ArchOT

Arch was from an AU where everything was barely the same, but with them in place of Kris and the absence of a Dark World.

While they’re average (as far as humans are in Hometown), they often have “Dreams” where they explore the Alternate Universe where of their own world; however they’re unable to interact with their inhabitants. One day, Arch were awaken to a human ghost name Kris, who later found out that they’re the only one who can see them. When they went to sleep, they found that Kris can interact with the worlds that they visit (with Arch choosing the destination that they go through any door they open).

Thus now, they live a mundane life during the day, while they explore the multiverse at night.