Tasogare Sekai

History
Tasogare Sekai is the japanese equivalent name for the Shadow Realm or Shadow Quadrant. The location is unknown due to lack of proper scientific evidence, and available equipment to explore. However, evidence of it's existence is marked from stories dating back to biblical days. It is called the shadow realm due to there being no orbital Sun, and possible light sources are only emitted from the documented planet and moons.

Currently the main 'planet' of Tasogare, and it's moon Hoshii is documented by explorers both human and non-human.

Tasogare
Tasogare is considered to be a planet, but yet of unknown size. It holds marked sections, or countries that hold several different races of modern and historic descent. It's moon, Hoshii is rumored to be a dead star invaded centuries ago by curious humans and warlords.

Hoshii
Known 'moon' of Tasogare.

Despite the outward appearance seeming dead, and unable to hold life - technology advancedments within the Tasogare and Hoshii have made life thrive.

Important Events
Human interaction with the realm has been documented since biblical times, so roughly about 2000+ years or more.

Current historic important events:

Ukranian portal - Discovery of Makara province of Tasogare.

Makara invasion of Hoshii 

Makara invasion of Tasogare - Arashi

Makara invasion of Tsuki

Makara invasion of Warai