I was most interested in the deeper self-reflection from Riri that was sprinkled in and then glossed over. It was never meant to be, but I would've loved to read about Riri's struggle with emotional permanence that stems from all love in her life being shown to her instead of implicit; how she feels detached from people's lives and unable to fathom that she means something to someone. Not even necessarily in a romantic sense, because I think Himawari's relationship with her was a good example of how it could've been written.
Unfortunate it had to end so soon, but I'm not disappointed. It was marketed as only two chapters from the beginning after all.