Girl genius and daughter of Olga Gurlukovich. She was taken captive by the Patriots at birth, and later given nanomachines programmed to end her life should Raiden die. Eventually rescued by Raiden, the nanomachines were disarmed, and she ultimately entered Hal Emmerich's custody. Trained by Emmerich, she grew to become a brilliant computer programmer. Together with Otacon, she created the Metal Gear Mk. II and a host of other inventions. Introverted and quiet, she found communication with others difficult. She enjoys frying eggs, not as cooking, but as a form of augury where she reads the future from the cooked eggs.