"Shinguuji Nao", 20 years old. 'I never had a youth.' She developed feelings for a man during her student days, but they passed without coming to fruition, and afterward, she kept her distance from love. One of the reasons she lacks self-confidence is being a 'virgin'. To graduate from this and open up a new world, she decides to appear in AV. She has never even kissed, doesn't know where the clitoris is located, and has never seen a penis... She feels anxious and embarrassed about having her body touched by a man, and experiences an unknown sensation along with pain as the inserted cock penetrates her.
