Kamo Serizawa

As the supreme leader of the Shinsengumi, this individual holds the ultimate authority within the organization. Possessing a brilliant intellect, they are known for being easily angered, conceited, and intensely self-focused. This volatile and arrogant demeanor is the primary cause of the Shinsengumi's infamous reputation in Kyoto, leading to significant friction with figures like Kondou and Hijikata.