After losing my husband, I was overwhelmed by loneliness and driven by desire, leading me into a relationship with my neighbor, Mr. Shinagawa. He, too, became eager for intimacy after so long, and we lost ourselves in passion. During those moments, my son was never home. One evening, as I was preparing dinner, I suddenly felt my son's hand touch my buttocks. In that instant, everything became clear—he had been watching me, and he knew about my affair with Mr. Shinagawa.