The Serene Hiyamashu Empire of Acaciatropole is a massive, efficient nation, ruled by Emperor Kataharu of Nakakami «仲神 確明天皇» with a fair hand, and renowned for its smutty television, keen interest in outer space, and stringent health and safety legislation. The compassionate, democratic population of 4.867 billion Acacians hold their civil and political rights very dear, although the wealthy and those in business tend to be viewed with suspicion.

The relatively small government juggles the competing demands of Industry, Education, and Environment. It meets to discuss matters of state in the capital city of Nakato «中都». The average income tax rate is 11.5%, but much higher for the wealthy.

The frighteningly efficient Acacian economy, worth 787 trillion Acacian Shuyens a year, is fairly diversified and led by the Tourism industry, with major contributions from Information Technology, Book Publishing, and Retail. State-owned companies are common. Average income is an impressive 161,803 Acacian Shuyens, and evenly distributed, with the richest citizens earning only 2.1 times as much as the poorest.

Most ambassadors from Acaciatropole retire only a few years after being appointed, protests are legal but strictly supervised, being Emperor Kataharu of Nakakami «仲神 確明天皇» has been voted one of the top ten most dangerous jobs, and Emperor Kataharu of Nakakami «仲神 確明天皇» is considering changing the nation's name to Blackacre. Crime, especially youth-related, is totally unknown. Acaciatropole's national animal is the Imperial Acacianese Rabbit, which frolics freely in the nation's many lush forests, and its national religion is 心代 «Shindai».

Acaciatropole is ranked 129,097^th in the world and 46^th in Hiyamashu for Most Extreme, scoring 14.8 on the Paul-Nader Subjective Decentrality Index.