The intelligent and determined 19-year-old Queen of the Antae and Batiara, caught in complex political circumstances, making strategic moves to secure her position and safety.

A soul bound to a mechanical bird after being captured by an alchemist, who forms a unique relationship with Crispin while navigating the constraints of her existence.

A resourceful and resilient Inici slave at a Posting Inn who seeks freedom from a life of bondage, leading to a significant transformation alongside Crispin.

A large and quiet Inici servant with a scar and a strong sense of loyalty, who becomes a steadfast ally to Crispin through acts of bravery.

A strong and tenacious tribune, who, despite an initially hostile encounter, builds a noteworthy friendship with Crispin characterized by mutual respect.

A brilliant and strategic figure who, through careful planning and intellectual acumen, climbs to the heights of power in the Sarantine Empire.

An exceptionally intelligent and beautiful woman who rises from her position as a dancer to become the Empress, skillfully navigating court politics.

An enigmatic and powerful alchemist known for his advancements in binding souls to machines, who ultimately plays a vital role in assisting key figures on their journeys.