Hmm. Not really liking how Salaryman's taking more and more of a backseat. I mean, sure, I get that Ai-Chan and Vollyball-Chan are closer in age, but... I really hope Ai-Chan stays straight and that Volleyball-Chan gets her own love interest (boy or girl) rather than perving over Ai all the time.
Wasn't really too pleased by the fake-out at the end there, either. Maybe the cousins were dreaming the same thing, but I think this chapter could and should have ended differently. Preferably: with Salaryman waking up after controlling himself, being a little downcast, and then meeting Ai for their weekly train ride. I think that would have been nice.