On the very first day of the new marriage, the daughter-in-law sets down four household rules for getting along, and the son fully takes her side in support! Mother-in-law Zhou Yulan simply decides to let go and halts all financial support to the young couple. Left without their parents as a safety net, the young couple becomes overwhelmed by debt and domestic chores. When the father-in-law accidentally falls and gets injured, the son coldly brushes it off, leaving the elderly couple heartbroken as they return to the countryside. Relying on their own skills and the help of villagers, the older couple builds a stable and dignified old age. The desperate young couple pays a visit pretending to show filial piety, but the mother-in-law holds her ground and returns the original rules right back to them!