Min-Jung is a 17 year old girl that feels like she's been living under her older sister's shadow, Min-Hee. But Min-Jung has never told her since Min-Hee is a very caring & loving sister that has always been by her little sister's side. Both sisters go to the same school. After school Min-Jung goes to dance class & Min-Hee goes to her singing lessons. Min-Jung has always had a crush on Changjo while Min-Hee has always had a crush on L.Joe. Min-Jung has always felt invisible to him but all that is gonna change when she gets the opportunity every girl would dream of....