Krystal Jung is a popular teen actress and popstar in Korea. Unfortunately, her granfather set her into an arrange marriage and threatens her that she will be cut off if she will not accept it. She disguise hereself into a nerdy looking girl when she enrolled herself in the school where her suppose to be fiance is studying just to look for him and be able to get to know him  since her granpa didn't tell her, her fiance's name. Will Krystal be able to find her fiance or she will fall in love to someone else?