I Picked Up a Tyrant to Farm, and Now I Have Money, Kids, and Power

Infrastructure building + System + wish fulfillment + family squabbles + Back to Field + two strong leads (Creating a new city in an ancient post-apocalyptic world) Wang Xiaoxiao, a leading figure in the medical field, transmigrates. She transmigrates into an ancient wasteland. The good news: The ancient Wang Xiaoxiao is tall, strong as an ox, and young. The bad news: She has three children and a terrible in-law family who bully and exploit her. The first thing this medical luminary does is deal with her mother-in-law's family and rescue her daughter, who has been sold. Relying on her own abilities, she joins the Stone Stronghold and leaves her in-laws far behind. Wang Xiaoxiao leads refugees in building a city, farming the land, planting trees, and developing new inventions, creating a whole new world. Her in-laws regret everything and wag their tails as they beg for forgiveness. Sorry, who are you? Wang Xiaoxiao brings home a handsome man she found, only to discover that he is a tyrannical prince who is remarkably good at farming. Life gets better and better, but then she discovers a shocking secret. It turns out this disaster was all caused by human hands. They have damaged the ecosystem, and an even greater disaster is on its way.