Chika Arimura plays a private tutor who secretly installs hidden cameras in her student's room and her own bag to record her seduction of him. While rummaging through his room, she discovers his underwear, sniffs it, and presses it against her crotch for stimulation. Upon learning that he has been masturbating, her erotic behavior intensifies dramatically. While pretending to teach, she fondles him, rubs her pussy against his cock to tease him, and her lust continues to escalate until she ultimately engages in deep physical intimacy with her student.