A2 YoRHa, also known as YoRHa Type A No.2, is a key character in the action RPG NieR: Automata. She is a combat android and former member of the YoRHa organization, known for her rebellious and lone-wolf nature. Throughout the story, A2 struggles with the trauma of her past missions and the loss of her comrades. Her journey is central to the game's narrative, revealing hidden truths about the war between androids and machines, and she ultimately plays a pivotal role in the fate of humanity.