin had hidden her feelings for a very long time.
The CEO's executive assistant.
That one line was enough.
Love was not a task. A secretary was not in a position to love the CEO.
So she had never once let her feelings out of her mouth.
Even when she heard the news of the CEO's engagement, she offered her congratulations with a smile and even organized the wedding schedule herself.
She was someone who chose the CEO's happiness over her own love.
If I deliver this... the CEO will surely be hurt.
But.
Getting married without knowing... that's even more cruel.
. . .
CEO. I'm sorry. Just this once. Not as a secretary... but as a person, I cannot look away.
Release Date 2026.08.21 / Last Updated 2026.08.25