I Dress up as the Eldest Sister from a Poor Family, and I Support My Family by Doing Business

[Time travel + farm girl + female officer rushing to take the exam + making money and building a career + taking advantage of the rough guy + knocking down the crazy batch of redemption] Once she traveled through time and became a poor girl living in the mud, she sent her younger sister to join the officialdom, start a business, and strive for a bright future.