Jamie Hazaford is an engineer of the Kivernas Manufacturing Company in charge of the transport of the titular mecha, Argevollen. She is usually anxious and uptight but is also shown to be very brave at times.

After an encounter with the Ingelmian troops that killed all of her companions, she was escorted by the Arandas Army's 8th Autonomous Unit to safety. She was hoping to get back to her old department but was given official instructions to stay with the military now that she is Argevollen's activation key.