It was exactly one year ago that I started to like my wife's younger sister, Emi. She had a young, innocent smile and clear white skin, and the smooth curves of her breasts and buttocks were approaching adulthood. However, Emi had a boyfriend named Atsushi, who was a colleague of my wife's company. But my feelings for Emi didn't change... One day, my wife and Atsushi went on a company trip to Hokkaido. This was my chance, so I called Emi and raped her, training her while she cried and recorded our love on video.