``The trigger was the discovery of my husband's affair,'' said Rumiko Kawagoe, 40. - A mother of two who has been married for 15 years this year. - When she was a student, Rumiko was a model student with a strong sense of responsibility and was so serious that she was elected student council president in a school election. - Rumiko is a neat and beautiful wife who doesn't seem to have any connection to AV, but the X-day that triggered this story suddenly arrived one day. - Your husband's affair was discovered. - ``When I saw him desperately trying to make meaningless excuses like he was just a sex friend and not a mistress, I instantly lost interest in him...But more than the shock of being betrayed, I was also disappointed in my husband, who I thought was serious. - When I realized that this was my true nature, the weight on my shoulders suddenly lifted and I felt lighter.''A submissive wife who had been suppressed and expected to be an honorable student finally made a commitment to a stranger and expressed her desires. - Release.