Story and layout of the city
The history of the city—and the world in general—is not fully elaborated upon. In fact, it is suggested that these historical documents and other records are kept from the public and are under control of the government. However, certain implications are made throughout the story, and important events are also revealed as time goes on.
The following list is not comprehensive; it only presents what events and mysteries are addressed in the beginning of the series.
- It is unclear how some humans mutated, but it may have been due to nuclear disasters of some kind.
- The lower levels of the city were not always there. They were constructed, but no one remembers how or why it was done.
- In the past, a string of kidnappings was reported, mostly children. Both humans and mutated humans were taken, but no one knows where they were taken or who did it.
- These children were most likely taken to the underground and experimented upon.
Nevertheless, it still has its fair share of corruption, scandals and illegal activities, mostly due to the number of crime families that reside here. Although they don't play a major role in the story (yet), some members hold grudges against certain protagonists, namely Heine Rammsteiner and Badou Nails, and are seeking vengeance.
In the beginning, the series places a much greater focus on the lower strata and the mysteries and whereabouts of the underground. Later, however, the surface becomes much more significant as certain parties begin to move against one another.
|Buon Viaggo is a restaurant owned by Kiri. As an old friend of hers, Mihai Mihaeroff in particular frequently helps her manage the place, doing whatever task is required of him. It's also possible that he lives here, but it is not stated or shown explicitly. They serve really good pasta and lasagna apparently, making the restaurant a common stop for both heroes and villains alike.||The Tower is a great structure that seems to be located at the heart of the city. It is where the mayor of the city, Zöllner E. Neubauten, resides. Presumably, it also hosts government officials as well as military forces. Not much is known about it, but its massive size intimidates all who look upon it.|
Also mingled amongst the population are genetically modified subjects, though they seem to be incredibly rare; one would most likely not realize their true nature in a normal situation.
Gang violence and human/mutant trafficking are common in these parts of the city. Police enforcement, while available, is rare, and the law is oftentimes taken into one's own hands. With crime rampant, it goes without saying that life here is hard and precarious. One must learn the ways of the lower strata quickly or be crushed by them.
|Generally, on a good day, the church is quiet and peaceful. Unfortunately, it sometimes turns into a battleground when enemies happen to come knocking on its doors. The church is managed by the bishop, Ernst Rammsteiner, and is also occupied by Nill. Frequent visitors include Heine Rammsteiner and Naoto Fuyumine.||The cafe is owned by Granny Liza. It is occupied by mutated humans who consider Liza be their mother; likewise, she considers them to be her children. Before being taken under her wing, they were most likely abandoned or were victims of trafficking. Many of the characters come to the cafe to either help Liza with certain tasks or to exchange information.|
The entrance to the below is hidden and remains a mystery. Those who ascended from such a place either keep that secret to themselves or have simply forgotten.
Despite what dangers may await them, however, the protagonists of the series hunt for a way into the abyss in the hopes of resolving their own pasts. They do not, however, account for the possibility that the creatures of the underground may reach out to them instead, ascending to the surface to wreak havoc on the world above after what seemed to be years of dormancy.
Secret passageways can be used to travel between the surface and the lower strata, so long as one knows where to find them. Sewage ducts and ventilation shafts are examples of such passageways. Although these areas may have seen heavy use in the past during the city's construction, nowadays they are mostly empty.
Later in the series, it is suggested that there are also elevators that can take people up and down the different layers; however, these seem to be only for private and government use.