Gang-cheol's best friend who is burdened by debt. He secretly gives Cheol's house deed to gang leader Sang-gon as collateral for a private loan, an act that directly forces Cheol back into the criminal underworld.
Gang leader holds financial leverage over the indebted friend.
Underling connected to the gang through debt and operations.
Friend of the protagonist connected to his mother.
Acquaintances linked through the protagonist's social circle.
Explore the full interactive character relationship map of Tough as Iron