Nageki no Kenkou Yuuryouji / Frenzied and Unsatisfied

Poor little Hiroge is a perfectly ordinary healthy girl and quite good-looking, but she is unable to achieve orgasm no matter how hard she tries or how many boyfriends she changes. Soon her lesbian friends decided to come to her aid. The girls are quite resourceful and bold in terms of sex, which soon brings Hiroge to her intended goal...

 Video restored.