Five Japanese high school students are too young to be called adults, but no longer think of themselves as children: Sakai Wakana once took music lessons, but she withdrew from music after losing her mother. Miyamoto Konatsu is a positive-thinking girl who loves singing and spends time after school at the vocal music club. Okita Sawa, a spirited archery club member, dreams of becoming a horse rider. Tanaka Taichi, a chronically late badminton team member, lives with his college student sister. Wien just transferred into Wakana's class after 12 years abroad in Austria. Music brings Wakana, Konatsu, Sawa and the others together into an ensemble during their last summer in high school. Source: ANN