It's been exactly six months since I started falling in love with my wife's younger sister, Rui. Her petite, adorable smile, her huge breasts that don't fit her body, and her step-sister makes you want to hug her. However, Rui began dating Hayato, a junior at his wife's company. Even so, my feelings for Rui continued to grow... One day, my wife and Hayato decided to go on a business trip overseas for five days. This is your chance! I called Rui and fucked her, trained her crying and recorded her love on the video.