Joined: Jul 2010
I think I caught the meaning of the title of Aimer's ED.
nine(9) = kyuu(9)
lie = uso
ninelie=kyuuso, which can also be written as 窮鼠 - a cornered rat. Which is what the characters are. That, and the lyrics of the song - from what I can make of them, are about abandoning hope and just fighting for your life between the walls of this savehold.
Anyhow, I might be wrong, but I thought I should share. ^_^