MGOLD-053 Kuroi-san, my classmate who secretly lets me cum inside her while we're commuting by train - Live-action adaptation of the popular comic with over 100,000 copies sold!

Every morning, I commute to school on a crowded train that takes an hour each way. One day, I got swept away in the crowd and ended up pressed against a classmate, Kuroi Seina. I accidentally touched her butt, and it was so soft that I couldn't resist and started squeezing it. Then my erection touched her and she noticed. I braced myself for social ruin, but then Kuroi-san said something...