Totsuko is a high school student who sees the „color“ of others. The color of bliss, excitement, and peace, and also the color she considers her favorite. Kimi, a classmate at her school, radiates the most beautiful color of all. Although Totsuko doesn’t play an instrument, she forms a band with Kimi and Rui, a quiet music lover they meet in an antique shop in a remote corner of town. As they rehearse in an old church on a remote island, music unites them, forging friendships and awakening feelings. Will they reveal their true „colors“?