Now that Adol Christen has freed Esteria from the evil priest Dark Fact, he and the two priestesses sail to the floating continent of Ys, where evil is even more powerful and no one has hope. Adol, heir to the priests' powers and the only one who can teach the people of Ys the truth about their planet, is in charge of Ys' destiny. However, as Adol's strength rises, he could be the one to save—or destroy—Ys.