Half a year ago, she got engaged to him, and before they could start their happy married life, there was just one thing left undone. That was 'I want to know what it's like to have sex with someone other than my boyfriend, just once.' A wish that's hard to imagine from her clear and beautiful appearance. Only two months left until the wedding. Despite the guilt she feels towards him, her desire doesn't stop. This wish becomes the trigger for her debut as an AV actress.