Yuna Castellano, a 17-year-old high school transfer, is a clumsy, carefree teenager with an unexpected secret: she's a talented songwriter for big-name celebrities. After moving to a small town, she discovers her new school's band is more about good intentions than actual talent. Reluctantly dragged into their chaotic attempts to become school stars, Yuna juggles her secret songwriting career with her disastrous school life, all while avoiding responsibility and bad luck at every turn. Can she keep her secret and help the band, or will her mishaps catch up to her?