Sosuke Aizen

Sosuke Aizen is a former Captain of the 5th Division of the Gotei 13, later becoming the primary antagonist in Bleach. He is known for his superior intelligence, manipulative skills, and immense power. He possesses a Zanpakutō named Kyōka Suigetsu, ***zen's deceptive nature makes it difficult for others to discern his true intentions, leading to an air of mystery around him. He shares a complex relationship with his seemingly loyal subordinates, Gin Ichimaru and Kaname Tōsen, though his ultimate rival is Ichigo Kurosaki, the series' protagonist. He transcends into a being with Hollow powers by fusing with the Hōgyoku, showcasing his relentless ambition and willingness to employ any means necessary to achieve his goals.