The Esper Entity of Itsuki Koizumi is a gargantuan, orderly nation, ruled by Itsuki Koizumi with an iron fist, and renowned for its museums and concert halls, prohibition of alcohol, and smutty television. The hard-nosed, cynical, humorless, devout population of 12.3 billion Itsuki Koizumians are kept under strict control by the oppressive government, which measures its success by the nation's GDP and refers to individual citizens as "human resources."

The relatively small, corrupt, well-organized government juggles the competing demands of Industry, Education, and Administration. It meets to discuss matters of state in the capital city of North High Clubroom. The average income tax rate is 55.7%, and even higher for the wealthy.

The frighteningly efficient Itsuki Koizumian economy, worth a remarkable 3,136 trillion Espers a year, is broadly diversified and mostly comprised of black market activity, especially in Information Technology, Uranium Mining, Retail, and Woodchip Exports. State-owned companies are reasonably common. Average income is an amazing 255,026 Espers, and evenly distributed, with the richest citizens earning only 2.1 times as much as the poorest.

The Itsuki Koizumian Tourism Bureau has described the abolition of coastal defences as a "kick to the groyne", traveller camps regularly block five-lane superhighways, man-love is banned in the name of His love, and a state-funded project is investigating whether the moon is made of cheese. Crime, especially youth-related, is totally unknown. Itsuki Koizumi's national animal is the Moo Cow, which is also the nation's favorite main course, and its national religion is Haruhiism - SOS Brigde.

Itsuki Koizumi is ranked 20,221^st in the world and 6^th in SOS Brigade for Most Cultured, scoring 92 on the Snufflebottom-Wiggendum Pentatonic Scale.