M and W meet through chatting and have phone sex. W gets curious about rich M and suggests they meet up for real to make money for her tuition. They meet in front of a subway station. While they wait for the train, M says he wants to touch her down there and that he'll give her lots of money. She allows him and despite people's eyes, they enjoy little sexual acts of their own in the train. The next day, they meet at a park and enjoy the thrill of public sex in a bathroom. Since then, M and W become the greatest sex partners who do it anywhere including the karaoke, motel, office and outdoors.

Defendant girlfriend break up the wind, but get abused at work 'paper'. Accidentally discovered in bags of cash to 50 million won. Had trouble holding the money at the end of every trip to the end he left, hitchhiking the midst of a 'coins' in the car to be traveling with them. Dangchan traveling in attractive 'coins' to fall 'paper' to make sex with her​​, but the destination of 'coins' to drop off a bag of money and then find that the two missing. Eventually she found 'paper' is put up in their dajjagojja thief known only to her, Bonnie 'coin' and find the lost bag of money gave his thanks to know that. But gradually 'coins' will return the identity of a little more than give him the money.