Sin Uoo Park, he is a son of a president who owns the one of largest company in Korea. In addition to the background, Sin Uoo is very handsome, smart and cool headed which makes him the best kinga (Another Korean street language. It means the most popular guy). Sin Uoo disliked Aram specially, knowing Aram's personality. Sin Uoo even ordered the school mates to isolated her intentionally.
And Aram came back to the school. Sin Uoo's mean play with Aram was about to begin without knowing Aram was the Aram he knew previously. Ha Ji was not pretty and her figure wasn't great, either. Ha Ji also used extremely informal language. But she had a good judgment and understanding toward matters. Ha Ji was also a good eater who spends most of time eating stuff. With Aram's sudden complete oppose change, Sin Uoo was confused for a while and begins to have a real interest in her. Apparently, Ha Ji had the most element that any women needed to become Sin Uoo's girl friend, the dumbness. Rather than trying to understand Sin Uoo's intentions, Aram (Ha Ji version) faces whatever obstacles came to her. Since Ha Ji was the jjang of a gang. She also had a nice fighting skills. Unexpected change of Aram, Sin Uoo became more confused. Finally, Sin Uoo gave up trying to understand and decide to like who Aram is today.