He says sentences that sound extremely threatening even though its a compliment, as for example when he walked over to a girl and told her, "theyll never find your body.." And then he added, "more beatiful than i do, you lovely thing! Haha, Sparkle!" Sometimes when people get mad that him he just throws glitter at them, or around them. Nemurumōnō is absolutely terrifying looking. He looks like a villain, straight out of a horror movie, hes a surreal uncanny sleep paralysis entity of the sorts.