Yuki and I have been married for several years. She is still living a happy married life, just as she was when she was newly married. Perhaps it's because she's so proud of herself that she spends her days like that, but Sakamoto, her junior, boasts that ``It's easiest to fall in love with a married woman when she's married and settled down,'' so he tries to woo her. I blurted out... I believed in Yuki, so I invited Sakamoto to my house and left her alone with my girlfriend's wife for three hours. Time passed and I returned home, but I completely believed what they said when they said that nothing had happened.