Si-eun entices her friends to join the dance sport club while imagining a successful future by becoming famous with her newly found interest. On the day of the audition, they are all accepted into the club out of the club's necessity. During the initial introduction among the new members, another person is found hiding inside one of the club’s cabinets.
雖然詩恩計畫著升入大學，但是想到母親肯定不會同意，詩恩便向韓東希老師提出只要給她制定指南，剩下自己來處理。看到指南當中，要寫在學校生活中所學和感受到的東西，舉事例來寫而頭痛之際，發現體育舞蹈社團招募…
