Hungry little Tuantuan understands a message from a little yellow bird and stops a car to save Cheng Jingchuan. By chance, she finds her way into a warm and loving home. Touched by this innocent and kind-hearted little girl, Cheng Jingchuan and Xu Anqing gradually go from caring for her out of sympathy to sincerely accepting her as family. As her animal friends bring her clues one after another, Tuantuan uses her innocent words to expose lies and help elderly people in trouble. She also teaches her family that the most precious blessings are never gold or silver treasures, but kindness, care, and protecting one another.