Invasion of Soul Society

The Invasion of Soul Society was a major conflict detailing Sōsuke Aizen's and Gin Ichimaru's attack on the Real Karakura Town located in Soul Society, and the final battle between Ichigo Kurosaki and Sōsuke Aizen

The conflict started when Aizen and Gin arrived in Soul Society where the Real Karakura Town was located and started to chase down Ichigo's classmates, Keigo Asano and Tatsuki Arisawa

The conflict ended when Ichigo arrived after having learned the Final Getsuga Tenshō to confront Aizen in a final battle and defeat him. Aizen was then sealed by Kisuke Urahara and Ichigo lost his Shinigami powers due to the use of the Final Getsuga Tenshō.