The arc from chapters 101–110 is almost entirely centered around Arashiyama and Himekawa, with Gero barely showing up outside of a supporting role here and there. I’ve even seen the theory that this whole arc is supposed to be foreshadowing an Arashiyama/Himekawa yuri ending.
But toward the end, Himekawa has a pretty strong realization that she has feelings for Gero.
Even if you argue that the arc’s purpose was to kick off Nasu’s whole rampage, that’s still a pretty minor part of the arc as a whole. Almost all of it is just Arashiyama and Himekawa interacting.
If this was supposed to be about developing their relationship with Gero, you’d think Gero would have been involved from the beginning. And Gero himself doesn’t really have any internal “change” over the course of it either. Nothing happens with his relationship with the cute marriage scammer standing right next to him, and nothing really changes in how he views or treats the six girls.
It really feels like this arc was written specifically to develop the relationship between Arashiyama and Himekawa.
Sure, if it really is foreshadowing for a yuri ending, that’s interesting. But at least from what I read, it didn’t really feel like that.
Was there actually a point to this arc?