The unique structure of the nearby mountains along with the climate and the forces of nature caused Nightrain City to be a place where rain clouds commonly gathered. Nightrain City was on the mountainside, but the origin of this rather poetic name lied in the fierce rainstorms that typically came at night when it was colder.
Militarily speaking, there was a height advantage offered by this city's construction, and the rainy weather gave it an advantage in defence. Slippery mountain slopes would make it difficult for anyone to use siege weaponry, after all. Under Halent's command, the entire nearby mountain was being carved out by humans, and this fortress city was expanding at a fearsome rate. Judging by its current rate of expansion, it would likely become a peerless impenetrable fortress within the next two years.