I might have completely lost the plot. What the hell is going on and why is he still in female form?
I think there is no reason, it's a genderswap because it sells. But the thing is that here is not even that, because normally in such a kind of story you would have an arc where the MC becomes more and more a woman, is confronted with some women problems and gets more and more used to it, and THEN they becoe as he is now.
But he seems to have completely accepted it already, in the beginig he took a potion to hide his identity from the schoo bully but now he is always a woman, and, for example, is annoyed by insults about his breast size. I think the author considered the male mc too boring and made him a woman. This MC has no relation to the male MC at the beginning, and the protagonist of this story is now simply a woman