Jessica Jung is the heir to Jung empire. She has a lot (basically not hers but her family's), of businessess like she owns the school that she goes to. Her family lawyer and very close friend is the one that runs it now until she was the right of age--when she turns of age which is just a year far. The reason for all of that is because she lost everything. She lost her family in a very young age.

          All she do is go to bar, drink all day and night. She distanced herself from people and she only talks to the lawyer and her three friends --Taeyeon, Yoona and Yuri. She ignores everyone that tries to talk to her. But even if she's like that she's amidst by fans and people that really adores her. It's because of her cold and deadly face but very charming and perfect. No one can resist her beauty. 

         You can almost say she's perfect. She is best soccer player in her school which is Haraeth International School. She's also really good in singing. She and her friend Taeyeon formed a band. They perform when there's an event in the school. It always leave everyone in awe. Nevertheless, she doesn't really take singing seriously. She only performs because her parents made her do it made she was young and it became a tradition. The only problem she has is that she's heartless and really cold. Beware when her eyes landed on you. You'll freeze in spot and won't ever forget that for the rest of your lives.

         She only listens to her sister but since she's not with her, her life is a mess. She never listens to anyone, not the Student Council President, not the lawyer that raised her, and not even her friends. 

On the other hand.....

        There's this girl. A certain girl that melts everyone using her smile. The girl that has the warmest smile that even the strongest and coldest glacier will immediately melt. She's very out going. You can also say she's perfect except that she's a player. You can't even count her exes, flings and people in her life. You can't blame her though, she was hurt. She was dumped. She was broken-hearted. She was betrayed by first love. 

        She's searching for something that she--herself doesn't even know if it exist. She's trying to prove something to herself.

        She realized she can't find it in this place, so she decided to return to her home, Seoul.

....

They both have something in common. Only one and the rest is completely the opposite.