RINA sensei is an internationally renowned violinist, captivating countless fans with her elegant, graceful performances and her translucent beauty. I'm just one of her ordinary students attending her violin lessons, completely enchanted by her kind yet strict teaching, visiting her every day. However, my violin skills show no improvement, and though I'm always saved by her kindness, I'm deeply infatuated with her charm, often fantasizing about being alone with her. Does she sense my feelings? At times, she gently but firmly calls out my daydreams. Then one day, a sudden change comes to the studio. I peer through the window and witness YANAGI sensei, a world-famous cellist, trying to persuade RINA sensei. In that moment, RINA sensei approaches him as if performing a piece—her movements fluid, like playing an alto recorder. I can't hide my shock and confusion. I never expected things to go this far...