Oh Hayoung earns a living by working as a dancer and singer at the night club. People around her view her job as something inappropriate but that's the only job that pays her well enough to settle her father's debt.

Oh Sehun gets a reputation for him to keep as the young mainboard at his father's company. He was engaged with Seulgi since they were 18, as one of the ways to keep their family's reputation. 

After series of events, Hayoung and Sehun fall for each other; but unfortunately, confession is not in the list of options.

Hayoung realizes she is out of Sehun's league when she needs to lie about her occupation to that guy. Sehun is already questioning his fate when he knows he couldnt fall for Hayoung because she said she's an ordinary dance instructor. After he accidentally discover the truth, he feels betrayed. Sehun could not date any ordinary girl, what more a girl who works at the night club. The thought of him could not have her is frustrating, he lets his frustation controls him.

"What makes you any different from the es?!" Sehun screamed on top of his lungs.

Pak.

A quick but hard slap can be felt on his left cheek. Hayoung could not stand his insult, tears had already formed in her eyes. She chuckled sarcastically,

"You are not any different from those dirty guys who want to touch me. You are not, any different from those people who talk bad about me trying to earn a living. You rich people, can get the out of my life!"

Feeling betrayed, frustrated, mad, especially when he finds out that there's a guy named Jongin approaches Hayoung, Sehun turns into a complete devil one night as he making love to Hayoung only to completely leave her life after he wakes up the next day.

Hayoung leaves Seoul with her broken heart, trying to find peace where there's nothing could remind her of Oh Sehun.