On the Run from Famine, the System Makes Me Empress

Shen Yihuan and her family of three transmigrated into the fictional Great Jing dynasty. Great Jing was plagued by disasters and warfare, its government was corrupt, and its people lived in misery. The female lead's Empress System helped her rise from humble beginnings. After taking control of a small border city, she focused on building it up: promoting agricultural technology, expanding commerce, reforming the imperial examination system, repelling foreign invasions, eliminating rebellious vassal princes, and defeating other rebel armies. In the end, she overthrew Great Jing and founded a new dynasty.