this series has such a great title I really hope it follows through on that energy, and doesn't just have the girl be with Mr generic for 90% of the series while getting with the other girl right at the end.
with how little f/f/f polyam stuff there is in general it's kinda depressing that one of the few times something actually feels set up for it the author goes for the mono route
iirc she said she was done writing yuri at least for the time being but she still planned on including girl-girl couples in her works. Nakatani also has a pretty good track record of not having adults be creepy towards minors so I don't expect any sort of weird age gap thing.
I didn't expect the comedy yuri manga about a girl crushing on her friends mom to actually talk about a common experience late bloomer lesbians have it's really refreshing to see.