You could say she is transsexual as her sex effectively changed
While I am kind of here and there about how things have been with the last few chapters, I do somewhat agree with that much. Personally, I feel like it's more like: Tachibana starts out as a dude, magically turns into a woman, magically turns back into a male version of the woman that he was, realizes he'd rather be a woman, and now is magically a woman again, though awkward the timing was for both her and Jinguuji when that happened. Not that Tachibana was specifically like this before the first transformation, but rather that the events after that led her to deciding that she'd rather be a woman.
On that note, I'll miss loli Jinguuji, but oh well.
I dunno if other TSF manga are like this since I actually don't read much of that, nor do I watch it. This one's an exception for me for that, as well as Onimai, which I only ended up watching and not reading, but both are very fantastical in how they go about the sex bending. It's probably just me personally, but when it comes to that aspect of anything with TSF tagged right on the cover, I tend to not take it that seriously. I think it just takes me right out of the fantasy if I did,
and I partially regret looking in the comments for that reason. Makes me wonder how the JP side was taking this when it was happening, though.