Although Nanami Haruka (voiced by Miyuki Sawashiro) has never received any music-related education, her experience of living with her grandmother who loves music since childhood has given her a strong talent for reading music scores instantly. For this reason, Haruka entered the Saotome Academy, which is sought after by colleagues in the music industry, and began to learn and explore music. Among the students, Haruka did not become the brightest rising star, but her kind and simple personality attracted everyone's attention. The lively and cheerful Ichitoki Otona (voiced by Takuma Terashima) always lends a hand when Haruka is in trouble; although he is the son of a large consortium, Seikawa Mato (voiced by Kenichi Suzumura) is actually very cute with his cold personality on the outside and warm personality on the inside; the genius performer Shinomiya Natsuki (voiced by Kisho Taniyama) has an unknown secret. In addition, there are many shining men gathered around Haruka. What Haruka has to do is to form a super popular band with one of them as soon as possible. Can Haruka succeed? Let's wait and see.