The Ugly Consort's Comeback Plan

Molly is the legitimate daughter of a noble house and the wife of Prince Yale. Her husband's concubine accuses her of sleeping with another man, and Yale believes it. The concubine then forges an order in the prince's name and has poisoned wine sent to her. At that moment a scientist from the present day dies in an accident and wakes in Molly's body. She wants out of the marriage. Yale is cold to her and the concubine has the household's ear, so Molly uses what she knows of science to work her way into the favor of the Emperor and Empress, exposes the prince and the concubine in front of the court, and pushes for the divorce. She is not looking for love from any of it.