Overworked and stressed, a man struggling with his sexual performance discovers a rejuvenation massage parlor through social media. Drawn in by reviews praising heightened sensitivity, gentle stimulation, and guaranteed ejaculation, he decides to give it a try. His therapist is Mion—a charming woman who owns her own private esthetic salon. Despite her cute appearance, she enjoys seeing men experience pleasure during her treatments and takes satisfaction in guiding them to climax.