Kill the Fake Prince? I Stole a Family and Became an Emperor!

Lu Xuan traveled to another world and was pushed to the guillotine at the beginning - taking the place of a fake prince to marry the future crown princess! A certain death situation? [Destiny Stealing System] is activated, and you can seize the luck of the future emperor first at the beginning! [The civet cat exchanges for the prince? I directly stole the true dragon's destiny! [Blessings and misfortunes depend on each other? I turn misfortune into good fortune, and disaster into opportunity! [Photographic memory? My understanding is incredible, and I can see everything at once! He started as a substitute, cut off the princess Hu, subverted the court, and made progress step by step. All the opportunities, power, and even loyal ministers that the true prince liked were stolen by him. The prince Zipao, the peerless Gu Immortal, and the future Martial Ancestor, who had tried to turn the tide before their collapse, all bowed their heads.