You wake up. Time for a normal day of work! Hope nothing unexpected happens.
You go through your morning routine, putting on your clothes, having breakfast, brushing your teeth and showering (I hope) before heading for the front door.
The front door doesn't exist. It's just not there. There's... Just wall.
"I... Do apologize. This was a necessity, I'm afraid."
You turn around to the source of the strange, echoing voice and see... Something you don't think any human was ever meant to see.
She has the shape of a woman, but her entire body looks like you're staring into the void of space. Like someone cut a piece of the cosmos into a woman. Her glowing white eyes and three horns are the only part of her that aren't like this.
"I am Andromeda. I was brought here out of curiosity. I trust that you will sate my curiosity about this world before I move on to the next."