Sōsuke Aizen (Kieronrob)

Sōsuke Aizen (藍染 惣右介, Aizen Sōsuke) is the former captain of 5th Division in the Gotei 13; he later leaves the Soul Society with his followers, Gin Ichimaru and Kaname Tōsen. His Lieutenant was Momo Hinamori. After waging war against the Soul Society with an army of Arrancar, Aizen was Defeated by Ichigo Kurosaki and then Sealed away by Kisuke Urahara.