My Illegitimate-Born Mother-in-Law Loves Causing Trouble, So I Brought Back the Legitimate Eldest Daughter to Run the Family

I was once the most distinguished young lady in the capital. My father and brothers all held positions among the Three Excellencies, and our family was firmly aligned with the Crown Prince. Who could have known that a palace coup would come out of nowhere? The late emperor died suddenly, the Crown Prince was deposed, and a prince from a distant fief seized the throne. To elevate his mother’s family, the new emperor arranged for me to become the second wife of his cousin, a son born to a concubine. With a mother-in-law who had started out as a maid, my life was utterly miserable. On our wedding night, she barged in wearing gaudy nightclothes, claiming she wanted to personally teach us the ways of married life. I politely asked her to leave, but she refused to give up and deliberately hid outside the door to listen in. Barely a month after the wedding, she brought her own niece over from her hometown in the countryside. She called it “helping the family grow.” My husband had no mind of his own and went along with everything she said. I merely tried to talk him out of it, and she ran to my family’s doorstep, weeping and wailing, threatening to kill herself. She said I was jealous and wanted to make sure her son had no heirs! With no other choice, I climbed up to Baiyun Temple in the middle of the night and brought back my elder sister-in-law, the legitimate eldest daughter of the family. It was time to put this demon in her place!