All she wanted was to have the high school life she has always dreamed of. To make many good friends, to hang out and have many memories and experiences, and most importantly, to find her first love and have the high school romance she often fantasized about. Park Mikyung who is bright, friendly and approachable, could easily have all that. Or so she thought. All of her hope turned into dust as her troublesome childhood friend, Oh Sehun enrolls into the same high school as her. Will things turn out bad like she expects? Or will it turn out to be much better?