Yeah I agree with all that! Definitely a bit too much school life stuff near the start. The story starts to get properly interesting around the halfway mark, but also branches out so much that it's hard to follow. I'd love to see a similar game in this setting, with an equal complex story but told in a more standard way.
Also yeah Megumi's part kinda sucked. Didn't ever get interesting.
Thanks for the clarification on those bits!
That's interesting to know, thanks! Most coffee shops where I live would probably never get busy enough to use a spare shot. Perhaps they change out to a single shot portafilter, but I've never noticed.