Search - 4rchive

>I was reincarnated a-
Just write a normal fantasy story, he doesn't need to be from another world.
>But I need the protag to b-
Then make it so. You're the writer. Make him whatever you want. Anything from a crippled dirt farmer to a godslayer.
>But I want his modern ideas t-
You can have modern concepts in fantasy, there's no rule against it.
>Historical accura-
I thought this was a different world.
>But the world has weird rules an-
These weird rules (you know damn well you mean RPG elements) can be part of a fantasy world.
>But I need the protagonist to have special knowle-
Then make him a genius or a scholar or a philosopher or an activist, that's more interesting than some salaryman aping off thousands of years of combined human knowledge.
>But people will resonate better wi-
The entirety of fantasy and sci-fi laughs at you.
>I need to explain the world to the rea-
Skill issue on your part as a writer, besides you can write a lorebook for those invested in the world.

There is no reason to have one-way trips to "other worlds", just write a normal fantasy story.