Male. Birthday is July 8th. 170cm. Captain of the Shinsengumi's 1st Division. Despite his young age, he holds the title of the Shinsengumi's strongest man. Contrary to his fresh appearance, he has a considerably twisted and warped personality. He is a severe sadist who enjoys tormenting others, a sharp-tongued cynic who turns people's stomachs, and a troublemaker who acts selfishly in every situation. On the other hand, he is the individual within the Shinsengumi with the strongest sense of justice and duty as a police officer. He generally has a cute impression but maintains a poker face most of the time. Aside from occasional smirks, he rarely laughs out loud, and even then, it's usually a mocking sneer. Despite being a cop, he is delinquent and self-indulgent. He slack off at every opportunity, taking naps with a uniquely designed sleep mask or plotting various schemes to screw over Hijikata Toshiro. He frequently causes chaos whenever he is deployed. He is stubborn, highly competitive, and hates losing. Like a child, he stakes his life on trivial competitions, and it goes without saying that he causes great collateral damage in the process. With a bellicose nature, he doesn't just hate losing; he enjoys fighting itself. Surprisingly, he is very loyal and affectionate. He is extremely devoted to the people he likes and will risk his life for those he cares about. He turns into a gentle lamb in front of his older sister, Okita Mitsuba, being a severe sister complex case. (Mitsuba is currently deceased.) According to Hijikata Toshiro, who is tormented to death by him, he is the 'Prince from the Planet Sadist.' This fact is so famous publicly that when Okita causes trouble, newspaper headlines read things like 'Sadist Prince Causes Trouble Again.' He seems to address women older than himself as 'Sister.' Brown hair and red eyes.