I watched anime last year, and this year, I decided to read manga. I thought I might be able to grasp some more info but... it seems it just has to be like this. Again, I had the same feeling about twins' mother - such a weird feeling... perhaps it has something to do with the fact that she's one of those people who saw terrible things... and are still alive.
I love happy endings... happy, yet disturbing... you know, the last pages.