YoRHa Model A No. 2, commonly referred to as A2, is a battle android from the video game NieR:Automata. Initially a member of the experimental YoRHa squadron, she becomes a rogue unit after a traumatic mission. A2 is characterized by her fierce independence and strong combat skills. She plays a significant role in the storyline as players discover her past and motivations. Her character arc explores themes of identity, freedom, and the cost of war, contributing to the game's complex narrative and emotional depth.