Dark City was situated on the border of several countries, making it difficult to assign ownership; therefore, no country governed it, and no laws restrained it.
At first, it was just a small village with a population of no more than a hundred people. But as more and more people from various places drifted in, houses were built in increasing numbers, and the village gradually grew into a small town.
Later, the X Family arrived, and with their wealth and methods, they conquered the place. They established order and transformed the small town into Dark City, which then attracted even more people.
Now Jie, Hai, and a few from the Hunter's Guild had successfully infiltrated Dark City. They observed the place daily, looking for vulnerabilities to exploit.
Dark City might appear as nothing more than a slum from the outside, with messy two- to three-story houses everywhere, many of which were in disrepair. There was no planning whatsoever: a house here, a house there.