Unfortunately the weakest volume so far - feels like a series in a holding pattern between giant monster attacks. The subplots advance, but slowly - the exception being Shoto, who gets a lot more action than in previous episodes. Unfortunately, Shoto's main characteristics - he runs fast, wants to be an Olympian, and has a crush on Asa - aren't the most interesting parts of the comic and don't get much development here. He lands in new trouble but there's no payoff yet. There's no payoff to anything, honestly, beyond Asa's friend Miyako making a choice which was heavily telegraphed last volume.
Urasawa is a good enough cartoonist that even a boring volume looks good and reads well. There are some lovely sequences in here - the whole subplot with Kasuga attempting to become a cosmetics salesman is adorable, for instance. And Urasawa's love of history, so evident in Billy Bat and 20th Century Boys, is one of his most winning traits as a creator, so it feels a bit churlish to criticise him for indulging it. The 1964 Olympics here is playing the same kind of role Expo 1970 and the Moon Landings did in those previous works - a pivotal TV event taking place in the background and affecting the main plot via our characters' responses to it. It just doesn't work for me this time as more than interesting texture.