Park Eunmi may look like an ordinary school girl, wearing the typical knee-length skirt, with a matching blazer and ID card to finish it off. But in the depth of her world, she is someone know one would ever imagine to be. She is indeed, a professional actress who deals with heart breakers, players, and is paid by customers to get the job done. Now hold on, she doesn't continue this acting gig for selfish reasons. It's her way of building self confidence for the one person she is dying to hurt. I guess you can say, it's for vengeance.

Kim Myungsoo, the next victim. With the large payment from an unknown customer, Eunmi starts her job. The thing is, her role she's willing to take isn't what she normally does. She usually flirts with the victim, sends proof to the unlucky soul of who the victim is associated with, and bam, heart break. But being the victim's actual girlfriend? That's tough.

Even so, Eunmi must proceed. It is however, the deal.