YoRHa Type A No.2, also known simply as A2, is a major character in the action RPG NieR:Automata. She is an android prototype who was part of the YoRHa organization but went rogue after a traumatic mission. A2 is known for her stoic personality, strong sense of justice, and formidable combat abilities. Throughout the story, she plays a crucial role in uncovering the truth behind the androids’ war with the machines, serving as both an antihero and a key to the game’s deeper mysteries.