Fu Wantang, the concubine of the Fu family in Kyoto during the Ning Dynasty, had her mother die young and was suppressed by her aunt Wang and her eldest sister Fu Mingwei in the name of "rules" since she was a child. She did not follow the routine of house fighting and counterattacked with pranks such as "adding chili powder to rouge for her eldest sister", "replacing her aunt's Buddhist scriptures with storybooks", and "helping her eldest sister introduce jealous young masters". Instead, the villain was embarrassed and the whole family couldn't laugh or cry. As the plot progresses, her optimism and "crooked tricks" attract Gu Zhaoheng, the eldest son of the Duke of Jingguo. The two work together to use "prank + sincerity" to resolve conflicts such as the Fu family's business crisis and the visit of their aunt and relatives. In the end, Fu Wantang wins the recognition of her family and becomes the "house fighting mascot" of the Fu family. She marries Gu Zhaoheng and starts a funny and happy life. (Highlights: Use pranks instead of quarreling, and achieve a counterattack in a house fight in a relaxed way. The highlight is that the protagonist "does not act according to common sense" and allows the villain to reap the consequences, and the reader relieves stress throughout the process.)