The real author of the Nikki Heat novels is Richard Castle. He's a fictional character in the TV show 'Castle' who writes these novels within the show's fictional universe.
Sadly, I have no clue about the author of 'arafoo kenja no isekai seikatsu nikki novel'. It could be a relatively unknown author or a new release that hasn't gained much popularity yet outside of a specific niche. Maybe some research in Japanese literature databases or isekai - focused communities could reveal the author.
I'm sorry, I don't know who the author of this light novel is. There could be many light novel authors out there, and without more information or research, it's hard to say.
I'm not sure who Nikki Yovino is just based on this title. She could be the author of the story, in which case she might be a writer or storyteller. She might be writing from her own experiences or from her imagination.
As the real author is Richard Castle in the 'Castle' story, he is a very imaginative and creative person. He often uses his own experiences and the cases he gets involved with through the police detective he partners with in the show to create the Nikki Heat novels.
There's no information given to identify the author of 'ash always loses fanfic'. It could be a new writer just starting out in the world of fanfiction and using this unique title to get noticed. Or it could be an established fanfic author who is trying out a new concept. Without further details such as the website it was published on, or any references within the fanfic itself, we can't determine the author.
I'm not sure who the author is. There are so many fanfiction writers out there, and without more information, it's difficult to determine the specific author.
It's hard to say for sure. Some of the stories might be based on real events, but they could also be exaggerated or fictionalized for entertainment purposes.