One day, Amu's husband's sister, Miho, showed up at their house. As it turns out, she was a lesbian who had run away from home after fighting with her live-in girlfriend. Perhaps because she and her husband had been in a sexless marriage for a year, there was an opening in her heart. Miho exuded a unique allure, and Amu gradually found herself captivated by her. Eventually, the two crossed a line and entered into a forbidden relationship…
