The porcio is a secret erogenous zone that would normally remain dormant and never awaken. However, it was awakened by visiting a massage parlor that has a good reputation among beauty lovers. At first, it was just a typical full-body massage. However, perhaps the massage with oil led her to seek more of the "edge", more of the "inner", more of the "middle". Before she knew it, the masseuse's fingers had penetrated her vagina and reached Mitsuki's porcio. Once this happened, there was no going back. The data of the 100 million yen body had been tampered with, and even her inner muscles had become erogenous zones! She straddled the masseuse and was intoxicated by the pleasure of his penis reaching her porcio.