A slave by the name of Anai is aboard a boat to an unfamiliar island, expecting her life to continue the way it had been going for the past 15 years, but when her boat is struck by a storm and sinks the only thing she can expect is death. The outcome however, was completely different. Instead of the sea taking her life she wakes high in the sky, floating above the small island of Rurasaria. When the wind guides her down to the island she's at first relieved, and when a young man finds her in the forest her life changes completely. Still many things are left unanswered, like the island and its familiar feel though Anai had no memory of ever seeing it. Struggling to find herself Anai sets out on an adventure that could change the course of the world.