"Tell me more." Roland could not help becoming interested in Edith's idea.
"The terrain of Hermes is very unique. There's a slope around this area of the Impassable Mountain Range. The old part of the holy city is located at the lower end of the slope, while the new part is built on a plateau on the higher end. The environment there is very harsh. Although there're natural barriers that keep demonic beasts away, the highland isn't really suitable for living, let alone for cultivating and farming. Thus the food and supplies of the new holy city have to be provided by the old one, despite the fact that the latter's mass land can only produce enough supplies for the 20,000 or so people living downhill."