Ten years ago a devastating shipwreck split Fena Houtman from her childhood companion Yukimaru and claimed her father's life. Now, at twenty‑three, she is stranded on an island, destined to spend the rest of her days prostituting herself to men. On the eve she is about to be forced into a marriage with a client, Fena devises an escape plan from her employers; however, two former acquaintances unexpectedly intervene and help her flee.
The trio rushes toward the open sea and reaches Goblin Island—a shadowy locale that a band of fierce warriors calls home. There, Fena discovers that her father's ill‑fated final voyage at sea sought a place named "Eden," the site of something vital he was meant to safeguard. Armed only with a clear crystal as a clue, Fena is charged with locating this place, for she alone can succeed.
While still mulling over the quest to uncover what her father left behind, Fena reunites with Yukimaru, who urges her to pursue the mission. Now leading a seven‑man crew, Fena must steer through the high seas in search of Eden. Yet as strange factions begin to pursue her, the perilous expedition becomes even more daunting than before.
