A quick question on character bios...

So I got my 5000 poke, I am now ready to create my character, but I have one question on my mind before creating my character's bio. Since the human bio rule was already explained, is there any other stipulations I should follow when creating my character's bio? Thanks in advance.

Any other stipulations will be stated in the site rules themselves or in the character banlist.

I just read the other stipulations, but I am still curious because I wanted to make my character bio a bit on the mysterious side...
What I mean is that I wanted my character's history to be something like born in the middle of a desert by an unknown kind of force and the character knows nothing except his name and what pokemon he is.
Not trying to break rules because I do not intend in making this force the work of a legendary or any other rule-breaking thing.
Is there anything in my idea that I stated that I may have to change?

I'll reiterate this here in case anyone refers to this thread in future for advice;

A characters history must be explained, even if they themselves do not know of the details. That includes (in this example) how they would have gotten to the middle of the desert, and what happened to his parents (or guardian) for him to be alone there.