Continent Z itself is very big.
There were four continents in total, Continent Z, Continent Y, Continent X, and Continent W. Continent Z consisted of a large land in ragged circle shape centered in the capital city and their cities are named in alphabetical order until City U before it became ZA and so on.
Continent Y was located on the opposite side of Continent Z and their continent was named this way because their place truly looked like the word Y. Their cities are named with the starting word Y such as YA.
Continent X was located between Continent Z and Continent Y. This continent was a bit special because it was more like island kingdoms rather than a continent. It was said that the sea water increased so much in the Green Planet, which made their content turned into islands like shapes.
