Haruka Nanami, a young composer from the countryside, aspires to make music for Hayato Ichinose, her idol. She enrolls at Saotome Academy, a prestigious vocational school for the performing arts, determined to achieve her ambition. Haruka quickly discovers that everyone on staff, including the headmaster, is either an idol, a composer, or a poet upon her arrival. To top it off, she's surrounded by immensely bright future idols and composers, and the rivalry among the students is severe; with the potential of being hired by the Shining Agency after graduation, the stakes are enormous. Haruka is working hard at the academy to achieve her goals, and one fateful night, a chain of circumstances leads her to a mystery figure standing in the moonlight.