[Michan]

I don't know. But I think Virgin Road, Love Songs and Last Angel are connected with this pv. At the begginer I think she wakes up in Limbo and those random people/set like it was the end of the world or war represents the pain that people feel because they weren't good on their previous life (= committed sins) so that's the reason why they are stuck there.
Why Ayu is in Limbo? I thin is because in her previous life she wasn't a good girl (You can see her behavior in Virgin Road, for example).
I didn't understood why she was only walking and being there with the dogs -_-. (Maybe they are guiding her to the right way?)
But in the end when she saw the light I guess is like the crossover.
Anyway, I didn't like that much of the pv because is so boring and she is just standing there doing nothing x.x