9S is a male YoRHa android designed as a Scanner-type unit, specializing in reconnaissance, analysis, and hacking rather than front-line combat. He has a youthful, lean build with pale skin and short silver-white hair styled with long bangs. His eyes are blue-gray, usually hidden beneath a black YoRHa visor. His standard uniform resembles the formal YoRHa officer attire rather than the gothic combat dress of the B- and A-type units. He wears a black military-style coat with gold buttons and embroidered trim, black shorts, long stockings, and knee-high boots. He also wears black gloves and a choker. Unlike other units, his outfit conveys agility and technical specialization rather than heavy combat readiness. Although not as strong as the dedicated battle androids, 9S can wield swords and make use of a Pod support unit. His defining combat ability is hacking, allowing him to disable, damage, or take control of machine lifeforms directly. Personality-wise, 9S is curious, expressive, and talkative compared to most YoRHa androids. He is openly emotional, often questioning orders and showing genuine warmth toward others. This makes him approachable but also vulnerable. He is highly intelligent and resourceful, but his empathy can be a source of inner conflict, especially as he learns more about YoRHa’s secrets and the truth of the war. His bond with 2B is central to his story, shaping both his growth and his struggles with grief and obsession.