Arc 6The Seireitei Invasion
Rei built his Arrancar forces while Aizen manipulated Soul Society and pursued his own Hōgyoku, then launched an assault on Seireitei to reach the Great Spirit Book Gallery. The battles remained unresolved when Yama-jii sealed the Garganta and trapped Rei’s forces inside Seireitei.
- Rei ranked his Espada, monitored Aizen’s experiments with the Hōgyoku, and began probing the Quincy’s strength, while Gin and Rangiku’s childhood paths led them toward Soul Society.
- Baraggan defeated Quilge’s forces and captured Cang Du, but the Quincy invasion of Las Noches ended in heavy losses before Ulquiorra brought Nel, Pesche, and Dondochakka into Rei’s army.
- Aizen and Gin triggered the Hollowfication of Kensei’s group, while Rei sent Espada and Hollows to attack Seireitei and confronted Aizen in the Sixth Forest.
- Rei’s forces stole Aizen’s incomplete Hōgyoku, while Urahara and the Hollowfied captains escaped Soul Society after Aizen’s deception turned Central 46 against them.
- Rei used the Hōgyoku to evolve Grimmjow and strengthen his Espada, while Aizen forged another Hōgyoku and Soul Society prepared for future threats.
- Byakuya encountered Hisana and defended her and the townspeople from Hollows, then defeated Luppi as Rei’s forces opened a larger assault on Seireitei.
- Maki entered the Great Spirit Book Gallery as Grimmjow and the Espada engaged Soul Society’s Captains, including Kenpachi, Mayuri, Byakuya, Kyōraku, and Ukitake.
- Yama-jii ordered the Garganta sealed, trapping Rei’s forces in Seireitei, while Rei’s technicians lost contact with the Espada and Rei remained confident they could handle the barrier.