"It's like an undercover investigation… is it okay if I do it? I'll play Ryo-san's girlfriend." My wife and I were asked by our best friend, Ryo, to help him make his mother, who was pushing him to get married, give up. I was going to refuse, but my wife said, "You owe me one, right?" and she was cooperative, so I reluctantly agreed to his request. A few days later, I thought we would have a dinner at a hotel and come back right away, but it seems that Ryo's mother, being considerate, prepared a hotel room for us. And after receiving a message that we would return before the last train, I didn't receive any reply from my wife…