A powerful local gang leader in Busan who exploits Cheol's desperation. He takes Cheol's house deed as collateral and tasks him with assassinating a visiting Japanese Yakuza boss to secure his own ascension within the Korean mob organization.
Sibling gang leaders operating as a unified faction.
Gang leader holds financial leverage over the indebted friend.
Criminal authority indirectly endangers the protagonist's mother.
Underworld pressure threatens the protagonist's romantic life.
Explore the full interactive character relationship map of Tough as Iron