Totsuko is a high school student with the ability to see the “colors” of others. Colors of happiness, excitement, and serenity, as well as one color she treasures as her favorite. One day, she forms a band with Kimi, a classmate who emits the most beautiful color of all, and Rui, a music lover she meets at a secondhand bookstore. While rehearsing in an old church on a remote island, they are eventually brought together by music.
