Girls living in provincial cities are being swallowed by the flow of information from urban areas, gradually losing their sense of self. Influenced by TV and magazine advertisements, they act according to trends, performing as "modern-day schoolgirls." Featured in Volume 1 is Hanako, an 18-year-old girl from City M in Chiba Prefecture. Coaxed by an older boy, she gets carried away—slowly and gently taken advantage of, then later sucking on a lower-body microphone in a karaoke room—experiencing a variety of sexual encounters. Within these extraordinary moments outside her daily routine, she indulges in the pure, fleeting thrill of youth.