On August 10, 2002, a massive earthquake suddenly struck the Tokyo metropolitan area, and the eruption of Mount Fuji triggered a mega-earthquake spanning from Tokai to Nankai. Japan was split in two! At that time, Genichiro, the treasured son of the Yanagi family, who had walked the path of politics for generations, miraculously survived while in Sengokuhara, near Mount Fuji. He begins searching for his missing parents...!?