Nantai mountain, located more than 200 miles south of the Imperial City, is named after its proximity to Nanguang city and Taiqing city.

Nantai mountain is a big natural barrier outside the Imperial City, with high peaks, towering in the sky, stretching for miles and circling around. Unfortunately, in the case of national unity, world peace, no princes competing for supremacy and no fiefdoms, this great natural barrier has become a big obstacle for all parts of the south to transport goods to Beijing and people to the imperial city. If you don't want to pass through the dangerous and narrow mountain canyon, you have to expend your energy, lengthen...