A high school girl with a strong sense of justice saves a young girl being harassed on a crowded train. But now, she finds herself surrounded and targeted by the harassers! Frustrated by the interference, they swarm around her like they're seeking revenge, forcing her into aggressive fellatio again and again! Right in front of the girl she saved, they thrust their penises into her and engage in continuous sex! Covered all over her body with countless used condoms... she becomes a victim of endless 'train groping' abuse!