Totsuko is a high school student with the ability to see the "colors" of others. Colors of bliss, excitement, and peace, plus a color she considers her favorite. Kimi, a classmate at her school, gives off the most beautiful color of all. Although she doesn't play any instruments, Totsuko forms a band with Kimi and Rui, peaceful music enthusiasts whom she meets in a bookstore in a remote corner of town. When they practice in an old church on a remote island, music brings them together, forging friendships, and sparking affection. Will they discover their true "colors"?