After the parents of young Shen Yi of the Shen family die unexpectedly, his biased grandmother presides over the division of the family estate. He and his three younger sisters receive nothing but a dilapidated thatched hut and an old water vat, while Shen Jianguo's family, the eldest branch of the family, constantly makes life difficult for them. At their most desperate moment, Shen Yi unexpectedly discovers a spiritual spring hidden at the bottom of the water vat. Its water can rapidly ripen crops, enhance the medicinal properties of herbs, and improve people's physical constitutions. With the power of the spiritual spring, Shen Yi grows medicinal herbs and vegetables of far superior quality and earns his first money by selling agricultural produce, gradually improving life for all four siblings.