It remains to be seen what the crux of this manga is because I haven’t managed to pinpoint it so far. What inspired the author to write this? Was it to delve into a purely hypothetical scenario that sounded intriguing? Was it an exploration of how someone who once seemed so far ahead of you...was just a product of her age after all? Was it to evoke a feeling of transience, as is common among Japanese works? Stories tend to head different directions depending on what the main starting point of the author was. I still don't know and it's keeping me hooked.
Feels like every chapter the author explores a different idea, keeps things fresh and exciting.