Aizen Sousuke

Name:Aizen Sousuke

Rank:Former Captain of 5th Division

Age:-

Gender:Male

Personality:Despite his current villainous status and former position of authority, Aizen is a surprisingly 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.

Skills/Abilities:
High Intellect
Master Manipulator
Master Strategist
Kidō Master
Enhanced Strength
Vast Spiritual Power
Master Swordsmanship Specialist
Flash Steps Master
Master Hand-to-Hand Combatant

History:
Little is known of Aizen's past, except that he spent much of his career in the 5th Division, eventually becoming its Lieutenant under the former Captain, Shinji Hirako. Shinji kept Aizen under his view during this time because he felt there was something dangerous about him. Also, during that time, Aizen met Gin Ichimaru and Kaname Tōsen, and somehow managed to lure them to his side.
Captain Aizen and Lieutenant Ichimaru
100 years ago from the current time, Aizen engaged in early experiments on Shinigami/Hollow hybrids which involved using an unknown device to cause spirits to transform into Hollows. He is responsible for turning his former Captain Shinji and 7 other Shinigami into Vizard's in the first place.
Aizen became Captain of the 5th Division later on, and Gin eventually became his Lieutenant and right hand man. Gin and Tōsen later became Captains of the 3rd and 9th Divisions, respectively, but remained loyal only to Aizen. According to Aizen, even when Hinamori was his Lieutenant, he thought of no one but Gin as his subordinate.
At some point, he also saw the potential of Momo Hinamori, Izuru Kira, and Renji Abarai, and took them all into his division. While Kira and Hinamori were obedient and loyal, becoming the Lieutenants of the 3rd and 5th Divisions under Gin and Aizen, respectively, Renji proved to be too rebellious and was transferred to the 11th Division (and later to the 6th, where he too became a Lieutenant).

Picture of Character:Avatar