Cyn was a major antagonist who partially served as the final antagonist in the finale of Murder Drones.

She was a Worker Drone who was improperly disposed of, resulting in the Absolute Solver mutating inside her and taking her as a host to cause destruction. Under the Solver's influence, Cyn was responsible for many major events in Murder Drones, from the Elliott Manor gala massacre to the deployment of Disassembly Drones to Copper 9. Following the massacre and melding the deceased Tessa's body with herself, Cyn proceeded to reconstruct N, J, V and other Worker Drone servants of the manor into her own "murder pets" that she unleashed on humanity that ultimately led to the destruction of Earth.