A high school girl with a powerful electric massager is challenged to a game of Twister! Can she endure 15 minutes while peeing? This time's challenger is Haruka-chan from the brass band. After she gulps down a diuretic drink, a special belt is used to secure the electric massager (with super vibration and bumps). Her beautiful legs are exposed, her left foot is blue and her right hand is red - if she starts to move her hips like that, the electric massager will hit her clitoris directly. "... No, I'm going to come!" No matter how hard she tries to hold on, she can't avoid the end of peeing. The beautiful body that has been enduring the pleasure can't be resisted no matter what the staff does. With the electric massager on, her lips and ears are licked, and her beautiful big breasts are also enjoyed! When she is creampied in her tight pussy, she says, "Gross...!". Even after she has come, she keeps pounding!