Divided by the surface between them, the water and air dwellers of Tōrua have been at war for living memory. Cris, a young water person headed for compulsory military service, never expected to meet BriAnn, the only daughter of his enemy. But when a mysterious object tears through air and sea, both of their lives are altered forever. Their race to uncover what has happened on their planet, and off it, will take them far beyond their homes and the air and water of this current planet.