Arcadia is a major area in Tokyo Millennium with no reported demon attacks, where pre-disaster plants and animals thrive. The city itself has a very minuscule population, only making up less than .7 % of Millennium’s total population, and only holds onto it’s title of a major sector (as apposed to the numerous smaller neighborhoods that are in between and on the outside of the major ones) though the negotiation of it’s leader, Gimmel.
The area itself, despite having a low population, somehow manages to place fairly high on most economic reports, exporting a large amount of goods to other areas of the city. Travel into Arcadia is very limited, and applying to live in this pseudo-paradise is monitored very close. Even most members of the Center are prohibited from visiting this area on a regular basis. As such, the general public has established a sense of “distrust” about the location and those claiming to be from there.