The Republic of Oedun is a colossal, orderly nation, remarkable for its sprawling nuclear power plants, unlimited-speed roads, and devotion to social welfare. The hard-nosed, hard-working, cynical, humorless population of 4.586 billion Oedunians are rabid consumers, partly through choice and partly because the government tells them to and dissenters tend to vanish from their homes at night.

The relatively small, corrupt, pro-business, well-organized government juggles the competing demands of Industry, Defense, and Education. It meets to discuss matters of state in the capital city of Cainhurst. Citizens pay a flat income tax of 87.5%.

The frighteningly efficient Oedunian economy, worth a remarkable 2,112 trillion Bloods a year, is broadly diversified and mostly comprised of black market activity, especially in Information Technology, Arms Manufacturing, Retail, and Uranium Mining. Average income is an amazing 460,727 Bloods, but there is a vast disparity between incomes, with the richest 10% of citizens earning 3,424,741 per year while the poor average 18,337, a ratio of 186 to 1.

Children are afraid to go out at night due to the ubiquity of hardened jaywalkers, parents who try to organize playdates for their kids have police drop through their ceilings, adults have never outgrown their fear of monsters, and entomologists flock to Cainhurst for its remarkable gadfly population. Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. Oedun's national animal is the Jermas dumptruck, which is also the nation's favorite main course.

Oedun is ranked 72,764^th in the world and 5^th in Yharnam for Largest Trout Fishing Sector, scoring 3,846.65 on the Nemo Depletion Efficiency Index.