When Ken, the leader of the once-notorious biker gang of Tokyo, falls in love with a barmaid, he quickly loses his rebellious ideals. The rest of the gang feels betrayed, especially the reputedly troubled kid Jin who revolts against his former friend.
After the director's message, "I visualize the romance of Roman Porn and I attempt to share that image," a loosely-connected series of softcore sex scenes unfolds. The plot concerns Kyoko, a young Japanese woman married to a man in France. When he abandons her, she returns to Japan. With her sexual appetite now at a high pitch, she engages in sexual escapades with a wide assortment of people, including old friends, both male and female, and an entire soccer team.