Orphan Rin sells potions in her adoptive parents’ shop. A harsh life promises to become a nightmare, because Rin is facing an unequal marriage. Her only chance to avoid this fate is to pass the exam for the military academy of Synegard. But achieving her goal turns out to be only the beginning of a chain of trials.
The Federation of Mugen has unleashed war, and Rin will have to forget the humiliations she endured—fighting side by side with the very people who wronged her, tasting betrayal, and making a choice: remain human, or become a shaman—a guide for a cruel god.