Mourning their deceased captain-commander, and thirsting for revenge on his killer, Kazetora Kasumioji, Simura Kiraiyane and Yoshima Okanade prepare to investigate the Dangai, a dimension between Soul Society and Human World. Meanwhile, Kujo Shihoin tries to control his inner Hollow. Soul Society, reunited, faces its greatest test yet: the attack of an unknown Hollow power.

Kazetora Kasumioji and her team return from their mission in the perilous Dangai to find themselves in the middle of a war. Struggling to accept his new identity, Kujo Shihoin disappears into the Soul Society to gain the strength he needs to defeat his nemesis, the Arrancar Rojo, and save his world and all others from the wrath of the being known as the Dark One.