When war orphan Rin aces the Keju, the Empire-wide test to find the most talented youth, she earns a place at the most elite military school in Nikan. But her struggles are just beginning. She soon discovers she possesses a lethal, unearthly power—an aptitude for the near-mythical art of shamanism. Rin's power might be the only way to save her people from the Federation of Mugen, who have occupied her homeland for decades. This is a brutal tale of power, revenge, and the human cost of war.