I dunno. Maybe this is really a 3 star book, there's not much here that distinguishes itself from other shoujo manga, school-based-stories, but it's my party, I'll laugh if I want to.
Komi Can't Communicate, Volume 3 is about a girl who social anxiety who has made a goal of making 100 friends. We have, predictably, final exams, summer vacation, beach scene, festival. Komi and Tadano meet outside of school but they share some awkwardness in sometimes seeing each other and not speaking. Relatable, for the thousands of people who have trouble communicating, sometimes to the point of paralysis.
I like that we get to meet Komi's family, especially loved the scene where she goes out with her Dad for shaved ice. You can see that some of what we assume are psychological tendencies may also be hard-wired, genetic, even neurological issues. But I like the peculiar mom and the grandparents, too. You see that kids who are socially shy with peers can be very verbal and relaxed and fun with family.