SOLVED. YA Post Apocalyptic/ Sci-Fi book series set a couple of centuries after the Earth got dismembered in islands floating in the sky over a cloud-covered void. Spoiler. [s]

[Elvis1404]

Around 2070 some kind of "Event" destroyed the Earth, turning it into islands (usually archipelagos of them, often representing pre-Event nations and/or cities) floating over a void covered by a layer of clouds. A couple of centuries later, the protagonists (at least a young man and woman, but they were part of a bigger group) live in a village on one of the floating islands, but the island's water (collected from the rain, I think) is ending because the rains lately are getting scarce; but then someone theorizes that all the world's water must have ended in the void, under the layer of clouds, where the atmospheric pressure is so high that no one has ever been to. During the books there are a few "Flashbacks" of the world just before the event (notably, the first one is just at the start of the first book), always narrated from the perspective of a scientist woman character, used to clear a bit of the "lore" behind the Event.

The only clear part of the plot that I remember is (view spoiler)[ that (probably in the second book) the protagonists fly (with some kind of airship probably) to the flying pieces of what remains of London, to reach a secret laboratory where a nuclear powered prototype spaceship, capable of surviving enormous pressures, was getting built before the event. Here, they fight some kind of Mad-Max looking british punks and have to survive heavy radiations in the laboratory (the ship's reactor got damaged during the event centuries before); after this, they bring the ship to their home island to repair it and prepare to go into the void to find the disappeared world's water, but the book finishes here on a cliffhanger. (hide spoiler)]

I am pretty sure this was a book series, and that I've read the first two books, I hope that a third book exists to end the story. I read those two books probably around 2014-2018, they looked like recent books (surely written after 1994 as the Eurotunnel between France and England was mentioned in the "flashback" at the start of the first book). They were written in italian, but I'm pretty sure the author didn't have an italian name, he/she was probably European though since that's where (as far as I remember) the book takes place.

[SBC]

The Mirror Visitor series by Christelle Dabos came to mind (Earth shattered into sky islands) but it doesn't really fit the rest of your plot description: https://www.goodreads.com/series/1054...

Hopefully your book might be captured on this list if you'd like to have a look:
https://www.goodreads.com/list/show/1...

[Ayshe]

Islas en el cielo maybe?

[Elvis1404]

Ayshe wrote: "Islas en el cielo maybe?"
Yes, this is the book (actually, mine had the italian translation of the title), I finally found it, I was starting to think that I imagined it. For some reason I completely forgot the "seijin vs jinsei" aspect, but everything else perfectly fits what I remember, especially the second book of that series that is, in fact, a trilogy.

Thank you a lot

[Ayshe]

Elvis1404 wrote: "Ayshe wrote: "Islas en el cielo maybe?"
Yes, this is the book (actually, mine had the italian translation of the title..."
Great, you're welcome! It looks like they were published under pseudonym and the Italian is probably the original.