The Galactic Ryūjin Empire of Derenus is a colossal, genial nation, ruled by Ryūjin Emperor Kashikaru Maximus with an even hand, and renowned for its compulsory military service, smutty television, and devotion to social welfare. The compassionate population of 2.561 billion Derenese are fiercely patriotic and enjoy great social and economic equality; they tend to view other countries as corrupted by the hollow pageantry of sham elections.

The large, corrupt government juggles the competing demands of Administration, Industry, and Education. It meets to discuss matters of state in the capital city of Kōtei-To. The average income tax rate is 90.9%, and even higher for the wealthy.

The frighteningly efficient Derenese economy, worth 388 trillion Holy Christian Sedaris a year, is fairly diversified and led by the Information Technology industry, with significant contributions from Tourism, Book Publishing, and Arms Manufacturing. State-owned companies are common. Average income is an impressive 151,700 Holy Christian Sedaris, and distributed extremely evenly, with little difference between the richest and poorest citizens.

The police have been swamped with requests to stay up past bedtime, property values in suburbs have nosedived after the middle class were forced to live next door to ethnic minorities, government-sponsored WiFi allows farmers to rant about city folks in real time, and the Farmer's Almanac is the most popular college textbook. Crime is totally unknown, thanks to a well-funded police force and progressive social policies in education and welfare. Derenus's national animal is the Beanie Cat, which frolics freely in the nation's many lush forests, and its national religion is The Shinto Sect of Christo-Judaislam.

Derenus is ranked 9,204^th in the world and 1^st in Imperium of Christian Nations for Most Scientifically Advanced, scoring 440.27 on the Kurzweil Singularity Index.