Dae and Kyuhyun had been friends for years and their friendship had always been leading up to something more. However, everything changed when Kyuhyun enlisted in the military. It's been 2 years and Dae is now in college with her roommate/ best friend, Ha-Neul. They also meet 2 trainees, Eunmi and Miyoung. Eunmi and Miyoung are signed on with Starship Entertainment and they attend the college with their good friends from Boyfriend. The girls become very close but they get the shock of their lives when they find out that a few members from Super Junior have volunteered to be instructors at the college.