Jongsu has finished his college entrance exam, and that means that until he receives the results he will be able to invest his free time in music without his father constantly pressing him with his studies and his professional future. During this holiday period, he will spend the days with his lovely sister Minji and her bandmates, Chen and Haejin. Haejin, with whom he is madly in love, but his shyness has never allowed him to confess. Everything seems to be going well in this almost idyllic period, but Haijin reveals that early next year he will go to town to become a Kpop idol…