A five-year-old orphan named Yaya lives in Hehua Village, which was cut off by a famine. She accidentally travels between the ancient village and the modern market with the purse left by her mother. She brought back rice, flour, salt, meat, medicines, clothing and other supplies, and sold wild vegetables and handmade baskets from the mountains to modern times in exchange for money and food. With the help of kind-hearted people such as Cao Xiulian, she led the whole village to cultivate land and weave to make a living.