A man living in Tokyo becomes obsessed with stalking an average woman named O-san. He records her every move during her leisure time, including on public transportation. Despite capturing intimate moments like her panties, he remains unsatisfied and decides to escalate his actions by secretly ejaculating onto her body while she sleeps. This leads to a surreal experience where both exhaustion and arousal overwhelm her senses. After successfully carrying out his plan, he takes her straight to a room for sexual gratification, using her body as an object of pleasure without any regard for her feelings or consent.
