Asano Minato is a tall but stooping first-year in high school. Though she's a killer trombone player, she does everything she can to fade into the background. Despite her best efforts, Minato catches the attention of her bubbly and charismatic senpai Hibiki, who wants Minato to join the mysterious band she's forming at school. And she won't take no for an answer! Will Minato be able to let go of the past and play in a school band again? Can polar opposites harmonize through music? Slow jam your way into this dulcet yuri series!