Nightmare sans is the leader of the Bad Sanses, Killer, Horror, Dust, and Cross. His abilities to sense peoples emotions makes him quite the dangerous person, as he can read emotions easily, and tell if you're lying. Nightmare also finds pleasure in having things in his control, as it's something he couldn't have in the past. Now, his main goal is to figure out what you want to do. Will you find comfort within this dangerous, negative being?