The Republic of China was a large nation in mainland Asia. It was a great power in Asia following its ascension during the early 20th century. However, it quickly weakened due to frequent civil war and fragmentation. Following the invasion by the Japanese, the warring factions in China united in a tentative coalition against the invaders until Japan's downfall at the conclusion of the Second World War with its defeat at the hands of the Allied Powers. However, the Republic of China would not last long as the factions once again warred with each other until the Republic was driven off from the mainland to Taiwan with the victors renaming the mainland as the People's Republic of China. It is one of the primary locations of Part One of the story.