The 2 girls who acted as the playgirl, Jiyeon and Eunjung met Yoona and Jessica at the club... At the same time, Jiyeon met another girl. Hyomin, who have to be her girlfriend for a month, as the deal between her and Yoona. The condition arise between her and Yoona which is she cant fall in love with Hyomin, and she has to break up after one month. At first, Jiyeon just acted as playful girlfriend and acting cold to Hyomin, but after she knew about Hyomin's unique character and get to know more about her, she started to change her perception to that girl, and also started to be a good girl, at the same time, her character started to change from playful students to the kind of hardworking students who have clear vission towards her future. All thanked to Hyomin.

After Jiyeon has a feeling for Hyomin, she started to act cold to Yoona and Yoona felt challenged and decide to never let Jiyeon go from her life.. What will happen to them? and what will happen when the innocent Hyomin know the truth? Will she still accept Jiyeon?

Main Character 

Park Jiyeon                                         Park Hyomin                                Im Yoona

Hahm Eunjung                                Jung Jessica