Sana, the quiet and unassuming girl in my class, confessed her love to me. I refused, saying I couldn't go out with her, but she found out that I was unconsciously looking at her panties... After that, Sana started fidgeting and showing me her panties so that only I could see. Even though I knew it was wrong, I couldn't take my eyes off Sana's skirt, and I couldn't control myself and ended up having sex with her after school...