Haruko, who applied to support her graduate research, came to the AV interview dressed seriously in a business suit. Deeply focused on biology, she might not know much about the outside world. We had her do gonzo sex scenes while keeping her suit on, treating her body like a test subject as she experienced thorough sex. Next, we had her masturbate wearing a lab coat in a "science girl" style. Her mind and body gradually learned pleasure, and by the final sex scene, she became so sensitive that any touch made her shiver with goosebumps while staying fully erect. Enjoy watching this reserved, beautiful science girl slowly reveal her feminine side.