The Reborn Mistress Is Killing Everyone!

In her previous life, she was a Daqing female general. She was willing to be trapped in the back house and work hard for the sake of Lord Marquis, spending her whole life working hard. But she didn't know until her death that the Marquis only married her to consolidate the Hou family. He said that they would be together for the rest of their lives, but he used the money she earned to raise an illegitimate child in a brothel. He also exchanged the aunt's children for her children to enjoy her love and education. However, the child killed her with his own hands after becoming the number one scholar in the dynasty... She wants them to pay the price for a new life!