ALDN-236 My wife's mother and my father Hakogawa Kasei

My wife and I have been married for about four years. This man is my biological father. My biological mother passed away, and we live together with my wife. The woman here is my wife's mother, what you would call a 【mother-in-law】. Sometimes the 【mother-in-law】 stays at our house to see her daughter, and we've been living peacefully. But who would have thought…my father and my wife's mother ended up in that kind of relationship…At that moment, I couldn't even speak and just stood there frozen…