Ruri Akutsu

A dedicated fifth grader and the younger sister of Akuru Akutsu, this hardworking student strives to become both intelligent and reliable through intense study. Despite her best efforts, her frequent failures lead Yoshiko Hanabatake to label her a fellow dimwit. While Ruri possesses much more common sense than Yoshiko, she occasionally displays childish traits. Driven by a desire for excellence, she harbors a deep dislike for Yoshiko and fears accidentally inheriting her chaotic personality.