One day, my boss suddenly announced the company's bankruptcy, and I lost my job. Unable to tell my wife the truth, I wandered the streets, pretending to go to work. While killing time in the park today, I happened to meet Nia-san, a married woman who lives next door. Our couples had been close on a family basis. When I told Nia-san about the circumstances of my firing, she seemed to be lonely in some way, and suggested, "Why don't you work at my house from 9 to 5?" From that day on, I began to do cleaning and cooking at Nia-san's house. As we spent time together, we were drawn to each other as if filling the gaps in our hearts. And from the day she suddenly kissed me, we stepped into a forbidden relationship...