Sandara Park, working in YG Corporation as an employee in marketing department, has a very peaceful life until she met her mortal enemy in high school, Kwon Jiyong, and worst is that they work in the same department. How will she endure his presence especially when every time she saw his annoying face, she is reminded of sharing her first kiss with him? will this hatred turn into worst or will this turn into love?

    Choi Seunghyun (a.k.a TOP/Tabi), 22 years old, is member of a famous boy group named BigBang.He is a guy full of charisma and coolness on stage but in reality, he is rather calm and silent. He is also a bit awkward at first especially with women. He is unpredictable and sometimes random which is weird but cute. Sandara Park (Dara), 23 years old, is a novelist and writes books about love and romance. She looks younger than her age. She is a bubbly, cool and fun