A Marriage Swap into the Prince's Manor: The Mistress Works Herself to the Bone in the Inner Household

[Marriage Swap + Political Intrigue + Strong Female Lead + Rebirth + A Matriarch's Rise to Power] Xie Zhichun and her legitimate younger sister, Xie Yushu, are both reborn. In their previous lives, Xie Zhichun was forced to marry a poor scholar, with a shabby dowry and a meager wedding banquet. Xie Yushu married into a princely household as the wife of its heir, with a lavish dowry stretching ten miles, dazzling everyone. The whole city said the two Xie sisters were worlds apart, one in heaven and the other on earth. But in the end, Xie Zhichun's husband became prime minister, and their children all rose to positions of power. Wherever she went, people treated her with deference and sought her favor. Xie Yushu, however, was blamed for driving the heir and his beloved concubine to their deaths. The princely household spurned her, the princess consort regarded her as an enemy, and she was imprisoned in the estate until she met a tragic end. Xie Zhichun suffered in her youth and enjoyed prosperity in her later years. She worked hard her whole life, only to be stabbed by Xie Yushu's jealous, resentful hand at the very end, dying with her name in disgrace. Fortunately, Heaven took pity on her. When she opened her eyes again, she had returned to the time when she was a young woman discussing marriage. This time, her younger sister snatched her intended match first, eagerly marrying into poverty to suffer and toil, and pushed the position of the heir's wife onto Xie Zhichun instead. Friends and family all said fate was unfair, but Xie Zhichun only smiled serenely. Was fate unfair? She thought it could not have been fairer. Xie Yushu thought she'd landed a prize, but she had no idea that in her previous life, it was Xie Zhichun who painstakingly forged documents and schemed to send that useless poor scholar to the top. Perhaps Heaven felt she had suffered too much in her previous life, so it had specially sent her the position of the heir's wife, where she could enjoy an easy life. If so, why shouldn't she accept it?