In this influential cult-classic animated film based on Japanese folklore, Susano is the youngest son of Izanagi and Izanami, the heavenly couple who created the Earth. Still a young boy, Susano is devastated by the passing away of his mother. Determined to find her despite the reprimands of his father, he embarks on a journey to find his brother and his sister for spiritual guidance.

因为天使丘比特的恶作剧，蓝宝石在出生的时候就同时拥有女人之心和男人之心。因为王家只有男人能够继承王位的规定，女孩子从小被以王子的身份抚养长大。丘比特被派到人间纠正自己的错误从而使王子恢复女儿身。由此引发的一系列的冒险故事。