When You Find You...Come Back To Me.
Ah, one of these days i'm gonna post my reaction on the No.6 Anime, but until then i'll be posting things like this :3
So, i was on tumblr (Awesome site btw) and i listened to Come Back to Me by David Cook and like the person who posted it, i totally think this song fits the part when Sion and Nezumi part ways.
Here's the vid w/ lyrics
Click to view*listens to video*