Rumi Seto plans to spend her life writing music with her younger sister, Lea. When Lea dies in a car accident, her mother sends Rumi to live with her aunt in Hawaii while she deals with her own grief. Struggling with the loss of her sister, abandoned by her mother, and without music in her life, Rumi turns to the friendship of a teenage surfer named Kai, and an eighty-year-old named George Watanabe. And Rumi is determined to write the song she and...