Princess's Happily-ever-after Marriage

She is the top killer in the modern world. However, she one day travels to the past and is reincarnated as a loser, which is the unfavored daughter of the former Zhenbeihou.
What? Her husband is a man that even the emperor is frightened of—the number one fighter in the country that all men are afraid of and all women are crazy over—Prince Ming?

They have been married for two years but have never met before? Who said that she has to stick to the rules after getting married? Check out how she uses the program to cheat, defeats the other bitches, and captures the hearts of handsome men from all walks of life.