I ain't reading all that.
The discussions across the chapters were pretty entertaining... when they were quick one or two sentences. But when overanalyses like these sprout up over a mostly decent manga made by a single person at least trying to make an effort, I just roll my eyes out.
When this manga ends they could just make a sequel about onee-san, she's badass, hot as fuck, has a healthy relationship, got a lot of things figured out, but still knows her failings and deficiencies.
Also, Ueno and the foursome meeting up... 🤯