Hidden camera footage from a high-end massage parlor in Aoyama, catering to fetish enthusiasts. A therapist demonstrates and carefully instructs the proper method of masturbation that effectively stimulates female hormone secretion. Each woman, with different goals and body types, learns techniques suited to her own needs while pursuing pleasure. The first is a smooth-shaven college student aiming for body slimming, who learns the nuances of self-pleasure under the therapist's guidance. They press on erogenous acupoints of each other's genitals, intensifying their pleasure. The second is a female cram school teacher learning how to touch her genitals. Following the therapist's example, she uses her own fingers to stimulate acupoints inside her vagina, trembling with pleasure while trying to suppress her moans. The third is a petite 30-year-old woman who works at a funeral home. Receiving self-care instruction, they massage each other's breasts while mutually stimulating acupoints within their female organs. Amid wet sounds, they tremble with pleasure, and in the climax, she writhes uncontrollably with vibrating devices, lifting her hips off the bed and moaning intensely.