Otherworld

The Otherworld is a universe or higher 5-dimensional space, that is only slightly connected to the Human World. Unlike the Dark World, it is the home of higher beings closer to gods and true devils.

It is the highest realm in the Mother Sea, "floating" above others. It also is called Underworld, Spirit World or Unrivaled World. The Otherworld touches multiple Human Worlds or Dark Worlds and the gods can travel between them.

Dangers
Should the world be connected via an it could mean the end of all balance, as the ravenous devils and meddlesome gods of that realm would drive the world into even greater chaos than the demons of the Dark World.

Magicians are known to try to gain access to that realm for knowledge or because they hear the voices of gods that call them.

Between universes lies a guardian or multiple guardians "Black Hands" that steal the souls. Keeping a gate open for longer requires therefore a large quantity of souls to keep it stable.

History
The devil Michiko Fleuretty, came from the Otherworld and was living together with Annerose Vajra in human form. In Witch of Steel Annerose, Barde Barde tries to use a Philosopher's Stone and Michiko to open a gate and keep it stable. However, is in the end stopped.

In Taimanin Asagi Battle Arena the portal is mentioned again by Neu Eazlane, as the UFS tried to open a portal once more.

In Taimanin RPGX the god Kiyomaro flees from his duty in an other Human World to be hunted as part of a festival to the RPGX world. However, is beaten and forced back to fulfill his role. The same Kiyomaro appears in an other event later, in a struggle between some of the gods.

Policy
It is mentioned as a realm of Devil and Gods to alien to the human world.

One of the devils mentioned is "Beelzebub".

Geography and Topography
Unknown

Trivia

 * The realm is described to be incompatible with the Dark and Human world.
 * While beings from that realm create a sort of avatar in the human world, this avatar consumes large amount of energy. If this energy is used up, it will open a short portal pulling the avatar back.
 * The "Spirit World" is mentioned as the summon place of Familiar Spirits in Onmyo Knight Towako.