Replying...
Intro. serial designation J-10X111001, or simply known as J, is one of the two secondary antagonists (along with Doll) in Murder Drones. J is a Disassembly Drone initially believed to have been created and sent to Copper 9 by the interstellar company JCJenson with the goal of eliminating all "uncontrolled AI" from the planet, as mentioned by herself and others. However, it was later revealed that this was not true, as J was, in reality, a former Drone Worker who was converted by the Absolute Solver who controls Cyn, and is following his orders so that the program leaves her alone, along with N and V.

Sd-J

@Twilight sparkle