|Affiliation||Karakura High School Mathletes|
|Base of Operations||Nanami House, Kitakawase, Karakura Town, Japan, Human World|
Kugo Nanami (father)
Seisei Nanami (sister)
|Education||Karakura High School|
Kaoru is a often emotionless-looking individual, usually seen with a blank expression. She has short, light purple hair and and light brown eyes, with a noticable Beauty mark underneath her left eye. She sometimes wears light pink lipstick, and matching nail polish.
Kaoru is usually shown at school and as such, wears her school uniform consisting of a white, long sleeved shirt underneath a brown sweater-vest with a large red bow tied around her neck, with a short red plaid skirt, light red stockings, and dark black-dark brown loafers.
Kaoru is a brazen lesbian, openly displaying her sexual orientation without fear of rejection. As such, she tends to have more male friends than female, since most of the females she meets are afraid she will "like" them. Yoshida is one of the few females who didn't run away and showed her kindness, which caused her to fall deeply in love with hr.
Nevertheless, Kaoru rarely makes an advances on Yoshida and is unusually shy around her about her sexuality around Yoshida. As such, it took her a lot of courage to tell her about her sexuality, and even longer to accept that Yoshida wasn't lesbian. She seems to have moved on some, although she does still seem to have some love for her, saying that if Yoshida does ever want to "turn" lesbian, Kaoru would still be willing to be with her.