This is my first time playing this game, I haven't finished it yet, but the inconsistency in the dialogues gets annoying. It doesn't matter if you put Nancy as mother at the beginning, because sometimes Jack or Aria keep calling her Nancy, or worse, Nancy saying that "since Jack move in to the house" or Aurora saying that "Nancy and Lucy don't have children". What is the point of having the option to change the relationships if, in the end, it doesn't matter, they will remain the same?
I like the game and, although I like the incest fetish, I don't care if the game has it or not. But if it's going to stay that way, they should get rid of the relationship change and remove the incest tag, or fix the dialogues to suit the story with or without incest, as many games do.