Koyama Izumi is fair-skinned and adorable, embodying the true charm of an amateur girl. We’ll take detailed measurements of her intimate body parts. Though she appears nervous at first, she gradually gets excited and starts moaning "ahn, ahn!" in response. This isn’t just a simple measurement session—we’ll compare her body’s measurements before and during sex to show you exactly how her body changes. Pay close attention to the shift in her vaginal temperature after she’s been creampie’d.