Arc 13Aizen’s Betrayal and Aftermath
Ailin intervened in the Seireitei’s conflicts as Aizen revealed his survival and fled to Hueco Mundo with Gin and Tōsen. After the upheaval, the Gotei 13 took over Seireitei’s administration, Rukia accepted a captaincy recommendation, and the captains began considering replacements for vacant posts.
- Ailin punished Gin Ichimaru and Toshiro Hitsugaya for fighting near his home, then separated Toshiro from Hyōrinmaru to force him to improve.
- Zaraki Kenpachi and his allies tried to free Shino Madarame, while Rukia discovered the murdered Central 46 and Aizen revealed that he had survived.
- Ailin rescued Rukia from Aizen, then blocked Yamamoto from reaching Ichigo as Ichigo fought Gin and Esdeath challenged Yamamoto.
- Aizen exposed his role in the Hollowfication incident, took the Hogyoku from Shino, and was confronted by the captains as Gin and Tōsen revealed their allegiance to him.
- Aizen, Gin, and Tōsen escaped to Hueco Mundo through Garganta, while M Matsumoto Rangiku watched Gin depart and the Seireitei learned the scale of the killings.
- At the captains’ meeting, Ailin confronted Yamamoto over the punishment of commoner Soul Reapers and demanded equal accountability for Tokinada Tsunayashiro.
- Ailin rescued Uryu Ishida from Mayuri Kurotsuchi’s laboratory, and Rukia accepted his recommendation that she become Ninth Division captain.
- The Gotei 13 assumed Seireitei’s administration, and Ukitake nominated Kaien Shiba and Rukia for vacant captaincies while Ailin rejected several candidates for the Third Division post.