Uta Komaki, a first-year high school student. Many things she's not good at. One thing she loves: singing. Aiming for a normal high school life, she tried to make her high school debut by joining the light music club, but her timid personality led to a spectacular failure. In her despair, Uta discovered acappella, music created solely by human voices. There, she found the awkward youth of girls who could only connect by layering their singing voices. ──Even if it doesn't shine, it's still youth.