Sabina, a Korean high school student, is transported to a different era and dimension due to a strange accident. She is saved by a duke from the Crentia kingdom, who offers her as a potential concubine to the emperor, who is unappealing and aging. The unforeseen death of the monarch suddenly puts Sabina in a dangerous power struggle against deceitful adversaries who are battling to take over the throne. Can Sabina successfully build confidence and affection from those who can assist her in surviving the treacherous game?
