V, J and N

"Copper-9" is the code name for the exoplanet.

It was a terrestrial exoplanet colonized by the JCJenson corporation, valued, at least in part, for its mining operations, manufacturing industry, and robotics research. The planet was the site of a devastating core collapse that reduced its surface to a dense, frozen wasteland, inhospitable to all biological life.

It is now the current home of the Worker Drones, also nicknamed "rebels," who were left behind after the biological extinction event, along with some Murder Drones sent by the "Absolute Solver" to exterminate all the Worker Drones.

V has features similar to the typical female Murder Drone, with neon yellow eyes and a short bob hairstyle with silver or white hair. Like other drones, she has four-fingered hands, white arms, and wide forearms ending in yellow and black stripes. She has a long black tail attached to a large syringe of neon yellow liquid, which is nanite acid. She also wears a headband with five light-up bulbs filled with nanite acid, which are described as her "true eyes." She wears a short-sleeved black coat with a fur collar and cuffs. Her legs are painted black up to the thigh, giving the appearance of thigh-high stockings. She wears a yellow armband with three black stripes, as well as another yellow armband on her upper left arm.

V appears to be a heartless, sociopathic drone who is incredibly savage and takes immense pleasure in mercilessly murdering Worker Drones. She frequently laughs menacingly as she kills her victims, sometimes even humiliating them in the process. Despite this, she is capable of some empathy, as when N was upset after an encounter with Uzi and AbsoluteSolver, V concealed the fact that the chains holding her captive were broken. Instead of escaping and leaving N alone, V put him back in his place and continued to keep him company. Furthermore, she is shown to be somewhat affected by his sadness, implying that she cares for N even if she doesn't understand him. When V was a Worker Drone, she was more level-headed and kind than she is now, as well as significantly more timid. It is also implied that V may have had feelings for N originally; after the events of the gala massacre, she tried to protect N, which is why she distanced herself from him.

"V", "SD V" or "Serial Designation V" means FEMALE.

J has features similar to a typical female Murder Drone, with neon yellow eyes and silvery-white hair styled in two tails tied with black ribbons. Like other Murder Drones, she wears a black headband with five sections of lights and a long, thin black tail ending in a large syringe, both containing a neon yellow liquid. She appears to be wearing a short-sleeved dress with a belt at one side, as well as strap buttons and side pockets, with a Bowie-style detail that gives her the appearance of a businesswoman, as seen in the pilot and concept art. She seems to be wearing knee-high stockings that give her an anime schoolgirl look, and like other Drones, she wears a yellow armband around her left elbow.

J is best described as a "lethal workaholic," given her incredible dedication to her job, though she's not as sadistic or unhinged as V. She looks down on others who aren't as good at their assigned tasks. J is also arrogant and proud, as she tends to enjoy insulting others. Despite this, she does acknowledge her fellow drones whenever she does something worthwhile. J genuinely praises their efforts and rewards them with a pen, an item she actually considers an accomplishment.

"J", "SD J" or "Serial Designation J" means FEMALE.

N has similar characteristics to the other male Murder Drones, with neon yellow eyes and short white hair. Like other Murder Drones, he has four-fingered hands, a black headband with five sections of lights, and a long black tail that ends in a large syringe filled with acid, which he uses to dismantle drones. The headband and syringe contain a neon yellow liquid. For a time, after his head was blown off, one of the lights on his headband was red, which returned to yellow after his system was rebooted by J. He wears a black winter coat with a fur collar, a yellow armband, and a black pilot's cap. He has a visor with a screen on the upper half of his face, where two oval silhouettes appear, which are essentially his eyes. His visor is part of his body.

N is kind, shy, and also socially awkward and affectionate. He wanted to be friends or at least be accepted and recognized by his squad, but due to his naive and kind-hearted personality, he ends up being ostracized.

Due to the aforementioned attitudes, his squad members doubt his usefulness and treat him like an outcast. V ignores his existence, while his superior, J, often threatens and insults him, even going so far as to say that if he were allowed to kill useless dismantling drones, he wouldn't hesitate. However, N ignores the negative opinions and antagonism of all his squad members and constantly forgives them. He even goes so far as to protect them. He seems to trust people, despite all claims to the contrary. N is a perfectly capable dismantling drone who has skillfully used his weaponry to a reasonable degree; he is also remarkably perceptive and intelligent.

"N", "SD N" or "Serial Designation N" is MAN.