This is really one of the most unusal romance LNs I've read despite not having any other gimmick besides romance and the titular familial situation. It's the way the series delves into what people are thinking, what they're feeling, that gets me. That and the way it doesn't have a single protagonist, but switches viewpoint between the two of them, and often a lot of others too.
The other volumes were already very open about young people having all kinds of feelings, impulses and desires; this volume takes it quite a bit further, and at times stops, I'd say, just short of being erotica - while never being just that, because it's always also about people dealing with the complexity of their feelings and relationships. I think, at this point, it might be comparable to Scum's Wish - yes, there's young people having intimacy and sex, but it also serves the story foremost, and it's often obvious that the characters don't really know what they're doing, and what they're doing might be a mistake anyway.
This volume was a bit slower that the series usual; but even when not that much happens, we get to see the thoughts and emotions of the characters, which makes a lot of difference from just stalling, because there's always development, just not a physical one.
