DigiQuartz

The DigiQuartz (デジクオーツ) is a mysterious space between the Human and Digital Worlds created by. It originally existed in a different time from the Human World, but was eventually fused with the Human World by Quartzmon, disguised as a Keramon. It is used as the field for the Digimon Hunt, and manifests as a digital mirror of the Human World. It is quite fragile, and the matter within can disintegrate into data at a touch. Due to the DigiQuartz's connection to the Human World, the events within it often play out in the Human World through various analogues, such as windows blowing out or objects moving around. Over time, the DigiQuartz has expanded outside Japan, and manifested in locations as far away as Hong Kong or the USA.

Various Digimon manage to find their way into DigiQuartz and are lost there before being drawn to and corrupted by the power of human emotions. While Taiki attempts to get to the bottom of it at his end, Shoutmon has been attempting stop his fellow Digimon from traversing into DigiQuartz. Hunters must use a "Time Shift" with their Fusion Loaders to open a gate to the DigiQuartz, but many of the corrupted Digimon can simply draw in human victims from the other side.

The DigiQuartz imposes several restrictions on Hunters, most of which limit their power. For example, it is impossible within the DigiQuartz for a Hunter to reload more than one of his Digimon at a time, and they can only digifuse two Digimon together at a time.

Digimen
The Digimen (デジメン) is a restaurant run by  and. Its name is a pun on "Digimon" (デジモン) and "ramen" (ラーメン). It is initially on the verge of shutting down, but the two Digimon attempted to save their business by setting up a mutual partnership with a human whose own ramen restaurant was suffering financially.

Digimon Land
Digimon Land (デジモンランド) is an amusement park owned by, using it to obtain children to increase his powers.