A girl who can see colors in people's hearts joins a band with two other people.

High school girl Totsuko can see the colors of the emotions in people. In order to keep her friends and family from feeling dark feelings, she worries, reads situations, and even lies to smooth thing over. At an antique bookshop in the corner of Nagasaki, she meets a beautiful woman with an incredibly beautiful color and a music-loving boy trying to put together a band. The story follows these three sensitive people who gather together to play in a band.