Crossing over into another world and time after a freak accident, Korean highschool girl Sabina is taken in by a duke of the Crentia kingdom— only to soon be offered up to the ugly old emperor as a concubine. When the king is killed by a mysterious assassin, Sabina must face the poisonous circle of other candidates in a battle for the royal seat. Can she attract the loyalty and affection of the men and women she needs on her side to survive? Based on the hit series of novels.