It's a bit way too late to talk about this, but this duo...isn't their interest unhealthy at this point? Like, it's ruining who they are as people.

Their daily function depends on two people who barely know who they are. What are they gonna do when one or both of them leave the country for Stanford?
These two idiots should really be doing that "enjoying your youth" thing people talk about. Just going out and doing fun stuff together.

The good old days, when Karen was still alive.

It's fun to reread old main series chapters to get the references. This one occurs during the summer vacation in Chapter 41 of the main series, and the last page of this mimics the last page of that chapter.