Synopsis: Bijinzaka Private Girls High School

Nonomiya En was expelled from her previous school after being suspended three times. To rectify this, her father obligates her to attend Bijinzaka, a renowned all-girls' high school that emphasizes nurturing sophisticated and cultured young women. Nevertheless, upon her arrival, En realizes that the school culture does not match her own principles and decides to leave abruptly. While making her escape, she runs into Narushima Chihiro, a first-year student from Jouyama High, an all-boys' school located atop the adjacent hill.