Saito (彩都) is a suburban area garden town located in IbarakiOsaka. In the manga, it is a special region zone which is under controlled by the government, general public intrusion is prohibited by law. It is near to the JGSDF 3rd Division Technical School - four stations away by the Monorail.

Note: You can view the real world comparisons of this location with the extra manga chapters Site Story here: