Gotei Juusan Tai

A mysterious reiatsu (spiritual particle) explosion occurs in the center of Seireitei in Soul Society, causing it to be destroyed. At the exact same time, a major change overwhelms Kuchiki Rukia, which leaves her losing something important inside. Urahara Kisuke sends Kurosaki Ichigo to Soul Society to investigate the disturbance. Upon reaching Seireitei, Ichigo is set upon…

In Karakura Town, there has been a sudden outbreak of unidentifiable spirits called blanks (vacant souls) while in the skies of Soul Society, the real world has been reflected. A mysterious female shinigami called Senna has appeared before Ichigo along with a man named Ganryuu, leading a group called the Dark Ones. Source: ANN

When an artifact known as the "King's Seal" is stolen during transport from Soul Society, Hitsugaya Toushirou is assigned to retrieve it. Toushirou goes missing after a battle with the thieves, leading Seireitei to suspect him of treachery. They order his immediate capture and execution. Unwilling to believe him capable of such a crime, Ichigo, Rangiku, Rukia, and Renji set…