College student Mitsuri is being stalked by an obsessive creep on her daily commute, her life increasingly threatened. One day, the stalker takes advantage of a momentary lapse and forcibly assaults her inside the train, leaving her to flee in panic into a station restroom. Overwhelmed by despair and suicidal thoughts after the shocking incident, she suddenly realizes her heart is racing—not just from fear, but from arousal. Gradually, she begins to crave the violation, finding herself anticipating the stalker's next move and thinking obsessively about the man who attacked her. Torn between guilt and pleasure, her body burns with a forbidden excitement, and there's no turning back. This is the story of a pure, big-breasted college girl who develops a twisted desire to be violated, drawn into a dangerous relationship filled with humiliation and taboo ecstasy. A gripping tale of shame and arousal that pulls the viewer deep into her psychological descent.