I tried playing this one before. I chose the son route and it just never caught my interest. However for whatever reason, I went back and played this one again but the father route and my God. Okay first, this game needs an actual NTR tag, no not the sharing one that gets lumped in with it. I'm meaning soul crushing relationship problems that never had a chance of getting fixed.
Another thing, my sky ghost this story is depressing. At least as the father anyway. Trying to repair your marriage while as a player knowing that just behind that door you have no chance. Then add in the absolute fixing psycho that is the sister in law and high school ex of the father and her abused and warped daughter; that'll give you nightmares man.
Still haven't finished it yet, too tired and I'm honestly not expecting a happy ending. So to those random people that stumble upon this story and are in the fence, take the chance. You're not gonna find a lot of porn (again at least not a lot in the father play though) but you are going to find a terrible tragedy that I feel should be called the "Carmen" of adult visual novels.
Carmen was a play if that last sentence confused you.