ALDN-321 My wife's mother and my father Kanahinaiko

My wife and I have been married for about four years. This man is my biological father. After my biological mother passed away, we lived together with my father and my wife. And this woman here is my wife's mother, what you would call a 【mother-in-law】. Sometimes the 【mother-in-law】 would stay at our house to see her daughter's face, and we were living peaceful days. But unbelievably...my father was in that kind of relationship with my wife's mother...At that time, I couldn't even speak and just stood there frozen…