Board Thread:General Discussion/@comment-9756677-20150812204931/@comment-24142271-20150818135928

Like i said in one of my above theories. If it's Mephisto possessing the puppet then the puppet isn't actually a demon. It's still an inanimate object no matter what way you put it. That could be why Rin can't sense it. Or maybe because he isn't normally trying to sense for things when he's safe and with his friends. If you were chilling with your trusted buds would you be looking for demons?? lol