At the starting of R2 Lelouch is stripped of his memories by Charles and used in a prepare to entice out C.C., so when the Britannian troopers find C.C., they program to get rid of Lelouch because he's fulfilled his intent. During the Lost Agent arc, the reader learns that Soul Society planned to do this to Ichigo, specifically by utilizing them as bait to entice out Kugo Ginjo and then kill each.