Kana has been married for several years. Today, Kana made her beloved wife's bento and delivered it to her company. The happy and loving relationship continues as when she was newly married. In front of me like that, my junior Sakuma boasted that ``a married woman who has been married for 3 to 5 years is the easiest to drop'', and I just blurted out to try to persuade my wife. I invited Sakuma to my house and left him alone with his wife for three hours. After some time passed, I returned home, but I completely believed their words that nothing happened.