Reality Subtext: Amoridere's sister, according to a note, had developed lupus during the writing of the fic, in which case, Satsuki being Delicate and Sickly is this retroactively, while the ending was written as Amoridere came to terms with the diagnosis.
Schedule Slip: There is a roughly 50 day timespan between chapters 40 (April 14th) and 41 (June 3rd). Likewise, there were about three weeks between chapters 51 and 52
What Could Have Been: According to the note, Satsuki was supposed to pass away in the last chapter but Amoridere liked the Bittersweet Ending better, opting to end the chapter with Satsuki surviving with a short life expectancy.
