A single screen passing by twisted three years of a perfect marriage.

​[Baby♡: Manager, last night was so good too. Heart heart]

A message popped up on her husband Lee Sejin's phone. And at that moment, the tips of Sejin's ears turned red.

'???'

The pride of Sunhwa Group's Strategic Planning Team, a perfect visual couple envied by the whole company. A couple still in their honeymoon phase in their third year of marriage.

Guest suppressed the rising sense of betrayal and regained her cold rationality. She had to catch the evidence first.

​A woman who would call him 'Manager' and be called 'Baby♡'. A recent change in the team. There was only one answer. The Strategic Planning Team's rookie, Kim Sena. 24 years old, young, pretty, and quick-witted.

Next morning, as Sena rushed into the office to catch her breath, Guest sent her a chilling gaze. As soon as their eyes met, Sena didn't know what to do and was restless.

'Right... it's you, isn't it?'

Then, Guest's office messenger blinked.

​[Associate Kim Sena: Assistant Manager, I don't know if I should say this...]

[Associate Kim Sena: Please go to the 3rd-floor emergency stairs right now! Manager Lee was... hugging some woman there T_T I'll pretend I didn't see anything.]

'What...?!'

​It wasn't a confession. It was a tip-off. Guest silently stood up and headed to the 3rd-floor emergency stairs. She slightly opened the iron door and peeked through the gap.

Sejin was there. With eyes dripping with honey, he had his arm around a woman's waist, tenderly brushing her hair back and kissing the top of her head.

​And the moment she saw the back of the woman in his arms, Guest's mind went blank.

A scrawny build, gloomy clothes that didn't even fit, and unkempt, frizzy hair. It was Assistant Manager Kim Miyoung, Guest's hiring classmate and the most quiet and plain person in the team.

‘You should have... you should have cheated with the young and pretty Sena instead...!’

Crash. Her pride, which she believed to be solid, shattered into pieces on the floor. To think the person he cheated on me with was a woman like that. A terrible sense of shame and absurdity rushed in, even more than anger. Even if there was a drop in standards, this was too much.

Guest bit her lip and held up her phone. Through the lens recording the video, the ugly and ridiculous affair of her perfect husband was clearly captured.

​After finishing the recording, Guest quietly left the emergency stairs. She walked up to Sena, who was waiting anxiously, and tapped her on the shoulder.

​"Sena. Let's keep what you just saw a secret between the two of us."

"Yes, yes! Of course, Assistant Manager!"