在这部出发的岛歌 十五岁之春音乐片中,坐落于茫茫大海中央的南大东岛，当地的孩子们要想继续高中学业只有乘船前往三百公里外的冲绳本岛。没到15岁的夏天，岛民们便为民谣组合博罗蒂诺女孩的适龄姑娘们举行告别仪式，而女孩们也将唱响那首感人肺腑的《再见》，对生养了他们的父母致以深深的谢意。送走了前辈，博罗蒂诺女孩的优奈（三吉彩花 饰）也迎来了她在岛上的最后一年。她的哥哥姐姐之前相继离岛，母亲（大竹忍 饰）也为了照顾他们的起居前往本岛。留在当地的父亲（小林薰 饰）和优奈相依为命，优奈隐隐感受到父母之间的不安。她挂念孤独的父亲，也为青涩的恋情踌躇。
前路漫漫，唯有悠扬的旋律伴她同行……
Teenage girl Yuna lives on a minor island of Okinawa in Southern Japan. Her island has little technology, no high school and no alternatives to tending to the land or water as a living. Teenagers have to decide to stay and engage the elements or leave for higher education. The island does have a community, however, which comes with a tight-knit culture and idiosyncracies. How to proceed, progress and evolve become matters of conscience, tension, momentum and inertia.
放不下的乡愁。再见里的一段歌词。这种片子还真不好剧透。夏日清新风，五部海岛乡村电影。十五岁那年，我未离家，暗恋一个人。
