19-year-old slender big-breasted Hina is unaware of the 'vaginal orgasm' from spots like the G-spot and cervix. This project aims to develop her and make her cum repeatedly. Despite her youth, she has excellent sensitivity; during the initial development stage, her love juices flow freely, even squirting. If a penis is inserted at this point, she'll squirt and lose consciousness. If a vibrator hits her uterus, she'll scream 'It's hitting, no more!' In the latter half of development, she drools and faints. During the final sex, her vagina tightens, leading to an explosive internal ejaculation.
