Pine Garden
One of the richer districts in the nexus, not because of the general prosperity of the area, but due to some of the people who live there. Nothing better exemplifies the difference in wealth and status than this district. It's split up into two distinct sections, The Hillside and the Valley.
On the Hillside is where all the wealth and power in the area is clustered. It's an exorbitant and borderline disgusting display of "prosperity". Mansion upon sparkling mansion blots the entire hill, the influence of the people living here casting a shadow both metaphorically and literally on the people living below in squalor. The average Nexus resident could only dream to live here as the property prices are higher than they'll ever make in their entire lives.
After a recent disaster known as the Blight, a large chunk of the Valley has been left devastated. What was once a sprawling collection of middle class urban residential areas have mostly been reduced to smoldering ruins for the lowest situated parts in the valley. Those living a bit further up still have functioning infrastructure to support them tho. Down where the concentration of Blight was at it's strongest, the water itself has turned toxic and the vegetation has died, there's even rumors of strange beasts being spotted.
The Harrington Estate
A Millenia old mansion belonging to the Harrington family. It's located close to the center of the Hillside and is currently owned by Chief of Pine Garden, Lady Amanda Harrington. It's pristine walls present a symbol of respect, or at least they used to be until the rumors about the current spread.
Despite what it's inviting appreance may tell you, approaching uninvited could spell disaster for you. Ever since it was raised, layers upon layers of protective measures have been added and the current mansion you see today is in fact not even there really. The actual mansion is hidden inside of a seperate pocket dimension with the house you see from outside merely being a projected image of what it looks like, the only physically existing object is the door which is the gateway in. The interiors themselves have been reinforced too in order to withstand all but the mightiest of blows as well as filled with numerous deadly traps that will bathe any intruder in the wrath of the elements.
Culture
Since the Nobles are surrounded by such extravagant wealth in every concievable form, money itself has almost entirely lost value as a means of transaction between them. All that matters are the percieved prestige you posses and the exchange of favours. Favours can be almost anything from the smallest of things to lifedebts and most of them can be traded freely within this domain
Naturally down in the Valley things are a lot different. Regular old capitalism rules the day, although the gang activity is fairly high here. Some believe the gangs are merely pawns of the nobles above, that they influence them and pit them against each other for their amusement. Such thoughts however are better not spoken in public as the eyes and ears of the Nobility reach far and wide.
Or so it used to be. The Blight has changed the dynamics quite a lot. The gangs practically collapsed as their Noble backers pulled out upon seeing the Blight take form. The Valley is now in danger of being written off as a failed investment. If that were to happen the money flow down would stop all together, but so would the influence of the Nobles. Perhaps the Valley will become its own autonomous state in the future, one much poorer than before yet free from the tyranny of those up high.
Another thing of note are the "New Nobles". Despite their 'name' these people are not actually Nobility yet they live on the Hillside. They're merely people who have acquired huge wealth recently and essentially bought their way in. It should come to no surprise that the older families look down on them and in some cases see them as even worse trash than the rabble down below, for they have dared to rise above their stations.
Politics
While you might think the Chief is the one with final say in this district, that's not the case here even though you'd actually be right ordinarily. As it stands, the true power in this District is held by the Council of Nobles. They make all the decisions and the Chief is the one who executes them. Traditionally, the most powerful Noble is the Chairman of the Council, they hold the most sway and is therefore also the Chief.
However that tradition has been challenged recently as Lord Russel's faction have gained enough power to take direct control, yet have chosen not to do so. This created a whole lot of confusion as well as uncertainty in the Council that still persist to this day. Furthermore, the rumor that the current Chief is Lord Nelson's pet only serves to make this situation even more volatile, whether it's true or not.