@waldo220 If it was axed, it seems like the mangaka was told at least 10 to 11 months or so in advance, since the entire volume is clearly moving toward the ending. I suppose that if it was axed, it would've made sense for the publishers to tell her it was her last volume to wrap it up, but I'm not sure if monthly series have that much lead time. It's my opinion that it wasn't axed, but I have no actual evidence to back that up.
Also, you're among the commenters I'm most thankful for!
Edit:
I was going to mention this to a degree on the final credit page too, but:
Chapter 22 — Establish future plans, while feeling like they're steadily moving forward as they've advanced a school year.
Chapter 23 — Future of the cat cafe club is discussed.
Chapter 24 — Future of the cat cafe club is secured.
Chapter 25 — Wrap up of loose end of
Vice PrezDisciplinary guy liking Higurashi. Fukami-kun gets jelly, showing extent of his feelings. Also side ship.
Chapter 26 — Akio-chan gets jelly, showing extent of her feelings.
Chapter 27 — Meet the in-laws, Fukami family version. Resolve some of Fukami-kun's issues with family to a degree (mostly resolved by him changing, really).
Chapter 28 — Meet the in-laws, Higurashi family version part 1. Show Akio-chan's reasons for wanting to be a vet.
Chapter 29 — Meet the in-laws, Higurashi family version part 2. Akio-chan's issues with mom resolved.
Pretty much all loose ends wrapped up now, I think?
Chapter 30 — Slightly dramatic penultimate chapter showing how Fukami-kun has changed.
Chapter 31 — End.