The Old Lady Goes Wild

Transmigrating as a Down-and-Out Noblewoman, Getting Pregnant by Someone Else, and Secretly Giving Birth

The Female Lead Transmigrates To Ancient Times And Develops Technology And Agriculture To Improve People's Livelihoods

For example, high-yield crops, papermaking, farm tools, publishing newspapers, opening schools, and so on. If there’s a male lead, I’d prefer him to have a fairly high status so he can serve as a useful tool for the female lead. A story without a male lead would also be fine.