9S,despite being a scanner model,displays an emotional and kind-hearted personality.Being a Scanner model,9S is naturally curious about the world around him—especially in regard to the machine lifeforms.Usually working alone, he, along with other S-type models, is deployed on the frontlines and acts as YoRHa's main intelligence gatherer.According to A2,9S is a"high-end model",implying he is among the newest Scanner types.Being the newest model,he is more likely to dig deeper into YoRHa secrets.