 Ura thinks what she might be looking to when she fell down.Riko says that the records should never have been excavated as it shows only the stupidity of humans and there is only sadness which better forgotten to which Ura says he understands and accepts what she is saying though he wishes that it was wrong.He wishes that even a small patch of place of green is existing somewhere on the surface and says maybe the world can be restored if they knew more about the world of the past.