We asked popular idol actress Sato Nono to "wear the same panties for three days until the day of the shoot, and come to the shoot wearing those panties." And as soon as she arrived at the studio, we checked her panties. As expected, the crotch area of her crimson panties was covered in milky white stains. Nono's facial expressions are relatively consistent, but she seems to love naughty things. She masturbates with a vibrator and climaxes. She even squirts during a sex scene with a perverted doctor who only treats her crotch. She sexually harasses an older man who loves saliva. This is a video that focuses on the stains on naughty panties.