FC2-PPV-1840396 is a video shot in a private booth at an internet cafe. This time, a hidden camera was set up inside the booth to capture spontaneous masturbation over an extended period of time. The first participant is a woman with a pure and innocent appearance. About two hours after entering the booth, while fiddling with her smartphone, she gradually becomes curious and unconsciously begins touching her lower body. Her expressions and reactions during this moment are extremely realistic, making for a highly engaging and exciting scene.