SONE-716 "Hey, isn't your only redeeming quality titjob? Squeeze it and make me cum." The originally gentle me turned into a cold-hearted sadist because of this slim big-breasted, extremely masochistic woman. Arina Shinzato

The originally gentle and kind male protagonist undergoes a complete transformation into a cold and ruthless sadist (S-male) after encountering a slender-figured woman with massive breasts and an extreme masochistic tendency (M). The film revolves around this twisted relationship, with the male protagonist subjecting the female protagonist to various forms of training and humiliation. The focus is on her titjob skills as her sole "virtue," as the male protagonist repeatedly commands her to service him to ejaculation with her massive breasts. The story depicts the psychological shift from tenderness to dominance, as well as the mutual descent into ecstasy within their SM dynamic.