Kagami

Kagami's physique is average. She has long, messy, light purple hair tied into twin tails with purplish-brown ribbons. Kagami has pointed "tsurime" eyes compared to Tsukasa, and is sometimes shown to have quite pronounced curves. She has slightly messier hair than her sister.

Her school uniform consists of a white long-sleeved blouse that looks extremely loose and makes her look thin. The sleeves of her blouse have dark salmon pink-colored cuffs with two thin, white horizontal stripes going around them, and a dark salmon-pink collar that also has two thin white stripes, with a light salmon pink necktie that is often shown in the anime without a knot, resembling a butterfly. Her skirt is short, reaches her upper thighs, and is the same color as her collar and cuffs. She also wears white socks that reach the middle of her calves, and black loafer-like school shoes. 17 years old, 157cm tall, Japanese.

Kagami is the older twin sister of Tsukasa Hiiragi, and she has good relationships with her friends, Konata Izumi and Miyuki Takara. Kagami is the stereotypical Tsundere in the group. She's a bit egotistical, and somewhat weak in common household chores, such as cooking and cleaning, unlike her sister Tsukasa, who excels at cooking. She can be the straight and intolerant type. However, she is prone to become shy and lonely at times. Kagami is constantly attempting to hide the fact that she has a deep sense of attachment to her friends, especially Konata.

She really does care about Konata and is almost always willing to go places or do favors for her. Kagami often criticizes Konata for lack of motivation and her tendency to be a troublemaker, which usually results in Konata becoming very defensive. Kagami is usually annoyed by Konata's constant references to her otaku interests, but usually has an idea on what she is saying.

Kagami appears to have an unhealthy obsession with her weight, which Konata always seems to make a joke out of as well by offering Kagami a pocky stick or teasing her by saying her internal food alarm clock is broken. Kagami likes reading light novels, unlike Konata, who prefers to read manga. Kagami is a very good team leader and likes to get things done.

Kagami is Tsukasa's sister and is occasionally referred to as "Kagamin" by Konata. In school, her grades are excellent because she studies very hard. When Kagami was in seventh grade, she made it into Ryoo High School and was made the class president in her first year. Kagami always seems to be put in the same class as Misao Kusakabe and Ayano Minegishi. She has been in the same class as those two since fifth grade. She is always in a different class than Konata and Tsukasa, but she frequently comes to their class during lunchtime to eat with them, to the point where she is on a given name basis with their class but not with her own classmates. Kagami is often shown wishing she could be in the same class as Konata. Kagami chose the humanities course in her second year so that she could be with her, but she was separated into a different classroom. Kagami also volunteers as a Shrine Maiden at a local Takanomiya Shrine, alongisde her sister.