Misa Kakizaki is a student at Mahora Academy, assigned seat number seven in class 3-A. She was born on May 15, 1988, under the Taurus zodiac sign, and has blood type O. Her appearance is marked by light purple hair and red eyes. She enjoys shopping, making trips into the city every week, but dislikes carbonated drinks.

Within the school, Misa serves as the leader of the class's cheerleading trio, which also includes Madoka Kugimiya and Sakurako Shiina. She is additionally a member of the chorus club and plays a role in the band Dekopin Rocket, where she handles guitar and lead vocals. Misa is known for her close friendship with Madoka and Sakurako, as well as with Ako Izumi, with whom she performs in the band.

Misa's role in the story is initially that of a supportive background character who becomes more involved as events unfold. During the Mahora school festival, she is part of a group organized by the class representative that sneaks into the martial arts tournament to watch her young teacher, Negi Springfield, in action. Impressed by his strength and popularity, Misa conceives a plan she calls the Reverse Genji Naru plan, which aims to cultivate Negi into an ideal boyfriend. This idea spreads among many of her classmates and becomes a recurring motivation for several characters throughout the series.

Her personality is sociable and trend-conscious, with a fondness for karaoke and a clear interest in fashion and entertainment. She tends to act as an initiator within her friend group, often coming up with schemes or ideas that others follow. While she is not a primary combatant in the magical conflicts that arise, her involvement places her among the students who gradually learn about the existence of magic alongside her close friends. The cheerleading group and band connections serve as a vehicle for her interactions with the wider cast, and her close-knit friendships remain a consistent element of her character across the series.