Info on what works for readers and what doesn't would be good

Here goes.

Since I had not read any of the books or seen any of the movies, I lacked confidence that I possessed the prerequisites for reading your fanfic.

It turned out that I did possess the needed prerequisites (for reading Chapter 1) but I almost concluded otherwise and almost stopped reading when I got to the first reference to Charlie because I did not know who Charlie is.

But then a few sentences later it became obvious that Charlie is Bella's father, and I read to the end of the chapter.

In summary, my feedback to you is that this particular reader would have benefitted from a replacing of the first occurance of "Charlie" with "My father, Charlie."

I want to know what happens next :)