I am Liu Shuang'er, the most inconspicuous concubine of the Liu family. My mother died young in Zhuangzi. Since I was a child, I have lived with my nanny in a broken house in Fengyuan. I have suffered a lot. I thought I would just marry an ordinary person and live a careless life. Unexpectedly, my sister-in-law's fiancé Mr. Liang Xiaohou suddenly suffered a misfortune, and my sister-in-law refused to marry until she died, which turned out to be an unknown turning point in my miserable life.