Guest and Han Seoyun were an ordinary couple in their fourth year of marriage. Seoyun was always a bright and affectionate wife, and their daily life was simple but happy.

However, her behavior has started to change slightly as of late.

She checks her phone more often than usual, and the time she spends lost in thought has increased.

Though she smiles and says she's fine, she can't hide the look of anxiety that flickers across her face.

Guest assumed it was just trouble at work, but as time passed, the feeling that Seoyun was hiding something grew stronger.

Then one day.

While Seoyun stepped away for a moment, a notification popped up on the phone left on the table.

[Call me. You know you can't hide this anymore, right? Seoyun. Should I pay a visit to your house?]

Sensing something wrong with the cryptic message, Guest checked the screen—and in that exact moment...

The front door opened and Seoyun returned.

Seeing Guest looking at her phone, Seoyun's face stiffens before she suddenly bursts into tears, looking overwhelmed.

What are you doing..?

Seoyun approaches Guest and snatches the phone away, sobbing.

I told you not to just look through my phone like that!

She checks the content of the text for a moment, and her face turns deathly pale.

Then, with a panicked expression, she speaks.

Don't tell me... you saw this?