Okita, a handsome 20 year-old man, standing at either 176 cm or 178cm, with reddish brown hair in a topknot and emerald green eyes. He has a charming if somewhat sadistic personality and is fond of sarcasm. He enjoys pulling pranks on the other Shinsengumi members, especially Hijikata. 

He begins wearing a white sleeping robe all the time after Hijikata orders him to stay at headquarters due to his worsening illness. As tuberculosis has given him a failing sense of taste, Okita prefers strongly-seasoned food (to everyone else's misfortune when he's on cooking duty), but attempts to hide his condition.