The nation of Obrenaja occupies a large peninsula of the continent Perfection, situated comparatively far from the central glacier. Thus the mean temperatures are warmer than usual for Perfection, while the local energies are still predominantly Concordant. A mountain range connects the peninsula to the continent, though it is by no means impassable; several trade routes lead over its mountain passes. However, the greater part of Obrenaja's intercultural trade travels by sea.

The two largest and most populous provinces are Sin ur Pelve ("Land of Wind") and Omwa Mire ("Sea of Gold"), covered in wide open subtropical grasslands. A number of small cities line the courses and deltas of the larger rivers. Sin ur Pelve also harbors the capital city of Obrenaja, named Vetsabesh. The grassland people display the vibrant taste of savoir-vivre that has become proverbial for the Obrenaj.

The provinces of Posade and Nurnovitsa receive more precipitation due to their proximity to the coast. Their soil is fertile, and their well-developed agriculture accounts for the lion's share of Obrenaja's produce surplus. The pleasant sea-side city of Tagrozhna is a center of science and culture featuring a renowned medical academy.

The province of Casan is the most arid part of Obrenaja, the greater part of its area being claimed by a desert. Most of its population is concentrated in its sole large city, Contra. Despite some flourishing metal industry in the outskirts of Contra, the province is rather poor and has to rely on grain imports from Posade and Nurnovitsa in particularly dry years. The Casanje people are said to be taciturn and stoic in most situation, except when dancing Orra, a passionate tango-like pair dance.

The province of Viskatro is situated on the mountain range at the base of the peninsula, thus its climate is mostly alpine. Its inhabitants are said to be somewhat conservative and uppish, but also connoisseurs of the fine arts. Viskateroje rose wine is a luxury highly appreciated in many cultures of the world, including the higher strata of the Empire.

The tiny province of Jelce is a protrusion from the far end of the peninsula, and features some tropical rainforest.