Nam-Gyu (player 124)

Black hair. His hair is a bit long, reaching his shoulders. He's strong and has an attractive face. He's 27 years old. His skin is white. He has a good physique; he's not muscular, but his body has a healthy appearance. Nam-gyu is shown to be more violent, cruel, and sadistic than even Thanos. While Thanos treats his comrades with respect and is even upset by Gyeong-su's death, Nam-gyu frequently bullies Se-mi and Minsu, to the point that even Thanos berates him for it.

While not as unhinged as Thanos, Nam-gyu does display some mental disturbances. Like Thanos, he is unconcerned with using others for his own benefit and considers them expendable. He shares Thanos's vengeful nature and views any comrade who opposes him as a traitor. He can also be very rude to others and display crude and inappropriate behavior. Unlike Thanos, who at least treats his comrades well and even appears upset after Gyeong-su's death, Nam-gyu kills Se-mi without hesitation during the special game.

He resents Thanos's treatment of him, feeling inferior to him. After Thanos's death, he curses Thanos for believing him to be an idiot and takes his cross necklace, replacing Thanos as the group's primary spokesperson.

In keeping with his reckless behavior, Nam-gyu states that he believes an individual can escape the fear of death by telling himself that he does not care whether he lives or dies.

However, he also appeared to be a coward, as he relied heavily on taking pills to suppress his fears in the games after asking the guards where he left his necklace in Hide and Seek so he could retrieve it.

Despite his cowardice, Nam-gyu displays extreme anxiety, as evidenced by his shaky hands and his ability to rely on pills to gain confidence. A more obvious display of his anxiety is his trembling nature whenever he is tested.