The schoolgirl, known for her strong sense of justice, intervenes to help a girl being molested on a crowded train. However, her actions backfire, making her the new target of the molester. Fueled by anger over the interference, surrounding hands close in on her body, forcing repeated blowjobs. Right before the girl she tried to save, she's subjected to continuous sex as cocks are thrust into her mouth and pussy. Used condoms are wrapped all over her body as she becomes endless prey to an inescapable gang rape on the train.