With the hindsight of a year or two, that one part feels even more surreal. Most of volumes 1-2 conjure a pretty straight-forward smutty romance with a dubcon and "straight girl" conversion theme, but then... The reader is probably not supposed to think anything of what happened in chapter 8-9, and were it a random one-shot I wouldn't either, but the speed at which the story moves on and switches gear to romance and coming-of-age fluff turns it into an elephant in the room for me. I know I'm supposed to forget about it, but... I mean, it's right there.
This is not meant to be criticism exactly, I'm just processing. I find the decision to interrupt the lighthearted lesbian smut with unambiguous sex crimes, only to sweep them under the rug expeditiously, fascinating. It's exactly because the rest of the story is so cute that that part sticks out so much to me. Rather than 'unrealistic' its very randomness makes it feel more 'realistic', even though Teren Mikami, agent of chaos that they are, probably just thought it would be funny.