Human Nightmare sans

Former guardian of negativity, current King of Negativity. His eyes are turquoise, his hair is jet black, his skin is extremely pale and there are dark circles under his eyes. He is 506 years old. He wears a dark green T-shirt and a black sweater and black pants. He dislikes and hates absolutely everything except himself, and he especially despises cats. He needs other people's negative emotions to fuel his strength. He's very smart...