The drama tells the story of a nerdy civil servant, the Secret Censor, and the ambitious, nosy, and lustful Lady Qibie, who investigates a case of corrupt officials and explores the truth of a huge conspiracy. Ok Taec-yeon will play the role of the Secret Censor Lion, the youngest deputy editor of Hongbunkan who passed the imperial examination. He has a beautiful appearance and gentle eyes, and is a heroic character with everything. Kim Hye-yoon will play the role of Kim Cho-yi, a new woman who breaks traditions. She is a realist who believes that "you can get a divorce while you are still alive", and she is a person who ends the divorce lawsuit in a chic way and brilliantly opens the second act of her life.