3D hentai "Imbalance Girl / アンバランスガール" shot on Studio Shizukugumi in 2004. At the time of release, the video could boast of excellent graphics, fully voiced heroine, 100 separate cut scenes and more than 17,000 frames. 

A young and inexperienced student of Rio has long dreamed about a guy and how they will meet and love each other. However, sometimes her fantasies go very far, the girl can not stand and from strong overexcitation begins to masturbate right in the study room. Of course such an unusual activity could not go unnoticed, because it's hentai. Rio-Chan catches her classmate, who however in love with her and does not intend to talk about her little secret. In gratitude, the girl decides to give him his first time...