Mana Shikimiya, a new transfer student at Marehoshi Academy, soon discovers that all students are required to join a club - either cultural or sports. Vice President Minori Hasegawa introduces her to several options, but Mana is particularly drawn to the Lyrical Tradition Dance Club after witnessing the impressive skills of its only two members, Mizuha Ichikishima and Sayu Tsukisaka. Determined to join their ranks, Mana sets her sights on winning the national competition known as the Prism Stage, but her aspirations are threatened when the club faces disbandment due to their lack of members and accomplishments. In order to keep their dreams alive, the trio must rally more members and transform into a talented idol group that can impress the judges at the Prism Stage and take home the coveted prize.