Slave's Sword is the story of Luna, a former aristocratic knight of the Empire. Now living peacefully as a mercenary, she quickly becomes involved in a scandal that results in her enslavement. Can Luna recapture her freedom and escape from her predicament?

Morally offended by the actions of her own empire, Luna of Maldonia abandoned her status, rank and family fortune to make a humble life in the Free City of Selway.

Luna lived peacefully in Selway as a mercenary but, she was embroiled into a situation that resulted in her slavery.

Can Luna seize her freedom for a second time and smash the ambitions of great evil all around her?