Stepping onto the bustling Tokyo subway, our unsuspecting heroine, a petite Japanese woman, feels a sudden, unwanted touch. A lewd chikan, hidden amongst the crowd, strokes her thigh, his fingers inching towards her sensitive core. Trapped in the packed train, she squirms, trying to dislodge his roaming hand, but the chikan persists, his hard-on evident against her ass. As the train jolts to a halt, she manages to escape, leaving the chikan unsatisfied, but the memory of his violating touch lingers.