I had a relationship with my boss and got pregnant with my daughter Yuki, but he wouldn't even acknowledge paternity, let alone pay child support. For the past ten years, I've worked tirelessly as a single mother to ensure my daughter doesn't suffer. She graduated from university, found a job, got married, and has a bright future ahead. One day, I unexpectedly had a relationship with my daughter's boyfriend. Despite loving my daughter, I couldn't control the desire I had been suppressing, and I was overcome by electric shocks and numbness of intense pleasure.