The New Continent and the Old Continent are a bit like two lonely leaves facing each other across the sea, and the City of Defense is precisely at the stem of the northeastern leaf. It is part of the Old Continent, however, the city is not large in size and is surrounded by untamed forests. Before it was destroyed by the fog, it was a trading port—not the proper kind of trade, but a fulcrum for pirates, the Haiwei Clan, and the inland people to smuggle goods.