The Ace Basketball Player of Kagami is a colossal, efficient nation, ruled by Kuroko with an even hand, and renowned for its deadly medical pandemics, smutty television, and frequent executions. The hard-nosed, humorless population of 9.934 billion Kagamians are highly moralistic and fiercely conservative, in the sense that they tend to believe most things should be outlawed. People who have good jobs and work quietly at them are lauded; others are viewed with suspicion.

The medium-sized, corrupt, moralistic government juggles the competing demands of Administration, Education, and Industry. It meets to discuss matters of state in the capital city of Seirin. The average income tax rate is 72.4%, and even higher for the wealthy.

The frighteningly efficient Kagamian economy, worth a remarkable 2,340 trillion yen a year, is driven entirely by a combination of government and state-owned industry, with private enterprise illegal. However, for those in the know, there is an enormous, deeply entrenched, fairly diversified black market in Retail, Arms Manufacturing, Information Technology, and Woodchip Exports. The private sector mostly consists of enterprising ten-year-olds selling lemonade on the sidewalk, but the government is looking at stamping this out. Average income is an amazing 235,566 yen, and evenly distributed, with the richest citizens earning only 2.2 times as much as the poorest.

Explicit slash fiction is repackaged for kindergarten kids as stories about friends cuddling friends, community organizers have given up going door to door because nobody is home, children's books regularly feature formerly distressed damsels suing their princes, and signs stating "You Must be This Tall to Enter" have started appearing outside retirement homes. Crime, especially youth-related, is totally unknown, despite the fact that it is difficult to make it through a day without breaking one of the country's many laws. Kagami's national animal is the dog, which teeters on the brink of extinction due to widespread deforestation, and its national religion is Cards.

Kagami is ranked 147,518^th in the world and 2,337^th in the Pacific for Lowest Crime Rates, with 61.22 law-abiding acts per hour.