A meek, schoolgirl in uniform, forced to endure being molested on a train until she orgasms, unable to even utter a sound or ask for a stop. (IPZZ-882)

"She jerked!!" (Just now... I think something bumped my butt... It was so crowded on the train, it was just an accidental bump, right...?) Her peaceful daily life was suddenly shattered, and a world that didn't belong to her was intruded upon. A beautiful schoolgirl in uniform, too afraid to resist, was left to be manipulated at will by a pervert. "She jerked again!!" (Am I... actually a pervert...?) The unprecedented pleasure made her desperately try to suppress any sound. Her body was incredibly sensitive, yet she was aroused without uttering a sound; she was the perfect target in the pervert's eyes. "Splash..." (Squirting is too embarrassing... Don't look...) This innocent girl, who didn't even understand what a pervert was, was thus, with the purest of feelings, sinking step by step into the abyss of pleasure on the train—