Music college student rape melody

Naho is a third-year student in the piano department attending music college. He is working hard with the dream of becoming a professional pianist. Ono Katsuraichi is a popular pianist that Naho admires. The two end up meeting each other through Shota, the son of Jimbo Musical Instruments, who are both their favorites. Ohno comes to Naho's house with Shota taking her to her, and attacks Naho under the pretext of honing her sensibility that Naho lacks in piano...