Totsuko is a high school student with the ability to see the “colors” of others. It is a color that she considers her favorite, as well as the colors of joy, excitement, and calm. Kimi, a classmate at her school, gives away the most beautiful color of all. Although she doesn’t play an instrument, Totsuko forms a band with Kimi and Rui, a quiet music lover, who meet at a used bookstore in a remote corner of town. As they practice in an old church on a remote island, music brings them together, building friendships and igniting love. Will they discover their true “colors”?