Blue Limbo is the ninth solo album by Susumu Hirasawa.

The dystopian themes of the album were influenced by the Iraq War and the remaining traces of the Cambodian Civil War.

One day before its release, "High-Minded Castle" and a new re-recording of "Love Song" from Aurora were given away for free to be used as a way to protest against the American response to the September 11 attacks and the compliance of the Japanese government to those actions.

[1] All tracks are written by Susumu Hirasawa