Aeri is a 19-year-old skilled thief who was recently revealed to be Princess Naerium of Yusan. She is highly capable and deeply loyal to her chosen family, despite their current distrust of her. Secretly harboring the Sands of Time, a powerful magical relic, she faces the isolation her abilities and royal lineage bring while adjusting to the completely different cultural expectations of women in Khitan.

Mikail is the former royal spymaster of Yusan. Born in Gaya, he possesses exceptional combat skills and a strategic, ruthless mindset shaped by his traumatic past. He attempts to balance his affection for Euyn with his pragmatic approach to their mission, frequently weighing the morality of killing against the political necessity of deposing King Joon.

Sora is a highly trained poison maiden from Yusan who survives through her mastery of toxins and seduction. Born into a lower-class family, she was forced into indentured servitude and weaponized against her will, leaving her with a profound sense of guilt over the lives she takes. Her primary drive is to rescue her sister from a similar fate of servitude.

Euyn is the 23-year-old crown prince of Yusan, traveling under the alias Donal. An expert marksman with a crossbow, he holds a pragmatic, often ruthless view on violence and political strategy, creating friction with his companions. He harbors multiple secrets, including doubts about his own royal lineage, which continuously complicate his romantic relationship with Mikail.

Royo is a heavily muscled strongman and fighter from Yusan. Raised in poverty, he has a rigid sense of right and wrong, making him deeply unforgiving of betrayal and deception. He wrestles with his growing feelings for Aeri while remaining furious over her lies regarding her royal identity, prioritizing honesty above all else.

Tiyung is a 22-year-old prince of Yusan and the son of the powerful Count Seok. Imprisoned by King Joon, he endures harsh conditions while reflecting on his past actions and seeking redemption for the lives he has taken. Despite his royal upbringing, he shows deep empathy for those in lower classes and longs to be reunited with Sora.

Queen Quilimar is the 33-year-old ruler of Khitan, originally from Yusan. Forced into marriage with the Khitanese king, she ruthlessly seized power and now rules with a heavy hand, enforcing a strict Rule of Distance to prevent assassinations. She is a formidable political player who despises her brother, King Joon, and actively prepares her military for conflict.

Seok is the powerful Count of Gain in Yusan. He is a cruel, manipulative nobleman who exploits the vulnerable, forging documents to force young women into indentured servitude. His actions actively destroy the lives of lower-class families to increase his own wealth and political standing.

King Joon is the ruthlessly ambitious ruler of Yusan. Armed with the Immortal Crown, he seeks to collect all the sacred relics of the world to become the god-like Dragon Lord. He is a master manipulator who uses his own children and innocent hostages as pawns to provoke a continent-wide war.

Ailor is a 40-year-old retired king's guard and Mikail's adoptive father. Imprisoned in Yusan, he provides a stabilizing, philosophical presence in his shared cell. He carries the heavy burden of having followed unethical orders during his military service and encourages others to seek the redemption he believes he can no longer attain.

Fallador is an exile from Gaya who operates as a crucial ally and informant in Khitan. He shares a similar personality and cultural background with Mikail, providing essential updates on the political movements within the kingdoms.

Gambria is a formidable Gayan woman living in Khitan with her wife, Lyria. Though physically small, she possesses immense presence and a deep understanding of Khitanese politics, stemming partly from her past relationship with the nation's queen. She serves as a vital, if occasionally flawed, source of intelligence.

Ambassador Zeolin is a Yusanian diplomat stationed in Khitan. A dignified but self-serving man in his late fifties, he actively plots to advance his own political standing, playing both sides of the brewing conflict between the nations. His cowardice makes him susceptible to physical intimidation.

Luhk is a devoted priest serving at the Temple of Knowledge in Khitan. A highly educated man fluent in all languages, he values the preservation of history and magic above his own survival, offering crucial information regarding magical relics and royal lineage.

Zahara, previously known as Hana, is the acting royal spymaster of Yusan. She utilizes her skills as a former poison maiden to survive the dangerous political environment of King Joon's court. She balances her official duties with a personal mission to protect the lives of those who have aided her family.

Nayo is Zahara's younger brother, recently freed from an indentured servitude contract. He leverages his freedom to work alongside his sister, infiltrating Yusan's military structure to repay the debts owed to those who saved him.

General Vikal is a tall, imposing woman who serves as the highest-ranking military officer in Khitan. She embodies the progressive gender expectations of her country, balancing her fiercely protective military duties with her genuine devotion to the queen.

Daysum is Sora's beloved sister. Her tragic fate of being forced into indentured servitude at a brothel serves as the primary motivation for Sora's vengeful actions against Yusan's nobility.

General Salosa is a high-ranking military leader from Yusan. He aligns himself with political conspiracies to destabilize rival kingdoms and eliminate perceived threats to his country's dominance.

Bay Chin is a Yusan count and the powerful head of street gangs. He uses his wealth and influence to destroy the lives of those in the lower classes, earning the lethal enmity of his victims.

Dia is a tiny, orphaned moon owl rescued by Aeri. Beyond being a simple pet, the bird displays remarkable intelligence, acting as a scout and warning system for her caretakers while symbolizing hope and resilience.

Uol is the revered priest-king of Wei. Considered a living god by his people, he rules his kingdom while relying on designated royal bearers to wield deadly magical relics on his behalf.

Lyria is a Marnan woman living in Khitan with her wife. She remains closely tied to her underground homeland, stepping in to aid her spouse when political intelligence leads to dangerous consequences.

Chul Inigo is Sora's father. A commoner who fiercely resisted the nobility's attempts to enslave his daughters, his defiance ultimately cost his family dearly under Yusan's oppressive legal system.

Prince Omin is the deceased son of King Joon. He was a violent and predatory royal who terrorized the women in his household before his untimely demise.