A Scholarly Slave wrote:
I'm great at world-building; I'm a tabletop gamer. Not only that, but I'm the GM. World-building isn't so difficult as long as you don't focus on everything at once. The characters in mind would have a set path, and even if it WAS world-spanning, this is where the fact that it's on Earth comes in. Tweak a few countries, theorize a few scenarios with the introduction of magic, draw inspiration from everything you can, BOOM!
That still doesn't address the issue of Wolf's canon outpacing your own, but well, if it works for you, go for it.
In my fanfiction, I prefer to stick to the canon setting (and preferably characters) and only add new stories to it. World-building is something I only do in original settings. ^^;
I also like the idea of your fanfic; I'd recommend watching the anime "Gunslinger Girl" for some inspiration.
I know it. In fact, it is already one of my major inspirations, particularly the relationship between Hirshire and Triela. ^^