The series adapts the core premise of Les Liaisons dangereuses through the lens of the 2003 Korean film Untold Scandal, featuring an all-Korean cast in a period-accurate setting. Key characters such as Lady Cho, her cousin Cho Won, and the virtuous widow Hui-yeon drive the narrative through a seduction wager centered on desire, manipulation, and honor, with elements like concubines for heirs, libertine playboys, chaste widows, family honor, and royal orders remaining faithful to classic conventions rather than modern reinterpretations. The female lead's frustration with Confucian norms serves strictly as in-universe motivation for her actions and the central wager, functioning as an organic plot driver within the story's historical logic instead of activist framing or systemic-oppression lectures. This approach keeps thematic centrality focused on personal reckoning and emotional manipulation drawn directly from the source, resulting in minimal progressive messaging and preserving the entertainment value of the historical drama format.