Classical Sex-Zone / Classic sex zone

"Gakuen Genji Monogatari: Hadaka no Gen-chan Ippatsu Jukkon / School story of Genji: naked Gen, love at first sight" - based on the classic of Japanese literature "The Tale of Genji" and "Princess Kaguya" in 1988. 

The main character of the hentai, Genji Hikaru, has long dreamed of his literature teacher, Aoi-san. In many of his depraved erotic dreams, he imagined himself as Genji from the classic novel "The Tale of Genji", and imagined Aoi-san as his beloved. Soon the main character becomes the object of attention of his classmate Mirasaki-chan, but her attention only annoys him and distracts him from his beloved teacher. One day at a sports festival, Aoi-san became ill right in front of Genji. After talking with her brother, he learns that the teacher is terminally ill...