how much like her mother Asa sometimes is

I remember Kasamachi pointing out that he said a line that his father once said. I believed Minori also mentioned something along the lines of behaving like her mother.

It’s all these small little things that make this anime so realistic.

mortified when she does find out

I imagine Asa’s enlightenment would be the season finale. Makio’s enlightenment would be the series finale.