Mizore Yoroizuka plays the oboe, and Nozomi Kasaki plays the flute in Kita Uji High School’s concert band. Mizore is shy and soft-spoken, while her best friend, Nozomi, is outgoing. The two girls grow closer as they practice for their last duet before graduating, a piece called “Liz and the Blue Bird.” However, the impending separation may be more than their friendship can handle. Interspersed with their story is the fantasy tale of Liz, who like Mizore, seeks a friendship that may be too hard to hold onto in this beautiful coming-of-age story.