The attendant was in on it, wasn’t he? I thought he asked them to take pictures. If I were them (kousuke and the girl) I would report this to the cops and mention the attendant.
As for kousuke, like I said before, I can’t see this ending well for him. He’s been warned before. If the cops gets involved, I doubt they’ll look very kindly towards him even though he was defending her.
I’ve also said this before and I still maintain it: relationship like them (age gap so big that they could be a parent and a child) is only good in porn; imaginary. Reality is harsh. In life, people don’t take kindly towards massive age gap. I’m sure there’re a few examples from Hollywood or others. “Love is blind” easy to say that when it’s not someone you know or care about.
As for the girl, why is it that they never run as they’re told? Why did she simply freeze there? What did she think would happen to her once they beat kousuke? Didn’t she have any common sense? Oh wait, this is a manga lol