A monitor that observes psychological state and behavior in situations where the toilet cannot be used.Hina Kawai has a hip size of 100 and a dynamite butt.Perhaps she can store a large amount of water in her huge hips, but she only urinates about three times a day.However, even though he is not allowed to use the toilet, he goes beyond his limits and ends up soaking wet her underwear that covers her big ass.Hina has learned how to put a diaper on her, and decides to put a disposable diaper on her little sister.She was astonished to see that her humble older sister had a penis, and the penis was bulging as if she were a mother.Hina is also very excited to see Himena getting tickled.The two of them are thrilled with their matching diapers, and their crotches are pressed together and rubbed against each other, making them feel naughty.This is a fancy documentary video of such an innocent super-hip girl and a diaper-loving dick older sister.