Reborn on the very day of her wedding, Lin Wanqiu refuses to let her husband's family scheme against her and seize her dowry ever again. Armed with her ledger, she exposes the family members stealing grain, separates household and personal accounts, and establishes strict family rules. She then starts a side business selling pickled vegetables to increase the family's income. Along the way, she takes on her greedy sister-in-law and disciplines her wasteful younger brother-in-law, determined to turn the family's ways around. From an oppressed newlywed, she becomes the household head whom everyone respects and trusts. Using her ledger as a weapon, she catches internal thieves, keeps outsiders from interfering, and lays down clear rules. She leads the whole family into the pickled vegetable business. Her husband changes for the better, the elders come to respect her, and the younger siblings learn to behave. The entire family finally abandons its old bad habits and follows her lead in building an honest, hardworking life.