Said it before but it really is dragging on. To be honest I can't imagine there's that many chapters left since she's going to study abroad, unless some for some weird reason she decides not to.
Will probably be a timeskip where they reunite around/after graduation, but if for some reason Junichi goes along with her then it's just going to be another long ass set of chapters of baiting romantic development between them, but nothing actually happening until the very last chapter.
Also, I bet a few people have wanted them to actually bang already and I find that kind of thing a bit refreshing in romance series because it opens up more ways they can expand on the relationship between characters, but considering this manga is all about "first times" I'm pretty sure that will be saved towards the very end, might be wrong though.
Probably going to come back to this series in a year, or at least several months, the updates are sooo damn slow for the amount of pages we get.