Formerly known as Unit 04. She was dispatched on a mission to kill a certain Warlord in the past, to prevent a massacre. She was severely damaged in the mission, but chose to continue on anyway. After completing the mission, the Unit refused to return, forcing the base to retrieve her by force; overloading her power core. 04 ejected the power core, but not enough time to escape the blast, and was caught in the explosion. However, there was no parts or remains left behind or any indication that the Unit had been destroyed. 04 was to be MIA.