A fresh-faced college student and the film's female lead. Initially repulsed by Han-ki's advances, her interactions with him trigger a chain of events that alters her relationship with her boyfriend and draws her into his obsessive orbit.
Han-ki becomes obsessively fixated on Sun-hwa after their initial bench encounter.
Yun-tae is Sun-hwa's established romantic partner and primary emotional anchor.
Myeong-su serves as a trusted peer within Sun-hwa's academic and social circle.
Hyun-ja acts as a supportive friend navigating the campus environment alongside Sun-hwa.
Min-jung is part of Sun-hwa's academic network and reacts to the escalating tension.
Explore the full interactive character relationship map of Bad Guy