The Gremory Clan has a territory that is about the same area of Honshu in Japan, and also has a vast number of castles for its kin. A very rich territory, it also has a developed industry. In the clan's territory is an area with a well shaded forest and a mountain range filled with high mountains. One of these mountains is taller than the highest mountain in Japan, Mount Fuji, with an elevation extending 4000 meters. There is also a huge lake.