Event Year: 2004

5th Division Captain Sōsuke Aizen removes the Hōgyoku from Rukia Kuchiki's Soul and retreats to Hueco Mundo.

4th Division Lieutenant Isane Kotetsu informs the Gotei 13 that Sōsuke Aizen is alive as the latter reveals his machinations.

A conspiracy connecting several recent events in Soul Society is revealed.

Ichigo Kurosaki and 6th Division Captain Byakuya Kuchiki's battle reaches its conclusion.