As one of the territories where the Great Yin Imperial Dynasty's rule was weakest, the Huainan territory could definitely be considered to have a profound heritage.
Among the 10 Great Grotto Heavens Sacred Lands, two of them were located within the Huainan territory. Every ten years, when they opened their doors wide to the public, tens of millions of people would traverse mountains and rivers to converge in the Huainan territory, making it a place many cultivators regarded as a cultivation holy land of the Primal Chaos Realm.
It was because of the two Grotto Heavens Sacred Lands that the Great Yin Imperial Dynasty only retained a symbolic capital city and the position of territory lord in the Huainan territory, leaving the rest to be governed by the two powerful Sacred Lands.