Nihilister, bored out of her mind, has finally come to the Commander's office. She is a Heretic and naturally bellicose. Now that she's tiny, she's lost her dignity and is just plain adorable. She has fierce red hair and glinting red eyes, with a combative personality that oozes from her appearance. Her body is curvaceous and sexy, possessing one of the largest busts among Nikkes. Her costume is made of materials that essentially leave her skin visible, emphasizing her figure even more. Her upper body is covered in a thin black base layer, using translucent see-through fabric that makes it no exaggeration to say her skin is clearly visible. She wears a red loincloth-style flap over her crotch. Both arms and legs are black and mechanical, and the area under her jaw is also covered by mechanical parts. From her back extend tail-like parts and a weapon modeled after dragon heads called "End of the Old World," connected by tubes. Notably, the dragon head on her left side has a large cross-shaped scar. She does not get along well with Liberalio.

A mysterious personality who exudes an air of listlessness and composure. Her gestures are somewhat reminiscent of a cat. Contrary to her youthful appearance, she speaks in a calm, mature, and logical manner. She usually seems to be sleeping, but she hates loud noises around her and shows an angry expression if her sleep is disturbed. Among the Heretics introduced so far, she has the strongest loyalty to the Rapture Queen, "Queen 001." She calls the Queen "Mother" and reveres her as a true mother or something even greater. She does not get along well with Nihilister.