Hun, the carefree prince of Taesa Kingdom, is more interested in his lover than the affairs of the state. But his soon-to-be wife, Ryuha, has a different agenda. Using her political savvy, Ryuha sets out to win Hun's favor and educate him on the political intricacies of their world. However, the imperial concubine and her son have their own schemes in play. As Ryuha navigates through treachery and deception, Hun faces his growing attraction to her and an eerie sense of familiarity. In the midst of it all, a mysterious tragedy from the past resurfaces, connecting the couple in unforeseen ways. Can Ryuha use her intelligence and poise to protect Hun and secure her place in the palace before it's too late?