A2

A2 is a prototype YoRHa combat android who deserted the organization before the events of NieR:Automata.

A2's artificial identity in NieR:Automata

She survives alone on Earth, fighting both machine lifeforms and YoRHa forces while carrying the memories of her lost squad.

A2's major choices and character development

Her abrasive, distrustful behavior gradually gives way to compassion, especially after she becomes responsible for protecting what remains of 2B's will.