The Everrealm is an alternate universe connected to our world through the magical island of Neverland, which is part of Faerie. All the magic in the Everrealm comes from The Mystic Isles.
All the Disney princess’s stories take place in the Everrealm except the ones that explicitly take place in our world, namely Tiana(although Prince Naveen’s kingdom is in the Everrealm. Sofia the First and Elena of Avalor also take place there and are the first to have acknowledged its existence in our world media. The Three Odd Sisters, Lucinda, Ruby, and Martha, have purposely caused these events to unfold by interfering in the lives of the various villains, seemingly based on an old fairytale book.
The realm may be a part of Kintaria.