After school, a high school girl is engrossed in masturbating on the roof of an empty warehouse. Then, from behind, she hears a voice saying, "I was watching the whole thing." The high school girl is surprised and flustered, but when the peeping man orders her to continue masturbating, her body reacts on its own. As things progress, she has outdoor sex, and the unprecedented pleasure of shame awakens her pervert side. The peeping man orders her to perform extreme shameful commands in the car and at tourist spots, saying, "I'll help you with your hobby, young lady...", and the high school girl is awakened to her true masochistic side. She begs for the dick and goes crazy with raw sex, transforming into an extremely lewd pervert...