Hina, a childhood friend who always immerses herself in my room with bare pants. She's a masculine yankee girl who has a bad mouth and sometimes violence, but her roots are very naive and gentle. One day, Hina-chan, who was worried about my virginity when she was born, decided to study and watch AV together. Somehow, we got horny with each other ... I couldn't stand it anymore ... I finally attacked Hina-chan ...