A few years have passed since I married my wife, Sumire. Although she was promoted at work and sometimes caused trouble at work, my relationship with my wife was going well... One day, I was talking about marriage with my junior colleague, Zuo Ci, and he said he had no interest or desire for marriage, so I decided to have him experience a simulated marriage with my wife to make him understand how good marriage is. After leaving them alone for three hours, Zuo Ci also seemed to understand the good things about marriage. A few days later, he said he wanted to come over to my house again, so I set up a hidden camera to tease him, but...