Synopsis：In order to avenge her sister, she, who was originally a general, had to become a concubine. From now on, the harem became her battlefield! She gave up the one she loved, became the emperor's favorite concubine, and got rid of the arrogant and domineering imperial concubine. In the end, she found out that the one who really killed her sister was the emperor who always said he loved her! But she seemed to have fallen in love with him.........