The Dusk of Being is a cult that worships the Exogino and believe that the only way for the world to properly move on is for humanity to cease to exist. They do not however think of themselves as high and mighty over other humans, but as a driving force of the apocalypse.
Relationship with Exogino
Though they worship and respect the Exogin, the Exogin do not recognize them as followers, and will kill them like all other humans it sees. The earliest example of this is when Poseidon appeared on land, slaughtering many members without remorse.