My Husband Is Gentle and Cowardly, but Actually He Wants to Imprison Me and Seize Power.

The female protagonist + time travel + power plotting to seize the heir + marriage first and then fighting + the male protagonist's darkening and imprisonment + the female protagonist's later counter-attack + infrastructure ascension to the throne (no cp) Ye Qingge traveled through time. Bad news: She has become the most famous playboy princess of the Fengqian Dynasty. Even worse news: As soon as she came in, she found that her gentle and beautiful husband seemed to want her to die soon. The original owner had a bad reputation in the capital. He took advantage of the Empress's favor to do whatever he wanted, drank wine, fought with crickets, and insulted his husband. He lived like a complete idiot. Everyone felt that the second princess Ye Qingge was worthless except for her face and her divine favor. But no one knew that the shell had been replaced with a modern pin crown core. She is sweet-tongued, good at reading people, good at negotiating, and good at finding a way out of the worst situations. So while pretending to be a fool to save her life despite her reputation as a playboy, she followed the marriage taxes, marriage certificates, medicine routes, and business routes to uncover layers of dirty nets. The more I checked, the more I found—— The empress' serious illness was not an accident, her car accident was not an accident, and the famous eldest princess was not as gentle and harmless as she appeared. And her husband, who always looked down upon her and looked down upon her, was the knife that was hidden the most. He wanted to help her up. I also want to control her for life. Unfortunately, Ye Qingge dislikes being someone else's chess piece. Later, she ascended to the throne and held the world in her hands, building roads, opening rivers, adjusting household registration, collecting marriage certificates, and supporting people's livelihood. I finally understand that power is both the most tempting and the coldest. She has never loved anyone in her life. But she allowed more people to finally live in peace.