I have no idea who the author of 'tensei inja wa hokusoemu novel' is. There's no information given to suggest who might have written it.
I'm not sure specifically what 'tensei inja wa hokusoemu novel' is about as it's not a widely known common title. It could be a very niche or new work.
I'm not sure specifically as there could be many different stories with this title. It might be about a prince in a reincarnation or isekai setting which is a common theme in light novels.
Since I haven't read it, I can't say for sure. But based on the title, it seems that a reincarnated sage and a girl are important characters.
Since I'm not familiar with 'tensei kyuuketsukisan wa ohirune light novel', it's difficult to give a detailed account. However, generally, a light novel often has elements such as unique characters, a fictional world, and a plot that may involve adventure, romance or mystery. Maybe this one has a vampire - like character who has some interesting experiences during the afternoon time as the title seems to suggest.
I'm sorry, I don't know who the author of this novel is. There are so many isekai novels out there, and without more information, it's hard to determine the author.
Sadly, I don't have information regarding the author of this 'jk haru wa isekai novel'. It could be a relatively unknown work or from an indie author. You might want to search for it on specialized Japanese literature websites or forums where fans of isekai novels might be able to help you out.
I don't know who the author of this 'tensei kenja no isekai raifu novel' is. There are so many novels in the isekai genre that it's hard to keep track of every author.
You can try looking for it in some well - known online light novel platforms like J - Novel Club or BookWalker.
I'm not sure exactly as I haven't read it. But generally, a light novel often involves a unique story, perhaps in this one it could be about a vampire (kyuuketsuki) and their daily life including an afternoon nap (ohirune).
The unique plot is one of its attractions. It often has interesting twists and turns that keep readers engaged.