The Catgirl of Ko Yami is a mammoth, orderly nation, ruled by Ko Yami with an iron fist, and renowned for its fear of technology, hatred of cheese, and stringent health and safety legislation. The hard-nosed, hard-working, cynical, humorless population of 9.912 billion Ko Yamians are ruled by a mostly-benevolent dictator, who grants the populace the freedom to live their own lives but watches carefully for anyone to slip up.

The medium-sized, corrupt, well-organized government juggles the competing demands of Law & Order, Defense, and Administration. Citizens pay a flat income tax of 37.7%.

The powerhouse Ko Yamian economy, worth 920 trillion canned foods a year, is led by the Arms Manufacturing industry, with significant contributions from Automobile Manufacturing, Gambling, and Furniture Restoration. Black market activity is extensive. Average income is 92,883 canned foods, but there is a large disparity between incomes, with the richest 10% of citizens earning 442,795 per year while the poor average 11,449, a ratio of 38.7 to 1.

Trying to toast marshmallows in an electric fireplace just isn't the same, the nation's reputation for treachery has left it sidelined on the international stage, officials pull all-nighters to check immigrants for potential links to terrorists, and pallbearers at military funerals dive for cover when they hear the three-volley salute. Crime, especially youth-related, is totally unknown, thanks to a well-funded police force and progressive social policies in education and welfare. Ko Yami's national animal is the can openers, which teeters on the brink of extinction due to widespread deforestation.

Ko Yami is ranked 330,148^th in the world and 3,725^th in Remembrance for Largest Trout Fishing Sector, scoring -18.24 on the Nemo Depletion Efficiency Index.