Ougi appears as a girl with short black hair, black pupils, and pale white skin and is a junior of Koyomi Araragi at Naoetsu Private High School, as Ougi refers to Koyomi as senpai. Ougi claims to be Meme Oshino's niece.

In Hanamonogatari and Orokamonogatari, Ougi appears as a male.