The Eboshian Empire of The Real Underground is a titanic, socially progressive nation, ruled by Tsuki Dreamer with an even hand, and renowned for its vat-grown people, smutty television, and ban on automobiles. The hard-nosed population of 14.401 billion Eboshians are fiercely patriotic and enjoy great social equality; they tend to view other, more capitalist countries as somewhat immoral and corrupt.

The medium-sized, corrupt, socially-minded government juggles the competing demands of Defense, Education, and Industry. It meets to discuss matters of state in the capital city of Deltarune City. The average income tax rate is 93.9%, and even higher for the wealthy.

The frighteningly efficient Eboshian economy, worth a remarkable 3,477 trillion Teikoku Shiringus a year, is broadly diversified and led by the Information Technology industry, with significant contributions from Arms Manufacturing and Tourism. State-owned companies are common. Average income is an amazing 241,472 Teikoku Shiringus, and distributed extremely evenly, with practically no difference between the richest and poorest citizens.

Hordes of tourists are ruining the environment, Tsuki Dreamer's new door-knocking campaign has the sweet taste of success, bemused citizens are encouraged to sing foreign-language hymns of religions they have never heard of, and vegetables are crisper thanks to CRISPR. Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. The Real Underground's national animal is the Froggit, which frolics freely in the nation's many lush forests, and its national religion is Deltarune Thought.

The Real Underground is ranked 6,983^rd in the world and 14^th in Starlight for Highest Average Incomes, with 241,472.39 Standard Monetary Units.