I have no idea who nay is in the fanfic. Maybe you could provide more context or details to help figure it out.
I'm not sure who 'Nay Lin Aung' specifically is in relation to 'Pulp Fiction'. There could be many characters or people with that name, or it might be a very specific reference that I'm not familiar with.
As I said before, I'm not sure who Nay Lin Aung is in Pulp Fiction. So I can't say if they are an important character.
It could be her long - time boyfriend. They've been in a loving relationship, and the pregnancy was a natural progression of their relationship.
It could be Death Eaters who are still lurking in the shadows. They might see Hermione as a threat because of her association with Harry Potter and her strong stance against the Dark Arts. They could kidnap her to try and get information about Harry or to use her as bait.
I don't know who specifically wrote the '300 days fanfic'. There are so many fans out there creating fanfics, and without more information, it's hard to determine the author.
I have no clue who the author of that zux fanfic is. You could try doing a web search or posting the question on a dedicated fanfic discussion site to get an answer.
In Naruto fanfic, 'Rena' could be an original character created by the fanfic writer. She might be a ninja from a hidden village, perhaps with unique abilities like some special jutsu or kekkei genkai. Without more context from the specific fanfic, it's hard to say exactly who she is.
I don't know who the author of 'the lemons fanfic' is. There are so many fanfic authors out there and without more information it's impossible to determine.
We don't have enough details to know the creator of 'caelzorah 100 fanfic'. It could be a person with a great deal of creativity who had an idea for this 'caelzorah' story and decided to write it. It might be someone who has been involved in the relevant fan community for a long time and wanted to contribute their own story, or it could be a new face in the fanfic - writing scene who just happened to come up with this concept.
I don't have any information about who created '100percentsassy fanfic'. It could be an individual within a specific fan community who was inspired by their favorite show, movie, or book.