This manga is going to tear my heart out and stomp all over it if by the end of the fifth volume we don't have a happy ending. If the future we see throughout this series ends up happening for them I'm going to cry so bad. Just thinking about it is making me tear up. I mean, they're all so close and to lose someone like that...jeez!
I hope that now we (and they) all know that they're in it together that Naho and Kakura get together and ten years from now that he's going to be there happy. Off to start volume 4.