Sousuke Aizen

_Height:_ 186 cm (6'1")

_Rank:_ Captain of the 5th Division

_Zanpakutou:_ Kyouka Suigetsu

Aizen is a polite, soft-spoken intellectual, often addressing his subordinates by their given names. He rarely shows any sign of alarm or distress and often has entire situations planned out well in advance. Whenever confronted, Aizen is casual and uncaring, attempting to draw out a conversation and make small talk, which often infuriates the one he is talking to. Aizen initially appeared to be a very kind, well-respected captain and was looked up to by many, especially his lieutenant, Momo Hinamori. However, there is far more than meets the eye when it comes to Aizen.