The soothing older sister Miu Arioka becomes a private tutor in a "private lesson on sex." The carnivorous older sister Mayu Suzuki brings a pretty boy into her room and has sex with him! The two team up to play two busty sluts! The excitement of the young body and big dick gets them all excited! The boys are bound to faint as they are mounted! We bring you a volume-packed 170 minutes of the older sister's sweet, nasty, dense and intense raw eroticism!