Akiko Tanabe

Akiko Tanabe is the daughter of Tatsurou Tanabe and Kiyomi Tanabe and the bratty 8th grader younger sister of Tatsumi Tanabe who likes to pretend she's young and innocent to coddle up to Junichirou Kubota. Akiko is a short girl with short brown hair that has star hairbands holding up her small pigtails. According to Tatsumi Tanabe, she passes off as a third grader in physical appearance. She wears her middle school sailor uniform. Her casual attire consists of a jacket and matching shorts, she also wears a simple hoodie.

Akiko is a feisty young girl who is considerably more intelligent and perceptive than Tatsumi Tanabe. She was also shown to have a crush on Junichirou Kubota (and be a little crazy about it), which shows that she seems to share the same perverse thought process as her older brother.