The founder of Jangga Group and father of Jang Geun-won. He offers a university scholarship to Oh Soo-ah after Park Sae-ro-yi's imprisonment.
Direct business adversaries whose competing interests drive the central conflict.
A strained father-son dynamic defined by legacy expectations and eventual reconciliation attempts.
Dae-hee tries to recruit or control Soo-ah, but she resists and delivers a moral warning.
Brothers bound by family duty but diverging in their approaches to corporate survival.
Explore the full interactive character relationship map of Itaewon Class