New daughter-in-law Lin Wan visits for the first time and confronts father-in-law Chen Jianguo's outdated family rules. Faced with his bad habits and patriarchal demeanor, she is neither arrogant nor humble, refuses to blindly endure, punctures his farce of faking illness and making a fuss, and preserves evidence to protect her family. Mother-in-law Liu Guifen has been a free babysitter all her life and suffered endless grievances, but under Lin Wan's encouragement, she resolves to live for herself. Husband Chen Yang gradually awakens from fence-sitting and chooses to uphold fairness. After making trouble and threatening multiple times, the father-in-law only begins to reflect after living alone; the eldest sister lives off her parents and disrupts family affairs. The family casts aside the old notion of male superiority over female inferiority, sets up new family rules, learns equal respect and mutual sharing, and opens up a brand-new family life.