Well I wasn't expecting that, although I found it rather wholesome as I have many trans friends.
Although it felt very ham-fisted in the way it was done. To be honest going though and re-reading the authors other story has kinda put this one to shame. The problem Is that I believe if this arc was finished and we got onto the end game the story might redeem itself some what.
Also I believe the reason this arc has been stretched out, is that the author is trying to figure out what comes next and isn't having much luck, as they probably want to keep this story going or are being asked to do so by their management. But they probably had originally planned to end the story after the conclusion of this arc.
Thanks
genderbenderbb2 for the translation your profile name is very fitting this chapter.