在星奏学院里,学生被分为两类,一类是就读于普通科的平凡学生,另一类是就读于音乐科的能够看见音乐精灵的演奏天才。在一次偶然中,普通科的日野香穗子(高木礼子 配音)撞见了音乐精灵莉莉(水桥香织 配音)。莉莉赠予了完全不同音律的香穗子一把魔法小提琴,只要和小提琴心意相通,就算是完全没有经验的初学者也可以演奏出美妙的旋律。 凭借着魔法小提琴,香穗子被选中参加了学校的音乐演奏会。这突如其来的新人遭到了许多学生的妒忌和算计,但香穗子也因此结识了一帮热爱音乐的良师益友。冷酷毒舌的月森莲(谷山纪章 配音),沉默温柔的志水桂一(福山润 配音),开朗率真的土浦梁太郎(伊藤健太郎 配音),双重性格的柚木梓马(岸尾大辅 配音),在和这些天才们相处的过程中,香穗子发现,自己对于音乐的心意渐渐的发生了变化。Hino Kahoko is a student whose school is divided into two branches-the Normal Branch, in which students wear gray uniforms, and the Music Branch, in which the students wear white. The school's tradition is a music competition, but it is more common that students from the Music Branch are chosen to compete. Kahoko is surprised one day to encounter a fairy named Lili. Solely because she is the only student to see him, she is the only student from the Normal Branch to be in the competition. Kahoko doesn't have any musical knowledge, until Lili grants her a magic violin, one that anyone can play if they believe they can truly do it. Kahoko must now face the trials of the competition, her competitors, and her peers.