Hina-chan, my childhood friend who always barges into my room with her panties showing. She has a foul mouth and sometimes resorts to violence against me; she's a tomboyish delinquent girl, but deep down she's incredibly pure-hearted and kind. One day, when I got a girlfriend, Hina-chan, worried about my virginity, decided to help me study by watching AV together. But we both started getting aroused... I couldn't hold back anymore... and ended up assaulting Hina-chan.
