Haruka and the princes have won the graduation competition and are now artists under the Shining Label. One day, an invitation to a master course comes from the chairman of their old school. Since the idol industry is full of competitions now, they have to take another step to discover their talents. The boys are to train under experienced idols in pairs. Their senpai idols have quirks that make them unique, they also bring conflicts to the scenes. With a larger cast of boys and more scenarios, Uta no Prince-sama Debut is going to merge romance and music even tighter together.