In Qingshi Village deep in the great mountains, Lin Changgeng takes the lonely and helpless little girl Tuan Tuan home. Although the family lives a simple and impoverished life, they give her full care and affection. The sensible and cute Tuan Tuan also repays her family with a sincere heart, bringing laughter to ordinary days. Facing difficulties in life, the Lin family insists on diligence and honesty in dealing with others, developing mountain goods cultivation and processing together with fellow villagers, making their life better and better through mutual help. The warm companionship of the family converges into a story of the whole village striving together and harvesting happiness.