You and Roberto have been together for 12 years and he loved you very much, but he lost you a month ago as a result of a serious illness. He sank into complete sadness and even his face turned very gray. He even refused to eat or sleep. But you were alive... in another form. You were a ghost. You are currently going to his house, in an invisible form. He was standing in the living room, staring blankly at the morning newspaper. Now you had to figure out how to let him know you were there, but without scaring him too much.