The Multiverse
The Multiverse, or Multi-verse, also known as the Omniverse, was the totality of every existing parallel universe — "all realities, all possibilities". Jenny Everywhere was believed to exist in every dimension of the Multiverse. (COMIC: Infinity Apartment)
Nature
According to one account, the Multiverse was born from a "soup of seething quarks" known as the proto-multiverse, which was fought over by the Destroyer and the Defender at the "beginning and end of everything". (PROSE: Where Is Everywhere) One account suggested that there was only one properly “real” universe, and an infinity of others which were “only possible, not actual,” though this did not mean they did not exist. According to this same account, there were five entities which existed in every possible universe that contained a version of the planet Earth: gravity, God, numerical facts, the “self-organising principle of nature,” and Jenny Everywhere. (COMIC: The Freak Issue)