Deep City (神奈京, Kanakyo) is a subterranean city built and owned by Yasaka Industries. It is located beneath Mongolia, and is a extra-national independent territory.
History
In 2025, Yasaka Industries negotiated an energy trade agreement with the nation of Mongolia in exchange for sole development rights over the planned construction area. Development began the same year, and the city was opened for trade in 2030. During its five-year construction, Yasaka Industries utilized the city's growing energy infrastructure to mine five trillion Deep City Credits (KNK). This cryptocurrency was then traded internally and offered as credit to businesses that planned to open branch offices in Deep City. Of the five trillion Deep City Credits mined, only two trillion are traded publicly. Yasaka Industries' push to standardize Deep City investments with Deep City Credits allowed it to become an internationally competitive currency. To date, many corporations and nations accept Deep City Credits as currency.
Districts
Arikazu
Arikazu is a corporate working district. It houses many wealthy corporate officers, celebrities, and entrepreneurs. The district is known for a variety of colors produced by stained glass high-rises. Many business buildings here provide luxury apartments for their employees and associates.
Skylight City
Skylight City is a park district. It services a network of fiber optic cables which carry sunlight from the surface, and as such, Skylight City is one of few districts where natural sunlight is abundant. Several parks, museums, and public art installations are housed in this district. Chloropanels here provide fresh oxygen for the upper districts.
5th Street
5th Street is the primary administration district. Here, the corporate headquarters of Yasaka Industries, the Yasaka Daimyojin, manages the city. Security presence is heightened in this district, with several precinct houses governing individual quarters of the district.
Nuketown
Nuketown is an entertainment district. Nuketown contains several nuclear fusion plants, which power the city. Many large entertainment businesses, such as stadiums, holo-theaters, and dive nexuses generate revenue here.
24th Street
24th Street is a working district. It features a blend of business types in close proximity to each other. 24th Street is also well-known as a trading hub for organized crime, as it contains the city's largest subspace portal.
Maki Maki
Maki Maki is a commercial district. Much of the city is owned by MakiMart, a consumer goods corporation. MakiMart stores specialize in home goods, consumer electronics, grocery, and convenience.
Little Gensokyo
Little Gensokyo is a cultural district. It contains the largest population of youkai in the city, including many Gensokyo refugees. Many buildings in the city are modeled after Edo-period Japanese architecture. Many shrines and temples are maintained here.
Ishikore Avenue
Ishikore Avenue is an industrial district. Ishikore services the automotive and recycling industries. Large scrapyards cover most of the district, with streets and buildings carved through with secondhand equipment.
The Cliffs
The Cliffs is a production district. Large factories carved into the cavern walls service the production of batteries, steel, and nuclear cells. The Cliffs also houses dense apartment complexes for low-income families.
The Tunnels
The Tunnels is a red light district. It is named for the service tunnels that populate the district to provide access to the city's critical infrastructure. Some service tunnels are rarely used for official business, and have become a hub for gang-related activities.
Meiji Gardens
The Meiji Gardens is a park district. Here, hydroponic farms and chemical processing plants provide most of the critical air elements for the city, such as oxygen and nitrogen. As of 2045, many hydroponic farms have been abandoned, allowing them to become overgrown with wildlife. The Meiji Gardens district is low enough to access Deep City Lake, and it services several harbors and fishing docks there.
Daiyuu
Daiyuu is a housing district near the very bottom of the city. It is considered to be a slum, with high crime rates, poor housing quality, and unsafe air quality. Coffin hotels and street vendors are common here.