In the besieged land of Esteria, mythical creatures pose a dire threat to its people, prompting a valiant army to rise against them. As the defenders dwindle in number against the relentless onslaught, hope seems scarce even within the walls of Minea. Amidst this despair, a prophecy emerges foretelling the coming of a courageous youth destined to bring salvation. Enter Adol Christin, a spirited adventurer driven by wanderlust, who finds himself on Esteria's shores following a shipwreck. Guided by the mystical Sarah Tovah, Adol embarks on a quest with his companions to seek out the fabled Books of Ys scattered across the island. Their journey is fraught with danger and challenges, but if destiny guides their path, Adol may emerge as the hero capable of restoring peace to the troubled land of Esteria.