I had an affair with my boss at work and became pregnant with my daughter, Yuki, but he wouldn't even acknowledge paternity, let alone pay child support. I worked hard for the past 10 years so that my daughter wouldn't have to struggle because I was a single mother. My daughter graduated from college, got a job, got married, and had a bright future ahead of her. Then, one day, I unexpectedly had a relationship with my daughter's boyfriend. Despite my love for my daughter, I couldn't control the desires I had been holding back, and I was overcome by a tingling pleasure as an electric current ran through my body...