Five-year-old Er Niu is smart and clever. Although her family's background is ordinary and her parents have gentle and kind dispositions, making their family's days hard-pressed and tight, she is always optimistic and sensible. Facing difficulties in life and family conflicts, under the care and correct guidance of her elders, Er Niu studies hard and uses her wits, accompanying her parents to find ways to improve their lives. From raising chickens and making food to running a small business, the family slowly gains a firm foothold through diligence and integrity. In her growth, Er Niu also learns responsibility, gratitude, and commitment, finally leading her family step by step into a steady, happy, and good life.