Naho is a third-year student in the piano department who attends music college. I'm working hard dreaming of a professional pianist. Katsura Ohno, a popular pianist that Naho longs for. The two met through Shota, the son of the Jimbo Musical Instrument Store, which is their favorite. Ohno, who was taken by Shota to Naho's house, attacked Naho with the excuse to polish his sensibility, which was lacking in Naho's piano.