After Prison, I Became My Brother-in-Law's Beloved

The Sheng Group and Su Group are famous rivals in the business world. The Sheng family's second branch daughter, Sheng Xinran, caused a car accident that killed Sheng Xia's parents to seize control of the company. The two Su family sons, Su Ruichen and Su Yibai, both loved Sheng Wan, but Su Ruichen forced an engagement. To get Su Ruichen and prevent Sheng Wan from marrying into the Su family, Sheng Xinran blackmailed Sheng Xia into taking the blame for a crime, then arranged for men to assault Sheng Wan, leading to her death. Three years later, Sheng Xia is released from prison and learns the truth from Su Yibai. She seduces Su Ruichen using her resemblance to her dead sister, ruins his wedding to Sheng Xinran, and begins her revenge plan.