@Marcus_Couffaine Hey there, do you take suggestions for new stories? If so, then how about this one for a One Piece reverse-isekai story;
A Marines ship whose captain is a Devil Fruit user ends up getting caught up in a whirlpool that had a dimensional portal in it. The portal took the ship and its crew to waters unknown. They find themselves no longer in their own world, but in a new world entirely, Earth. Particularly off the eastern coast of the U.S., and they were taken in by the Coast Guard to stay at a Naval base. They now must find their way in a world where there are no sea monsters, no pirates (not like the ones they're used to), no World Government (though the U.N. could be the closest thing to it), no World Nobles, no Grand Line or Red Line, and most surprising of all, no Devil Fruits! Plus, the currency, technologies, and ways of living and governance are different, too. What's the Marine Devil Fruit user and his crew to do?
I'll understand if you're not up to it.