The Commonwealth of Edogashima is a large, cultured nation, remarkable for its museums and concert halls, compulsory vegetarianism, and state-planned economy. The compassionate, democratic, devout population of 107 million Edogashimen are free to do what they want with their own bodies, and vote for whomever they like in elections; if they go into business, however, they are regulated to within an inch of their lives.

The medium-sized, liberal, socially-minded government juggles the competing demands of Education, Welfare, and Administration. The average income tax rate is 49.6%, but much higher for the wealthy.

The sizeable but stagnant Edogashiman economy, worth 2.65 trillion Edoshis a year, is driven entirely by a combination of government and state-owned industry, with private enterprise illegal. The industrial sector, which is fairly diversified, is led by the Book Publishing industry, with major contributions from Information Technology, Tourism, and Uranium Mining. Average income is 24,749 Edoshis, and distributed extremely evenly, with practically no difference between the richest and poorest citizens.

Religion is strictly forbidden within school grounds, would-be emigrants are told "abandon all hope all ye who would exit here", spies caught red-handed are served cocktails on their first-class flights home, and there is a heavy social stigma attached to e-cigarettes. Crime is totally unknown. Edogashima's national animal is the Fenix, which frolics freely in the nation's many lush forests.

Edogashima is ranked 305,213^th in the world and 326^th in Umamusume Pretty Derby for Highest Disposable Incomes, with 12,473.84 Standard Monetary Units.