Nan was born in a family of heather, a scholarly family. In the Song Dynasty, the Nan family was based in Wenzhou, a land of plenty. However, the village where nan huaijin was born is not rich, but a poor place where various natural disasters often occur. Therefore, when the Nan family spread to Nan's grandfather generation, it began to decline.
Nan was born in a scholarly family. Although his family has declined since birth, the decline in material aspects does not mean the decline in spiritual culture. Therefore, Nan received a strict education from an early age. At the age of seventeen, he has dabbled in hundreds of schools and even studied calligraphy, history, medicine and many other aspects.