During their time at Kirin High School of Arts, a group of young people shared the same dream. Ten years later, K-POP star 'Song Sam-dong (The-K)' returns to school due to tinnitus. However, Kirin High School has changed, and students' dreams are on the verge of disappearing due to the plans of the acting principal and Ma Doo-sik. The characters, who had been walking their own paths, now stand at a crossroads, facing a choice: will they gather again to protect the school and their dreams?