Well I might as well tell you what's going on since you're here.
Hi! My name is Everest, and I'm a demon.
Not a big, scary, demon from Hell, no.
I'm a Dæmian. Well, I am in most universes anyway. We don't have unlimited power or special ghosty abilities to posses and control our victims. We're more like humans, with an extra chakra open.
I'm kind of an exception to reality currently.
I'm a Fangirl.
Yep, you heard that right, a Fangirl.
Being that gives me certain knowledge that I can use to shape whatever world I'm in.
The fandom that I currently live in is the Young Justice fandom. I favor it over most because the people there accept who I am and I can do well there.
So that's where I spend most of my time.
I've written down my experiences there elsewhere, because I'm going to be focusing on other stuff.
Because different fandoms and universes make things complicated, I'll have to explain every once and a while what the heck is going on. 
In some universes, I might look different. For example, I had to design a completely different me for the Steven Universe fandom. Don't even get me started on my gemsona, It's bad enough I have to live with a gem stuck to my foot, but all of my REAL abilities are diasapted, otherwise it would tear apart the universe, and the fourth wall would be demolished, imploding all infinite realities as we know them!!1!!2!
Ahem...anyways, long story short, my abilities and appearance matter purely on how I fit soundly into each world.
I can move about these fandoms pretty easily, but if there is a story going on that needs me in it, I won't be able to leave.
In short, if it doesn't make sense for me to suddenly leave, then I won't be able to, because the universe doesn't allow impossibilities. Paradoxes are fine, but (most) impossible things don't come true.
Just don't get me started on prophecies.
That's a whole different chapter to talk about...
Anyways, welcome to the show, grab your popcorn, and wait a while because it takes a bit of thought to write these stories...