Game with no actual indication of the gameplay. What can change? Can the japanese characters change? Can the motive in the dress change? Can the floor change in size? Can the position of the girl change? Can the pixels inside the nude drawings change? Can the decorated knife change its size?
No one knows. It is fine for a game to stay a bit vague for the player to discover, but this is too much. It would have been better if it game overed you when you made a mistake, telling you what you missed, instead of this pure randomness. Or the MC telling himself, ' I feel i missed something ' when you make a wrong door call. So at least you know that you missed to check on something.