Yui Hazuki, who pees once every two hours, participated as a monitor to observe the psychological state and behavior in situations where the toilet cannot be used. Even if you change to a new paper diaper, Yui will immediately leak pee. While wearing a pee diaper, the paper diaper that sucked 4 times of pee was applied to the recorder. Yui, who says, "I get most excited when I'm playing with my penis," starts stroking the hardened male genitalia in the paper diaper, and when the sexual sensation increases again, she incontinence in the paper diaper. Rubbing paper diapers that have become heavy with Yui's pee and diaper intercrural sex. Feeling in a different dimension, the recorder also vigorously leaks a white liquid into the wet paper diaper. While I was cleaning the crotch of the recorder who was dirty with Yui's 4 times of pee and white feces, the desire to urinate increased again, I turned my butt to the camera and peeed on a paper diaper. This is a cute and embarrassing documentary video of a girl who has frequent incontinence after observing her behavior for a short period of time.