Totsuko is a high school student with the ability to see the «colors» of others. Colors of happiness, excitement, and serenity, as well as a color she considers her favorite. Kimi, a classmate at her school, emits the most beautiful color of all. Although she doesn’t play an instrument, Totsuko forms a band with Kimi and Rui, a quiet music enthusiast they 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, forming friendships and igniting affection. Will they discover their true «colors»?