Izumi is a girl in Hiyori's, Patricia's, Yutaka's, and Minami's class, introduced in volume seven of the manga. Like Patricia, she is also an otaku, but tries to hide it as she is an upper-class girl who is also class president. However, she runs into Hiyori on one of her shopping trips, who discovers her secret.
She is good at home economics, but is bad at art. She likes "cute" things and sweets, as well as coffee and milk.