The Multiverse

The Multiverse is a fictional group of multiple universes. Together, these universes make up the Multiverse out of everything that exists: the entirety of space, time, energy, matter, information, and physical laws and constants that describe them. The different universes within the Multiverse are called "parallel universes", "other universes", or "alternate universes".

Every universe within the Multiverse is enclosed within a form of atomic-level bubble, comprising that universe, and keeping it's occupants unaware of the other universes that surround them. There an unlimited amount of Multiverses within the ERAS Universe.

Creation of the Multiverse
The Multiverse is a cosmic construct built outside of time and space. The separation between parallel, alternate and even our own universe, is the Void. The edges of the Void are then separated by a bubble layer which comprises each universe, making it near impossible to step between them, without severe repercussions.