Byakuya Togami

Due to his lack of emotional ties with the other students, Byakuya was able to emotionally distance himself from the horrors of the Killing School Life, and thus proved to be one of the most competent and insightful investigators in the group due to his high level of intelligence. His compulsive competitiveness caused him to treat the Killing School Life as simply a game, and one he fully intended to win, just as he had won his battle to become the head of the Togami family - much to the disgust of the other students. An extreme example of this occured after the death of Chihiro Fujisaki, where he posed Chihiro's corpse to frame Toko Fukawa and "make things more interesting", and perceiving the dead body of Chihiro as simply "an object".