DDU-042 Bombing! Boobs LABO: Defeat the Big-Breasted Insensitive Girl! Riko Mizusawa

Despite having magnificently large breasts, Riko is troubled by the fact that not only her breasts but her entire body is insensitive, so she visits the "Breast Research Institute." There, she is forced to drink a "pleasure inducer" and gradually becomes more sensitive as her large breasts are massaged. She is then subjected to low-frequency waves, electric massagers, and vibrators. She is restrained and has special lotion applied to her entire body, and undergoes pleasure treatments such as intense breast massage and intense deep throating, leading to complete sexual development. In a threesome with the director and the others, she shakes her large breasts as she goes wild and cums over and over again!