The Prefecture of Yorinaga is a colossal, genial nation, ruled by Governor Count Matsudaira Yoritoshi with an even hand, and notable for its compulsory military service. The compassionate, hard-working, devout population of 6.155 billion Yorinagans have some civil rights, but not too many, enjoy the freedom to spend their money however they like, to a point, and take part in free and open elections, although not too often.

The medium-sized government juggles the competing demands of Spirituality, Welfare, and Education. It meets to discuss matters of state in the capital city of Sutoku. Citizens pay a flat income tax of 28.3%.

The strong Yorinagan economy, worth 304 trillion yen a year, is broadly diversified and dominated by the Retail industry, with significant contributions from Trout Farming, Automobile Manufacturing, and Tourism. Average income is 49,438 yen, with the richest citizens earning 6.5 times as much as the poorest.

Shintō has been named as Yorinaga's national religion, legitimate job descriptions now include "smiling and waving", college students make ends meet by selling their kidneys, and voting is voluntary. Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. Yorinaga's national animal is the tiger, which can occasionally be seen sifting through garbage in the nation's cities, and its national religion is Shintō.

Yorinaga is ranked 188,077^th in the world and 17^th in Free Japan for Most Scientifically Advanced, scoring 48.17 on the Kurzweil Singularity Index.