This volume is just one whole story, about everyone losing their memory. It's kinda funny, but it has its creepy moments, between Keichi and his sister...Thought it was odd that Fujishima would put that in there. Since when is it "funny" or "cute" that a brother and sister don't remember each other, and are momentarily convinced that they are married?
I just found that the loss of memory was a bit cliched, and most of the story is everyone wandering around, trying to figure themselves out, in not a particularly entertaining fashion. It could have been handled very differently, but it feels like Fujishima just took the easy, lazy way out.
And Keichi is still a wuss when it comes to even holding Belldandy's hand.