Aizen Sosuke is a fictional character from Bleach. He is the former captain of the 5th Division in the Gotei 13; he later leaves Soul Society with his followers, Gin Ichimaru and Kaname Tosen. His lieutenant was Momo Hinamori. He is the main antagonist of the series. This character is popular among cosplayers. It can be portrayed by wearing cosplay Aizen Sosuke costume and cosplay Aizen Sosuke wig. This character is always present in a Bleach cosplay.