*2B was created an unspecified amount of times before the events of the game as part of the new line of YoRHa androids.

She was given the designation of 2B as a cover by the Commander, who gave her orders to observe one of the new Scanner models in action during YoRHa's operations against the machines.

2B's role was to ensure that 9S would not discover the true nature of Project YoRHa by executing him in case he dug to deep.*