Chika Takami, a self-proclaimed regular girl, has never been to a club and possesses no outstanding abilities. After a trip to Tokyo, she finds a world where even an ordinary girl like her may shine—the world of school idols. Chika is inspired by the past superstar school idol group's and is determined to launch her own school idol club at Uranohoshi Girl's High School in her coastal village. However, even before attracting any kids to join the organization, the aspiring school idol encounters her greatest roadblock in the form of student council president Dia Kurosawa, who is vehemently opposed to the formation of the club. When it appears like there is no hope, Chika meets Riko Sakurauchi, a transfer student from Otonokizaka High School, the alma mater of's.