An au where Muse has the ability to create dimensional portals. Muse accidentally entered a dimension almost identical to their own using their portals, and didn't realize that the dimension they were currently in wasn't technically their own. In this dimension, exist two of Muse's friends, Behe and Lace. Muse likes to spend breaks in this alternate dimension to visit them, though they occasionally get confused and end up staying in it longer than they intend. Because the universes are virtually identical, Muse is allowed to each in both, as it means that the alternate universe Muse can teach in the original universe.