"Back Blocks" is Misia's 11th single.

It was released on 20 November 2002.

It peaked at #7 selling 30,846 copies in its first week.

The third track, Tobikata wo Wasureta Chiisana Tori, serves as the theme song for the PlayStation 2 game Star Ocean: Till the End of Time.

All lyrics are written by Misia