Xu Qingyao slipped into a sadistic novel and became the cannon fodder sister of a vicious female supporting character. In the original book, she was always against the heroine, and was eventually killed by the hero himself. But Xu Qingyao, who had just come in, looked at the wary wolf cub male protagonist in front of him and silently tore up the script. What about future tyrants? Now he is just a poor little man who lacks love. Not only did she not frame the heroine according to the plot, but she began to use modern psychological knowledge to provide psychological counseling to the male protagonist, teach him emotional management, and take him to plant flowers and grass. The vicious female supporting character Su Wantang made several attempts to frame her, but Xu Qingyao easily solved them with elementary school math Olympiad questions. When everyone thought that Xu Qingyao was pitifully stupid, she quietly won the hearts of the civil and military officials in the court. Until that day, the taciturn male protagonist cornered her in a corner and said in a hoarse voice: "Sister, they said you want to marry someone else?" This is a healing story about a woman who travels through nine years of compulsory education to reduce the dimension of knowledge to attack the ancient times, and at the same time cultivate a future tyrant into a loyal dog.