Somewhere between the dimensions there is a store that offers suits that will enable you to become someone else. Normally it can be found in a place called the City of Worlds, but sometimes in different worlds you can find doors leading to it, and even small shops connected to it. Inside the store, you can meet Goodwill, its owner, and a large number of his helpers who can use the skinsuits.
Various travelers come to the store, some are looking for entertainment, some are looking for a new life, others are looking for an escape from their troubles, others want to gain power with their help, or are looking for a hero who will save the world.
The range of services is huge, from humans to animals, anthro, fantasy creatures, mythological betas, even aliens and robots from Sci-Fi universes.
Rules:
If you want to create your own story, name the option as follows, or similar:
Person X enters the shop / Finds a strange shop / finds a strange door, person is looking for something.
For example, a young man enters a store, looking for a hero who will slay the demon lord.
If you want, you can specify from where your character comes and where it goes.
Characters and creatures from books, games and movies, in my opinion, are allowed.