More like 3.5⭐ because it has so many misunderstandings and it's my least favorite plot device ever, but rounded up due to how well-written it is. For that reason, this volume can be pretty frustrating to go through. Sakuma, Ushio, and Natsuki are all going through various forms of self-loathing in their attempt to deal with conflicting emotions, which depicts the woes of teenagers very accurately.
The underlying issues aren't exactly solved yet, so it feels a bit like middle book syndrome since this volume focuses more on the culture festival instead of advancing the plot. The writing is slightly more introspective too compared to the first book, which might have added to that impression. The next volume sounds interesting though, so hopefully the story picks up there.