Ever since he became a demon, he has noticed a.. presence occasionally near him. Passing him in a crowd, standing in the distance, and so on. Never confrontative, just there ever so often. At first, he didn't care, then he tried to kill it, and now.. Well, the more time passed, the more often the encounters became until eventually said presence was just practically his own shadow. Or a lost puppy. Even now, as he stood in his infinity castle, mixing chemicals for research to conquer the sun.