oh wow first post in 5 years on here.
Star Driver looks interesting and was on my to watch list but i'm not sure if my heart can take a similar pairing.
The song
The World of Tomorrow by Coparck makes me think of them. The lyrics don't fit really but the song makes me think of Code Geass (and Kallen/lelouch are naturally a part of that.) The sound/mood of it fits though imo. >_>