Sosuke Aizen

Sōsuke Aizen is the main villain of the anime Bleach. He appears in Sōsuke Aizen vs. Madara Uchiha.

History
Sōsuke Aizen (藍染 惣右介, Aizen Sōsuke) is the former captain of the 5th Division in the Gotei 13. He later leaves Soul Society with his followers, Gin Ichimaru and Kaname Tōsen.