Kei Karuizawa

Kei Karuizawa is among the students with excellent grades in class 1-D.

Appearance
She is a teenage girl of average height with purple eyes and long blonde hair with a ponytail and the rest of it extends to her back.

Personality
She's known to be someone who has a character issue.

Kei is an outgoing person, spending most of her time with the girls in school and Yōsuke Hirata, her "boyfriend". Kei is also someone who speaks for the girls in the class, acting as one of the leaders of class D with Yōsuke and eventually Suzune Horikita. She is dubbed as the 'Empress'.

Trivia

 * As Class D is a class for people with defective traits, her defect is that she has a character issue.