He Betrayed Me, So I Married His Uncle

Stephanie is a doctor in the twenty-first century and she wakes up in the body of an ugly woman in an ancient court, engaged to a prince. She wants out of that engagement, and the prince and her two-faced younger sister have already been betraying her behind it. She breaks it off on the spot, in public, and puts the two of them to shame in front of everyone watching. Then she marries the Ninth Prince, Theodore, the most powerful and most feared man in the kingdom. They work as a pair against enemies inside the palace and outside it. Theodore takes the throne and Stephanie is crowned empress.