Jae-ho sees in Hyun-soo not just a potential soldier, but a brother. He takes the younger man under his wing, teaching him the ropes of the criminal world, sharing confidences, and even planning a massive post-release drug deal. Their bond deepens into something resembling family — a rare commodity in their cutthroat environment.
is the undisputed boss of a vast drug-smuggling organization. Even from behind bars, he rules with an iron fist, ruthless intelligence, and a philosophy of absolute loyalty. He is feared and respected.
is a newly imprisoned man. Unlike the hardened criminals around him, Hyun-soo appears young, quiet, and calculating — almost fragile. But appearances deceive. He quickly catches Jae-ho’s attention by displaying a cold efficiency during a prison brawl.