For over a century, Aizen masqueraded as a benevolent Shinigami officer while secretly plotting his betrayal and conducting depraved experiments, which around 100 years ago led to the Hollowfication of the Visored and their (alongside Kisuke Urahara 's) forced exile. Aizen asks Renji if he believes Rukia Kuchiki deserves to die. Aizen notes the strangeness of Rukia's execution. Aizen and the other captains assemble for a meeting. Aizen reveals that he has a question for Gin. Aizen and the other captains are alerted to the presence of intruders in the Seireitei. Aizen warns Gin he is suspicious in front of ... Read more information about the character Sousuke Aizen from Bleach? At MyAnimeList, you can find out about their voice actors, animeography, pictures and much more! Sōsuke Aizen is the main antagonist of the manga and anime series Bleach, who betrays the Soul Society and seeks to become its ruler. He is a powerful Soul Reaper who uses a zanpakutō called Kyōka Suigetsu and a device called Hōgyoku to transform himself and manipulate others.