The King of Curses of Zukiya is a colossal, environmentally stunning nation, ruled by Ryomen Sukuna with an even hand, and remarkable for its frequent executions, punitive income tax rates, and devotion to social welfare. The compassionate, devout population of 4.104 billion Zukis 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, corrupt government juggles the competing demands of Defense, Education, and Industry. It meets to discuss matters of state in the capital city of Zuyiki. The average income tax rate is 61.0%.

The frighteningly efficient Zukic economy, worth 615 trillion sterlings a year, is broadly diversified and led by the Arms Manufacturing industry, with major contributions from Information Technology, Book Publishing, and Tourism. Black market activity is frequent. State-owned companies are common. Average income is an impressive 149,945 sterlings, and evenly distributed, with the richest citizens earning only 3.4 times as much as the poorest.

Multiple births are a cause of celebration for tax collectors, the saying "when pigs fly" has been changed to "when the lights work", same-sex marriages are increasingly common, and teens graduate from front of house retail to the frontlines of war. Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. Zukiya's national animal is the Phoenix, which soars majestically through the nation's famously clear skies, and its national religion is Golden Retriver Conspiracy.

Zukiya is ranked 259,755^th in the world and 6^th in Cracker Barrel for Largest Trout Fishing Sector, scoring -4.56 on the Nemo Depletion Efficiency Index.