As summer vacation drew to a close and I struggled with job hunting, my best friend—who already had a job lined up through connections—constantly mocked me. He laughed at me for having no job offer and no girlfriend, pushing me past my limit. In a moment of pride, I lied and claimed I had someone to have sex with. In the end, I found myself standing in front of the apartment manager Yumi's room, confessing my desperate request: to have sex with her for just one week. Despite the age gap, Yumi was beautiful, big-breasted, warm, and mature—a married woman who stirred endless curiosity about what our relationship might become.