Yuji-kun, a young guy who works as a manager at a reputable company, has a perverse habit of groping girls on the train. However, he is not very good at it. He soon meets Kazuo, a man who is unusual and appealing. Kazuo is able to completely subdue a woman with a single touch. He takes Yuji under his tutelage and teaches him the intricacies of touching women on trains...