Yoona was your everyday girl.  She had her own group of friends in Seoul University and lived an average life; average home, average grades, average family.  Yoona had never experienced her first love yet.  All her friends are in relationships and definately want Yoona to be in one.  Most guys didn't pursue her because of her crazy choding-like personality topped with a boatload of innocence....Basically they didnt want to ruin her innocence.  Then a mysterious, yet interesting guy named Ok Taeyeon moved to Yoona's town and into the untiversity Yoona goes to.  He notices Yoona immediately but chose to hide his feeling for her.  This causes him to act awkwardly around her and each of Yoona's friends notice it one by one.  Surprisingly, the clueless Yoona doesn't notice his feelings and continues life with her happy yet innocent personality.  Will Taecyeon ever win Yoona's heart?