A father-in-law with a strong sex drive takes erectile dysfunction drugs and becomes an outrageous and persistent perpetrator against his daughter-in-law. (Ninomiya Hikaru ADN-473)

My wife passed away a year ago. I'm now living with my son and his wife. I'm more health-conscious than most people, and my lower body is in good shape. That's why I get sexually aroused when I see my daughter-in-law, Hikari. However, I never thought that just thinking about it would lead me to cross the line... until yesterday. I don't know why, but I couldn't control my sexual desire; even when I masturbated, my erection persisted. When I looked at Hikari, I couldn't control the urge to rape her.