12x15Wonderful Error Episode Summary Aired: Tuesday July 7, 2009
In the real world, much of the main class is attending their first day at Karakura High School. Ichigo and Chad met and befriend Keigo Asano and Mizuiro Kojima while saving Keigo from some thugs. Orihime meets Chizuru, who tries to woo her only to be kicked in retaliation by Tatsuki Arisawa. In Soul Society, the lieutenants meet and decide to promote Renji to Lieutenant of the 6th Division and send Rukia to Karakura Town. Renji discusses his promotion with his friends, but decides to make it a surprise for when Rukia gets back. Rukia, after speaking with her captain and third seats, heads to Karakura town, at the same time as the first episode begins.