User blog comment:Holokami/The Nightmare Cult/@comment-26362471-20161112225738/@comment-26993961-20161114200519

A marriage of Nita's group and the Nightmare Cult might make sense, but Nita only wishes for psychics to be irradicated, while the Nightmare Cult wanted to wipe the Earth clean of life- including Nita. Nita has also experienced the hell brought about by the Nightmare Cult, and doesn't want to experience that particular hell again.

There is also the plot point that Nita finds entertainment and enjoyment in playing her game of "chess" with Humanity against Lumi, so killing all life on Earth would remove her of this game.

I didn't state this bit clearly enough, sorry. The Nightmare Cultist answer only to "The Nightmare". Under the guidance of "the Nightmare" and Patriarch Julius VII, the Nightmare Cult created monstrous beings known as "nightmares" to help them scrub the Earth clean of life. In terms of fighting power, the nightmares are more powerful than the cultists, but follow the cultists' orders without question. ^^