The one question I've always had about the first volume is that Amano talks at one point about them being able to cool a beer by having Kana stick it between her breasts - which goes along with the normal story of ghosts being like a cold presence - but at other times talks about hearing her heart beat or her blood flowing. What is she pumping, anti-freeze?
The question I have about the second volume is - am I reading it right that no one but Amano (and possibly children) can see Kana? Kind of makes you wonder what the waitresses in the cafe thought when all that food disappeared...
