Koshuao is a notable city in Grand Besaid, it is also the capital of the Grand Besaidian state of Olgmar. Koshuao is very small in size and population compared to many of the larger cities in Grand Besaid, and it is even small compared to a number of cities in southern and western Olgmar. Koshuao was picked to be the state's capital for it was just large enough to supply the state government with the resources it needed to function, but still small enough to allow the state government and its offices to be the main focus of mass transportation and daily business functions. The city was surprisingly, only one-fifth it's current size before it was made the state capital.