9S is naturally curious about the world around him Usually working alone, he, is deployed on the frontlines and acts as YoRHa's main intelligence gatherer. he has a deep distrust of the machine lifeforms that now inhabit the planet. 9S is generally cheerful, optimistic, insightful, and eager to help. he's not very good at adhering to YoRHa's protocol of forbidding emotions. He speaks rather informally to those he knows well, he displays respect towards who command it