Forbidden Quest

A keen-eyed artisan of text and image who observes the court's art world and uncovers illicit copying networks. His curiosity about art and risk-taking nature push him to reveal the truth, even at great personal cost. He demonstrates a mix of restraint and boldness in navigating royal politics.

A principled inspections officer who refuses to file a false appeal, balancing duty with personal integrity. He is drawn to art and the old man’s story, and his courage ultimately leads him to expose conspiracies, even as he faces brutal consequences.

A pragmatic shopkeeper who facilitates the distribution of Yoon-seo's indecent book, partnering with the artist and other merchants to navigate censorship. He is loyal to his associates and willing to take risks for profit and survival.

A political figure whose family has clashed with Yoon-seo's lineage. He embodies the corruption and manipulation of power within the court, driving the motive for false accusations and retaliation.

A powerful ruler whose desires drive palace intrigue. He is intelligent and capable of mercy, but his authority is tested by the crown's conspiracies, the queen’s influence, and the hero’s moral choices.

The legend of the court's competing authority, who assesses truth and displays a stern sense of justice. He plays a pivotal role in the turning points of the plot, as his decisions affect the protagonists’ fates.

A family patriarch cautious about preserving honor while resisting corrupt demands from the court. His stance influences Yoon-seo’s choices and his resolve.

The lead character, a morally driven inspector who becomes a bulwark for truth and artistic curiosity. His passions for art and affection for Jung-bin complicate his duties and outline a tragic but hopeful arc.

A key servant in Jung-bin’s entourage who manipulates information and navigates palace politics. He reveals his own secret affections and plays a dangerous game between loyalties.

The king's concubine who wields cultural influence and becomes entangled in the lovers’ fate. Her ambitions collide with loyalties, stirring deep personal and political tensions.

A court eunuch who facilitates Jung-bin and the king. He is a minor but pivotal figure in maintaining order and enforcing palace etiquette.

An additional eunuch loyal to Jung-bin who becomes a dangerous enforcer. He embodies the palace’s rigid control and the peril of dissent.