During an enemy raid on the burning castle, Xueling gives her life to shield the Emperor, Ren Yunlan. Despite being one of his concubines, she was known as the "Villainess of the Harem" and was always bickering with him. In truth, however, she was deeply in love with him.

As her consciousness faded, she prayed for his happiness—or so she thought! To her shock, she is reincarnated as an entirely different person. Determined to be of use to Yunlan in any way she can, she takes the new name Xuehua and begins serving him as a member of the Royal Guard.