After her boyfriend abandoned her, Sayaka, who works as a kindergarten teacher, must engage in adult activities to pay for her relocation costs. However, her inaugural acquaintance as a prostitute is the parent of one of her pupils, Andou-san. Despite raising his son single-handedly and accompanying him to school daily, Andou-san instructs Sayaka to abandon her work and return home without completing any tasks. Sayaka objects, and now Andou-san intends to gratify himself until their time is done.
