9S, also known as YoRHa No.9 Type S, is a key character in the game NieR:Automata. He is an android created by the YoRHa organization, designed specifically for reconnaissance and hacking tasks. 9S is unique among androids due to his exceptional hacking abilities, allowing him to access enemy systems and gather critical data. Throughout the game, 9S partners with 2B, another android, and together they embark on a mission to reclaim Earth from alien machines. His character is marked by curiosity, strong emotions, and a desire to uncover the truth behind the war they fight.