Serial Designation J

J is a Disassembly Drone who has neon yellow eyes and silver hair in twin pigtails tied with black ribbons. Like other Disassembly Drones, she wears a black headband adorned with five light bulbs filled with Nanite Acid. She also has a thin black tail ending in a large syringe as all Disassembly Drones have. She appears to be wearing a short-sleeved dress with pockets on the side and a black leather belt. She also wears knee-high stockings with visible suspenders. Like other Disassembly Drones, she dons a yellow armband around her left bicep.

J is best described as a "lethal workaholic", as she is incredibly dedicated to her job. J is also arrogant and prideful, as she enjoys insulting others. Despite her arrogance, J is not incapable of showing fear. Although J is not as sadistic and insane as V is, she does look down on others who are not as good as her. This is best shown in J's relationship with N, as she despises him.