The heroine Shen Zhaoning is reborn and returns to the key node of the family's power transfer - the marriage banquet where she is designated as a "gentle, courteous and thrifty" marriage partner. She gave up her survival route of forbearance and used her "little devil" nature to strike back with precision: she used her sister-in-law's most cherished reputation to set up a trap, and leveraged her husband's most dependent power to counterattack, leveraging the entire Hou family's interest chain. There is no golden finger, it all depends on the familiarity of human weakness, the ultimate use of the rules of the house, and the active manipulation of the rhythm of public opinion. From the starting point of the maid's identity, she overthrows the hypocritical mistress, deposes Bai Yueguang's first sister, and forces the black husband to retreat. In the end, she establishes her own female household, takes charge of the middle husband, chooses a good match, and completes her fateful transformation from "disposable chess piece" to "rule maker".