Probably since the remake starts with an explicit scene about it, in addition to the insinuations that some characters make with comments about it, the moment you see the Mc's brother in some random update, you can assume that the game went to hell because he is the main candidate to screw everything up, unless the Dev includes ntr as something "optional" to keep everyone happy, although it is very unlikely considering that the initial scene should have been optional, on his old blog many suggested/requested that we be allowed to choose the Mc instead of the brother but the Dev said no, so...