Huang Fengying picks up a little girl named Tuan Tuan on a rainy night and takes her in to care for her. Tuan Tuan can understand animal language, helping discover chestnuts and avoid danger. Relying on honesty to manage mountain goods, Huang Fengying goes from being pressed on prices to selling independently, gradually opening up sales channels in the county town. Facing those who come to recognize her, she prudently verifies and ultimately continues to protect Tuan Tuan. The story showcases kindness, diligence, and family affection.