The story follows the everyday lives of high school girl Yoshiko Hanabatake, known to be stupid academically as well as socially. She constantly hangs out with and annoys her studious and serious neighbor Akuru Akutsu, whom Yoshiko’s mother wants her to marry. Yoshiko becomes friends with the level-headed Sayaka Sumino, who, along with Akuru, try to keep Yoshiko in check. The Public Morals Chairwoman dislikes the free-spirited Yoshiko but when Akuru makes some casual remarks that compliment her, the chairwoman falls in love with Akuru and begins stalking him while repressing her perverted thoughts. Yoshiko also befriends a delinquent guy Ryuichi Kurosaki who thinks of Yoshiko as a gang leader, a group of playground kids, a group of gyarus, and some other students and staff at school.