The Evil King's Exclusive Favorite: Secret Agent Crazy Concubine

She, an internationally renowned killer in the 21st century, once traveled through time and became the ugly, mentally retarded, good-for-nothing eldest daughter of the Yun family! The fiance, together with the concubine of the Yun Mansion, led others to insult her! She actually wants to sell the maid who loves her most to a brothel? Calculating? Framed? Insult? "Are you going to be a child who complains to your parents? I'm not interested! I just want them to pay the price!"