Reborn to be married, the mistress of the Marquis's Mansion is so sweet

Lin Wan and her elder sister Lin Fu were both reborn in the previous life. Her elder sister snatched her marriage from the Marquis's mansion, but she lived a miserable life and was unhappy. However, the poor student that her elder sister didn't want became the top scholar in the imperial examination and became the emperor's confidant and a high-ranking official. She also became the envied lady of the imperial court. Unexpectedly, just because she didn't agree to support her elder sister, she was pushed into the pool and drowned. Her biological mother watched coldly, with only her elder sister in her heart. In the next life, her elder sister designed to change their marriages and married a potential stock from a poor family as she wished. She gave the position of the young lady of the Marquis's mansion to Lin Wan. Lin Wan chuckled, it was easy to get. Change it, Lin Fu didn't...