Nihilists are a species of Glaggle that has gone feral and have turned gray, and they now look much like a Neutrol because of their gray skin and their mouth that looks much like a Neutrol’s One, and this could even be related on how they felt before they went feral, neutral and empty. But anyways we have found out come from a different dimension nicknamed “Dimension 12”, because that’s the amount of dimensional energy that came out of it’s portal.