It's been a year since my wife passed away. I decided to live with my son and his wife. I'm more careful about my health than anyone else, and my lower body is still active. That's why I when I see my son's daughter-in-law, Hikari. However, I never thought that I would cross the line just by thinking about it in my head. ... That is, until yesterday. I don't know why, but my libido can't be suppressed, and even if I masturbate, I still have an erection. At that time, when I looked at Hikari, I couldn't suppress the urge to commit it.