If being a girl bring so much trouble let's try being a boy by Wei_Yang (Ascendance of a Bookworm Fanfiction on AO3)
When I am searching through the AO3, I almost always filter by completed stories. But sometimes, either through links or searches on search engines, I would start reading something that was not yet finished.
The thing that I am enjoying the most in this story is the dynamics between Ferdinand and Myne. I am further along with the anime than the books (I watched both seasons of anime, but I am at book 2 of the first arc). So this story has a lot of spoilers for somebody like me. But I am alright with this, as it makes me more interested to read further.
And Myne making Ferdinand overprotective, causing Ferdinand basically ordering the gods is gold. :)
It also got me interested in a couple of new characters. I know we 'technically' met two of the Ferdinand's subordinates, but I am really looking forward to seeing them in the book as well. All of them seems like interesting characters.
The original premise, while interesting, it was not as important in enjoying the story. There were a couple of good moment because of this, but otherwise I do not see it driving the story forward as much as dynamics between Myne and Ferdinand.
In the original read, I read to chapter 24, I by now finished chapter 26.