In a world where fairies and humans live among each other, some humans have gained the ability to summon a fairy partner as a weapon. After a long war, many of these users, known as “Fairy Soldiers,” reintegrated into society in a variety of ways, from government service to organized crime. Maria is searching for her long lost childhood friend, Veronica, and in the process ends up gaining the power to summon her own fairy. Faced with potential imprisonment, she joins the government organization “Dorothea,” tasked with responding to fairy related crimes.