In Japan, the series of earthquakes beginning on August 10, 2002 caused the explosion of Mount Fuji, and its consequences: a Japan, where half of the population has perished and whose main island, Honshū, is cut in two, and which must to survive appeal to the United States and China. Years later; two Japans coexist and many Japanese live as refugees in makeshift camps around the world. The south area is controlled by the United States, and the north area by China, with capitals in Fukuoka and Sapporo, respectively while Tokyo is under a UN mandate. Tensions go high in various Japanese refugee camps overseas between the residents of countries that wish to help them and those who promote kicking them off due to taking local jobs and wasting resources.