One is a princess who was abandoned by her country, and the other is a prince who was abandoned by his father. When two people who are deeply scheming and hurt both physically and mentally meet, in addition to joining forces, they also feel a little sympathy for each other.
She helped him become a high-ranking king, wipe out all the rebels and traitors, and even more decisively kill in the harem without mercy, just for the promise he made to her.
However, when sympathy turned into deep love, she was willing to give up her freedom for him and stay in the harem, where she was deeply in love with his emperor and empress.
Until the appearance of that person broke all her beautiful illusions, and the darkness of reality was like a swamp, pulling her into an endless abyss until she was overwhelmed by sadness...